Identification of Accelerants, Fuels and Post-Combustion Residues Using A

Total Page:16

File Type:pdf, Size:1020Kb

Identification of Accelerants, Fuels and Post-Combustion Residues Using A Analyst Identification of accelerants, fuels and post -combustion residues using a colorimetric sensor array Journal: Analyst Manuscript ID: AN-ART-04-2015-000806.R1 Article Type: Paper Date Submitted by the Author: 14-Jul-2015 Complete List of Authors: Li, Zheng; University of Illinois at Urbana-Champaign, Jang, Minseok; University of Illinois at Urbana-Champaign, Askim, Jon; University of Illinois at Urbana-Champaign, Suslick, Kenneth; University of Illinois at Urbana-Champaign, Chemistry Page 1 of 7 Please do notAnalyst adjust margins 1 2 3 4 Analyst 5 6 7 ARTICLE 8 9 10 11 Identification of accelerants, fuels and post-combustion residues 12 13 using a colorimetric sensor array 14 Received 00th January 20xx, a a a a Accepted 00th January 20xx Zheng Li, Minseok Jang, Jon R. Askim and Kenneth S. Suslick* 15 16 DOI: 10.1039/x0xx00000x A linear (1x36) colorimetric sensor array has been integrated with a pre-oxidation technique for detection and identification of a variety of fuels and post-combustion residues. The pre-oxidation method permits the conversion of fuel 17 www.rsc.org/ 18 vapor into more detectable species and therefore greatly enhances the sensitivity of the sensor array. The pre-oxidation 19 technique used a packed tube of chromic acid on an oxide support and was optimized in terms of the support and 20 concentration. Excellent batch to batch reproducibility was observed for preparation and use of the disposable pre- 21 oxidation tubes. Twenty automotive fuels including gasolines and diesel from five gasoline retailers were individually 22 identifiable with no confusions or misclassifications in quintuplicate trials. Limits of detection were at sub-ppm 23 concentrations for gasoline and diesel fuels. In addition, burning tests were performed on commonly used fire accelerants, 24 and clear differentiation was achieved among both the fuels themselves and their volatile residues after burning. 25 dog’s responses; in addition, training dogs requires substantial 26 Introduction time and effort. 22 Some commercialized hydrocarbon gas 27 analyzers can detect and quantify flammable accelerants by Fire incidents, both accidental and malicious, have become a 28 vapor sampling, but are unable to identify specifically which pressing issue in modern life due to their threat to human life, 29 accelerant is present. 23, 24 Numerous other detection methods property, and environmental safety. According to reports from 30 still suffer from high cost, low sensitivity, lack of the US Fire Administration, over 1.5 million fires occurred 31 reproducibility, interference from humidity, or changeable throughout the US in 2013 which caused over 3000 deaths, 25, 26 32 1 responses due to sensor aging. For these reasons, the 17,000 injuries and $10 billion in property damage. 33 11 Automotive fuels and other petroleum products such as development a high-performance portable sensor for the on- 34 gasoline, diesel, and kerosene are commonly employed as site analysis of fire accelerants or quality control of fuels 35 accelerants in case of arson; rapid discrimination among remains an important goal. 36 accelerants is therefore particularly important for fire scene In the past decade, the use of disposable colorimetric sensor 37 2-7 arrays (CSAs) has been developed for a variety of vapor investigation. Additionally, the need for simple field- 27-29 38 deployable quality control of automotive fuels has drawn great analyses. CSAs use strong chemical interactions between 39 attention because of the negative effects caused by the the analytes and a diverse set of cross-responsive 40 adulteration of gasoline or diesel (e.g., engine damage and air chemoresponsive dyes; digital imaging of the arrays permits 41 8, 9 identification of a composite pattern of response as the pollution), and the fuel oil industry has suffered from 27-33 42 fraudulent mixing of low-priced reagents with higher-priced “fingerprint” for a given odorant. These arrays take 43 fuels. 10 advantage of plasticized films or organically modified siloxanes 44 Currently, the detection of fire accelerants is generally (ormosils) as matrices for colorants whose color changes are affected by polarity/dipolarity, Br ønsted and Lewis acid-base 45 determined by standard analytical methods including 27-29 46 electrochemistry, 9, 11 fluorescence, 12 Fourier transform interactions, redox reactions, and π-π interactions. 13-15 2, 16, 17 Although colorimetric sensor arrays perform well for a 47 infrared spectroscopy (FTIR), Raman spectroscopy, 34-36 48 GC 13, 18 or GC–MS, 19-21 most of which demand non-portable variety of gases and volatile liquids, they have not shown high sensitivity to less-reactive analytes, such as aliphatic and 49 and expensive instrumentation. Canine teams offer a more aromatic hydrocarbons or halocarbons. 30, 37 A typical gasoline 50 easily fielded approach for detecting accelerants in fire debris, consists of 30-50% alkanes, 5-10% alkenes and 20-40% 51 though results are less reliable than traditional analytical methods as they are subject to human interpretation of a aromatics and therefore does not respond to a sensor array 52 designed for strong chemical interactions. We have previously 53 shown that substantial improvements in the detection, 54 identification, and quantitation of less-reactive volatiles can be 55 made by employing a pre-treatment technique in which the 56 analyte gas stream is subjected to partial oxidation and thus 57 58 59 60 This journal is © The Royal Society of Chemistry 20xx J. Name ., 2013, 00 , 1-3 | 1 Please do not adjust margins Please do notAnalyst adjust margins Page 2 of 7 ARTICLE Journal Name 1 2 converted into more easily detected oxidation products (e.g., 3 aldehydes and carboxylic acids). 37 We demonstrate here that 4 this technique can be extended for the identification of 5 complex fuel mixtures and have examined discrimination 6 among a large number of commercial fuels, differentiating 7 among both the fuels themselves and their volatile residues 8 after burning. 9 10 11 Experimental Fig. 1 Photographs of the colorimetric sensor array used for fuel detection. (a) Linear 12 Chemicals and Materials 13 36-spot colorimetric sensor array containing metalloporphyrins, acid- or base-treated 14 For the gasolines used in these experiments, we provide their pH indicators, solvatochromic/vapochromic and metal-containing dyes; (b) colorimetric brand name and average octane number (ON = (R+M)/2, sensor array mounted in an aluminum holder with an o-ring placed in a groove and a 15 glass slide cover in place; this provides a nearly ideal flow path for the analyte stream where R is the research octane number and M is the motor with a flow volume of ~85 µL. 16 38 17 octane number). Three different grades of gasoline (i.e., regular, ON87; plus, ON89; and premium, ON93) and diesel 18 Analyte Vapor Generation fuel were purchased from five local gasoline distributors (i.e., 19 Mobil, Marathon, Shell, BP and Schnucks). Ethanol, i-propanol, Analyte flow streams were produced by bubbling dry nitrogen 20 kerosene, mineral oil, aluminum oxides (Brockmann I, Sigma- through the liquid fuels (ESI†, Fig. S2A), or by flushing dry 21 Aldrich), silica gels (Davisil, Sigma-Aldrich) and all other nitrogen over a carpet sample (2.5x2.5 cm nylon carpet 22 reagents were of analytical-reagent grade and used without samples loaded with 1 mL of accelerant with or without 23 further purification unless otherwise specified. Lubricant (WD- burning for 1 min, as shown in ESI†, Fig. S2B). The resulting 24 40 type 110071), vegetable oil (Great Value) and nylon carpet vapor streams were then mixed with a diluting stream of dry 25 (Guardian, platinum series) were purchased from a local and wet nitrogen to attain the desired concentrations at 50% 26 supermarket. relative humidity (RH) by using MKS digital mass flow 27 controllers (MFCs). For all the experiments performed in this 28 Formulations, Preparation and Sensor Array Printing study, the flow rate was 500 sccm. The response of the sensor 29 array essentially reaches equilibrium during the first minute Sol-gel pigments were prepared as previously described. 39, 40 30 and is not dependent (after equilibration) on flow rate or dose. Sol-gel formulations were obtained via the acid catalyzed All data was compared after equilibration after 1 min exposure 31 hydrolysis of silane precursors (e.g., mixtures of to the analyte flow. 32 tetraethoxysilane (TEOS), methyltriethoxysilane (MTEOS), 33 octyltriethoxysilane (octyl-TEOS)). The resulting ormosil Digital Imaging and Data Analysis 34 formulations after hydrolysis were added to the 36 selected 35 dyes (ESI†, Table S1) and then loaded into a 36-hole Teflon For all sensing experiments, sensor arrays were imaged on a 36 inkwell. Sensor arrays were printed on a robotic microarray flatbed scanner (Epson Perfection V600). The array was 37 printer (Arraylt Co., Mountain View, CA) by dipping slotted equilibrated with 50% RH nitrogen for 1 min at a flow rate of 38 pins into the inkwell and delivering the formulation (~100 nL) 500 sccm to capture the before-exposure image, and after- 39 to a polyvinylidene difluoride (PVDF) membrane (Fig. 1a). Once exposure image was acquired after 1 min exposure to the fuel or post-combustion vapor at 500 sccm. Difference maps were 40 printed, the arrays were stored in a N 2-filled glove bag for 41 three days. Each array was then cut into strips and mounted in obtained by subtracting the red, green, and blue (RGB) values 42 a custom made aluminum flow cell, with channel dimensions of before-exposure images from those of after-exposure 43 of 3.0 × 0.5 × 57 mm (Fig. 1b). A Viton o-ring is placed in a images; each sensor spot was ~100 pixels, the values of which 44 groove around the channel and a standard glass microscope were averaged.
Recommended publications
  • Forensic Analysis of Fire Debris Residues
    INDIANAPOLIS-MARION COUNTY FORENSIC SERVICES AGENCY Doctor Dennis J. Nicholas Institute of Forensic Science 40 SOUTH ALABAMA STREET INDIANAPOLIS, INDIANA 46204 PHONE (317) 327-3670 FAX (317) 327-3607 EVIDENCE SUBMISSION GUIDELINE #4 FORENSIC ANALYSIS OF FIRE DEBRIS RESIDUES INTRODUCTION A fire investigation is an unenviable task. The devastation, charred debris, collapsed structures, water soaked ashes, together with the smoke and stench, makes the task uninviting and seemingly impossible. The basic role of an investigator at a fire scene is twofold: firstly to determine the origin of the fire (the site where the fire began), and secondly to examine closely the site of origin to try and determine what it was that caused a fire to start at or around that location. An examination would typically begin by trying to gain an overall impression of the site and the fire damage; this could be done at ground level or from an elevated position. From this, one might proceed to an examination of the materials present, the fuel load, and the state of the debris at various places. Fire debris is a general term used to define the materials collected from a fire scene for laboratory examination. When a fire investigator suspects that a fire might have been deliberately set using accelerants such as ignitable liquids, it is possible to collect and analyze fire debris to see if such products are present. Combustion requires three elements — heat, oxygen, and fuel. Fire will be extinguished when any one of these three elements is absent. Fire does not burn solids or liquids (in general), but rather the gases formed above them.
    [Show full text]
  • Residues of Fire Accelerant Chemicals Volume I: Risk
    RESIDUES OF FIRE ACCELERANT CHEMICALS VOLUME I: RISK ASSESSMENT Prepared for: Intermountain Region USDA Forest Service Ogden, UT By: Headquarters: 8000 Westpark Drive, Suite 400 McLean, VA 22102 October 16, 2002 Abstract This report summarizes the results of quantitative human health and ecological risk assessments of chemical residues in the environment from the use of a variety of accelerants to ignite prescribed burns. On a per-unit basis for each ignition method, no risks were identified for human health, nor for general wildlife species. However, consideration should be given at the planning stage to protecting sensitive aquatic species in small watersheds that have limited potential for diluting residue chemicals that may run off or erode to surface water. Table of Contents 1.0 Introduction.............................................................................................................................1 1.1 Background: Fire Accelerants.....................................................................................1 1.2 Identification of Accelerant Residues ..........................................................................2 1.3 Overview of the Human Health Risk Assessment .......................................................4 1.4 Overview of the Ecological Risk Assessment..............................................................4 2.0 Human Health Hazard Assessment.........................................................................................6 2.1 Background Information ..............................................................................................6
    [Show full text]
  • Model 950-ASH Arson Scanner Hydrocarbons and Accelerants Detector Operation and Maintenance
    Model 950-ASH Arson Scanner Hydrocarbons and Accelerants Detector Operation and Maintenance www.arsondetection.com M950-ASHTM1218 © December 2018 Model 950-ASH Table of Contents Cover 1 Table of Contents 2 Top View 3 Features & Benefi ts 4 Introduction 5 Principle of Operation 6 Operation: Powering ON 7 Operation: Setting the Sensitivity 8 Operation: Detecting Hycrocarbons / Accelerants 9-10 Operation: Purging the Sensor 11 Principle of Operation for Ultraviolet and White LED Arrays 12 How Ultraviolet Light is Used in Arson Investigations 13-15 Recommended Investigation Techniques 16 Storage and Maintenance 17 Removal / Replacement of Sensor 18-19 Battery Run Time & Battery Charging 20 Troubleshooting 21 Hydrocarbon, Accelerants, and Gases Detected by Model 950-ASH 22 Model 950-ASH Warranty Information 23 WARNING!! - Model 950-ASH Should Not Be Used To Detect Carbon Monoxide! Page 2 Model 950-ASH Top View Telescoping Sensor and Probe Locking LED Arrays Clips Quick Start Analog Meter Guide Sensor Display Guard Power Indicator Mute Indicator Mute Switch Audio Sound Coiled Extension Cord High/Low Range Switch Port Power On/Off and Detection Range Control Hydrocarbon/Accelerant Detection Indicators Meter Backlight Rubber Grip Indicators for Low Battery & Charging Purge Switch USB and Indicator Charging Light / UV Switch Jack and Indicator PagePage 3 Model 950-ASH Features & Benefi ts • Portable, easy to use, rugged. • Detects approximately 125 hydrocarbons and accelerants including heating gases. • High/Low Range aids in pinpointing source of high hydrocarbon/accelerant concentration. • Solid State Sensor, housed in a protective guard, with a coiled extension cord. • Audio and Visual displays indicate detection of suspect material.
    [Show full text]
  • Occupational'asthma'(HP)% Maleic%Anhydride%
    ACMT%Board%Review% Miscellaneous%Toxicants% Brandon'Wills,'DO,'FACEP,'FACMT' Fellowship%Director,%Medical%Toxicology% Department%of%Emergency%Medicine% VCU%Medical%Center% Virginia%Poison%Center% VCU TOX 2.2.10 Miscellaneous Toxicants 2.2.10.1 Acrolein 2.2.10.2 Acrylamides 2.2.10.3 Acrylates 2.2.10.4 Amines 2.2.10.5 Aniline Compounds 2.2.10.6 Azides 2.2.10.7 Bromide Compounds 2.2.10.8 Butadienes 2.2.10.9 Carbon Disulfide 2.2.10.10 Chlorates 2.2.10.11 Coal Tar Products 2.2.10.12 Diamines 2.2.10.13 Dibromochloropropane (DBCP) 2.2.10.14 Dimethylacetamide (DMAC) 2.2.10.15 Dimethylformamide (DMF) 2.2.10.16 Dinitrobenzene 2.2.10.17 Dinitrotoluene (DNT) 2.2.10.18 Epichlorohydrin 2.2.10.19 Ethylene Dibromide (EDB) 2.2.10.20 Ethylenediamine (EDA) 2.2.10.21 Fluoride Compounds 2.2.10.22 Fuels 2.2.10.23 Hexachloro-1,3-Butadiene (HCBD) 2.2.10.24 Isocyanates (eg, toluene diisocyante) 2.2.10.25 Maleic Anhydride 2.2.10.26 Mercaptans 2.2.10.27 Methylene Diamine (MDA) 2.2.10.28 Nitriles 2.2.10.29 O-Phenylenediamine (OPD) 2.2.10.30 Phosphorus/phosphides 2.2.10.31 Phthalates 2.2.10.32 Polymers 2.2.10.33 Resins 2.2.10.34 Styrene 2.2.10.35 Trimellitic Anhydride 2.2.10.36 Triorthocresylphosphate (TOCP) 2.2.10.37 Xylidine Our%Gameplan% Organize%your%memory% Using%study%aids%(quick%look%at%flashcards)% 60%min:%brief%reviewP%focus%on%test%rather%than%content%% 20%min:%Miscellaneous+Toxicants+Jeopardy%overview% Sources% Dr.%Sean%Bryant% Dr.%Mike%Greenburg% Sullivan,%2nd%Ed% Greenburg,%2nd%Ed% My%board%review%notes% http://pubchem.ncbi.nlm.nih.gov/%(structures)%
    [Show full text]
  • F-500 Project
    Introduction This project was undertaken to address concerns encountered in the field by fire investigators and Accelerant Detection Canine Teams in relation to the potential of ignitable liquid “masking” properties of certain fire suppression additives. As modern fire suppression tactics evolve, certain chemical additives are commonly being introduced into the extinguishment phase of fire department operations. The introduction of these chemical additives present a concern to the fire investigation community relative to their potential affect on the forensic investigation of a fires cause, where factors relative to the fires ignition and spread may rely on the identification or confirmation of ignitable liquid residues as often relied upon to identify the use of an accelerant in an intentionally set fire. Today’s fire and arson investigators have many resources available to them to better pinpoint the origin and cause of a fire. One of those resources includes the use of a certified accelerant detection K9 team. This team is a valuable tool in identifying the presence of ignitable liquids through the use of their keen olfactory senses. For detection to be possible the K9 Team, much like the forencic laboratory Analyst, rely on the presence of ignitable liquid vapor residue in or on substrate materials left after a fire occurs. The concern over the use of a suppression additive focuses on its potential to mask or chemically alter the ignitable liquid to a state K9 Shadow making a positive indication which would inhibit the canine or crime laboratory from for ignitable liquid in Arson Bureau test identifying the presence of the original ignitable liquid in facility.
    [Show full text]
  • High-Performance Ceramic/Epoxy Composite Adhesives Enabled by Rational Ceramic Bandgaps J
    www.nature.com/scientificreports OPEN High-performance ceramic/epoxy composite adhesives enabled by rational ceramic bandgaps J. B. Hu High over-all properties, including low dielectric loss, high breakdown strength, high mechanical shock strength, high thermal conductivity and high weight stability, are very difcult to simultaneously achieve in electrical-insulation applicable cured potting-adhesive materials. To deal with this challenge, in this work, we have designed and fabricated a series of epoxy based composite potting-adhesives flled with low-cost and high-performance inorganic micro-particles including alpha-silica, alpha- alumina and alpha-SiC. Combination employment of high-molecular-weight and low-molecular-weight epoxy resins as matrices has been made. Heat-induced curing or crosslink of resin matrices has been carried out. Large band gap of silica fller has endowed the cured composite with high breakdown strength and ageing breakdown strength, and meanwhile relatively high deformation trait of silica has led to high shock strength of cured composite. Silica fller has been found to be superior to other two fllers, namely, optimal over-all properties such as dielectric, breakdown, mechanical and thermal features have been obtained in silica flled cured composite. High breakdown strength of ~48 MV m−1 and shock strength of ~9950 J m−2 have been achieved in silica loaded composite. This work might open up the way for large-scale fabrication of promising epoxy-based hybrid potting-adhesives. Recently, potting adhesive materials with promising electrical, mechanical and thermal properties have triggered general attention and research interest in the feld of fabricating aerospace applicable special power supplies1.
    [Show full text]
  • Analysis of the Tracheal Contents Using Headspace Gas Chromatography-Mass Spectrometry to Screen for Accelerant Use
    ANALYSIS OF THE TRACHEAL CONTENTS USING HEADSPACE GAS CHROMATOGRAPHY-MASS SPECTROMETRY TO SCREEN FOR ACCELERANT USE Nobuyuki Adachi* **, Hiroshi Kinoshita*, Minori Nishiguchi*, Motonori Takahashi*, Harumi Ouchi*, Taka- ko Minami*, Kiyoshi Matsui*, Takehiko Yamamura*, Hiroyuki Motomura***, Nao Ohtsu*, Shie Yoshida*, Kiyoshi Ameno**** and Shigeru Hishida* *Department of Legal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan **Joint –Use Research facilities, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan ***Forensic Science Laboratory, Hyogo Prefectural Police Headquarters, 4-1, Shimoyamate -dori 5-chome, Chuo-ku, Kobe, 650-8510, Japan ****Department of Forensic Medicine, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki, Kita, Kagawa, 761-0793, Japan Summary We describe here the usefulness of analysis of tracheal contents in a case of death by fire, which revealed that the deceased had used the accelerants. The analysis of tracheal contents provides useful information for the determination of the circumstances of the scene. Key words: burning – accelerants, gas chromatography – mass spectrometry – alipathic hydrocarbons Souhrn Analýza obsahu průdušnice plynovou chromatografií rovnovážné plynné fáze – hmotnostní spektrometrií, která stanoví, zda byly použity hořlaviny Autoři poukazují na užitečnost analýzy tracheálního obsahu v případě smrti uhořením, která odhalila, že zemřelá použila hořlavinu. Analýza obsahu průdušnice poskytuje důležité informace, které umožňují stanovit okolnosti na místě činu. Klíčová slova: hoření – hořlaviny, plynová chromatografie – kvantitativní spektrometrie – alifatické uhlovodíky Soud. Lék., 54, 2008, No. 1, p. 2–3 Chromatographic separation was done in a fused–silica capillary INTRODUCTION column DB-5MS (30 m X 0.25 mm I.D., 0.25 μm film thickness) (J&W Scientific, Folsom, CA, USA).
    [Show full text]
  • The Use of Canines in Accelerant Detection That Need to Be Realised
    Use of Canines in Accelerant Detection > History Of Canine Use Page 3 > Selection and Training Page 4 > The Fire Scene Investigation Page 6 > Other Uses of these Canines Page 8 > Uses in Australia Page 10 > Case Study - “Gus” Page 10 > Limitations and Disadvantages Page 11 > > Overview of Canine Use Page 13 2 Use Of Canines In Accelerant Detection - By Emma Wagner History Accelerant is a substance which, when ignited gives rise to the rapid spread of fire. Common accelerants include petrol, kerosene, diesel fuel etc. and when found at a fire scene without logical explanation, can be proof of intent and preparation - thus good evidence to suggest arson. The use of canines to aid the detection of accelerant in a fire investigation was first proposed in the early 1980’s in the US State of Connecticut. Canines had been used successfully in the US for some time in drug detection and bomb detection and a feasibility study conducted on canines’ ability to detect accelerant suggested success in this area also. On 1st May 1986, a training program was initiated as part of a joint effort between three agencies; the Bureau of Alcohol, Tobacco and Firearms (BATF), the Connecticut State Police (CSP) and New Haven State’s Attorney Generals Office. A black female Labrador retriever, “Mattie” was obtained from the Guide Dog Foundation and was trained by the CSP. In the first 38-day period Mattie was trained to detect various odours associated with flammable liquids. As the training progressed, Mattie was able to detect these odours at very low levels, and tests proved that she could identify 17 different odours.
    [Show full text]
  • United States Patent (19) 11 Patent Number: 6,071,994 Hummerich Et Al
    US00607 1994A United States Patent (19) 11 Patent Number: 6,071,994 Hummerich et al. (45) Date of Patent: Jun. 6, 2000 54) FORMALDEHYDE-FREE AQUEOUS 5,427,587 6/1995 Arkens et al.. BNDERS 5,536,766 7/1996 Seyffer et al. .......................... 524/100 5,661,213 8/1997 Arkens et al. .......................... 524/555 (75) Inventors: Rainer Hummerich, Worms; Axel FOREIGN PATENT DOCUMENTS Kistenmacher, Ludwigshafen; Walter Denzinger, Speyer; Gunnar Schornick, O 116930 8/1984 European Pat. Off.. Neuleiningen; Bernd Reck, Grinstadt; O 445 578 9/1991 European Pat. Off.. Manfred Weber, Mannheim, all of O 583 086 2/1994 European Pat. Off.. German O 651 088 10/1994 European Pat. Off.. y 864. 151 1/1953 Germany. 73 ASSignee: BASF Aktiengesellschaft, 2217 2014450 712 10/19727/1971 Germany. Ludwigshafen, Germany 2357951 5/1975 Germany. 21 Appl. No.: 09/125,113 4408 688 9/1995 Germany. 22 PCT Filed: Feb. 19, 1997 OTHER PUBLICATIONS Patent Abstracts of Japan, vol. 014, No.220, May 10, 1990, 86 PCT No.: PCT/EP97/00770 JP Publ. No. 02 051531, Feb. 21, 1990, Appl. No.63200120, S371 Date: Aug. 18, 1998 Aug. 12, 1988, Koinuma Yasuyoshi, et al., Title: Water Soluble and Self-curing polymer and cured product thereof. S 102(e) Date: Aug. 18, 1998 Patent Abstracts of Japan, vol. 005, No. 180, Nov. 19, 1981, 87 PCT Pub. No.: WO97/31036 JPPubl. No. 56 104905, Aug. 21, 1981, Chino yasuyoshi, et y - - - al, Title: Production of Novel Modified Resin, Appl. No. PCT Pub. Date: Aug. 28, 1997 55008500, Jan. 28, 1980. 30 Foreign Application Priority Data Primary Examiner Edward J.
    [Show full text]
  • Taking a Bite out of Forensic Science: the Misuse of Accelerant-Detecting Dogs in Arson Cases, 48 J
    UIC Law Review Volume 48 Issue 4 Article 7 2015 Taking a Bite Out of Forensic Science: The Misuse of Accelerant- Detecting Dogs in Arson Cases, 48 J. Marshall L. Rev. 1149 (2015) Andrew Scott Follow this and additional works at: https://repository.law.uic.edu/lawreview Part of the Animal Law Commons, Criminal Law Commons, and the Evidence Commons Recommended Citation Andrew Scott, Taking a Bite Out of Forensic Science: The Misuse of Accelerant-Detecting Dogs in Arson Cases, 48 J. Marshall L. Rev. 1149 (2015) https://repository.law.uic.edu/lawreview/vol48/iss4/7 This Comments is brought to you for free and open access by UIC Law Open Access Repository. It has been accepted for inclusion in UIC Law Review by an authorized administrator of UIC Law Open Access Repository. For more information, please contact [email protected]. TAKING A BITE OUT OF FORENSIC SCIENCE: THE MISUSE OF ACCELERANT- DETECTING DOGS IN ARSON CASES ANDREW SCOTT* I. THE PROBLEM ............................................................... 1149 II. AN INTRODUCTION TO FORENSIC SCIENCE AND ARSON INVESTIGATION .............................................................. 1151 A. Forensic Science .....................................................1151 B. Scientific Evidence in the Courtroom ...................1152 C. Arson Investigation and the Use of Accelerant- Detecting Canines ..................................................1154 D. The Emergence of Junk Science ............................1159 III. THE SCIENCE BEHIND ARSON INVESTIGATION AND THE ROLE OF CANINE HANDLER TEAMS ............................... 1161 A. Subjectivity of Fire-Pattern Analysis and other Arson Indicators ................................................................1161 B. False Alerts and Handler Bias among Canine Handler Teams ......................................................................1163 C. Improper Use of the Canine Handler Team and the Wrongful Conviction of James Hebshie ................1166 D. The Dilemma of Unconfirmed Accelerant Alerts .1167 IV.
    [Show full text]
  • Fire Service Resource Directory 2018/2019
    Department of Fire Services Executive Office of Public Safety & Security Fire Service Resource Directory 2018/2019 Compiled as a Public Service in Cooperation with the Massachusetts Property Insurance Underwriting Association Mission Statement The mission of the Department of Fire Services is, through coordinated training, education, prevention, investigation, and emergency response, to provide the citizens of Massachusetts with the ability to create safer communities; to assist and support the fire service community in the protection of life and property; to promote and enhance firefighter safety; and to provide a fire service leadership presence in the Executive Office of Public Safety and Security in order to direct policy and legislation on all fire related matters. I am pleased to forward to you the 2018-2019 Massachusetts Fire Service Resource Directory which is provided as a public service to our fire service constituency I would take this opportunity as well to thank one of our true partners, the Massachusetts Property Insurance Underwriting Association and their president, Mr. John K. Golembeski, for working on statewide fire prevention programs with the Department of Fire Services over the years and for providing the resources to publish this directory Peter J Ostroskey State Fire Marshal Department of Fire Services 978-567-3100 See division listings for fax numbers www.mass.gov/dfs Stow Campus Springfield Campus P O Box 1025 - State Road 100 Grochmal Avenue Stow, MA 01775 Springfield, MA 01151 Contents Directions to the Department of Fire Services ............................................... 2 Quick Reference Numbers .............................................................. .. .. ................. 4 Emergency Resource Activation ......................................... .......................... ...... 5 Fire & Explosion Investigation Section .. .. .................. .. .... ................. .. ...... .... ......................... S Hazardous Materials Response Teams ....
    [Show full text]
  • GC-MS) Published Online: Rl ATF 1------I March 2018 Authority: Technical Leader
    ATF-LS-FD1 Gas Chromatography-Mass Spectrometry (GC-MS) Published Online: rl ATF 1---------------i March 2018 Authority: Technical Leader Unofficial Copy; May Not Be Most Current Version Page: 1 of 5 I. Scope: This policy and procedure guideline establishes a standard method for identification and classification of ignitable liquids and their residues extracted from fire debris by Gas Chromatography-Mass Spectrometry (GC-MS). II. References: 1.ASTM E1618 Standard Guide for Ignitable Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography-Mass Spectrometry. 2.Newman, R., Gilbert, M. and Lothridge, K. “GC-MS Guide to Ignitable Liquids,” CRC Press 1998. 3.Smith, R. M., Analytical Chemistry, Vol. 54, No. 13, November 1982, pp 1399A-1409A. 4.Nowicki, J., “An Accelerant Classification Scheme based on Analysis by Gas Chromatography-Mass Spectrometry (GC-MS),” Journal of Forensic Science, Volume 35(5) pp. 1064-1086. 5.Smith, R. M., “Mass Chromatographic Analysis of Arson Accelerants,” Journal of Forensic Science Vol. 28(2), pp 318-329. 6.Gas Chromatograph-Mass Spectrometer Maintenance and Troubleshooting Manual 7.Instrument Hardware Manual III. Apparatus/Reagents: A gas chromatograph-mass spectrometer with the following features: Gas Chromatograph: • Capable of using capillary columns and being interfaced to a mass spectrometer. • Sample Inlet System that can be operated in either split or splitless mode with capillary columns • A capillary, bonded phase, methylsilicone column or equivalent column • A column oven capable of reproducible temperature program operation in the range from 30 to 300°C Mass Spectrometer: • Capable of scanning between 20 and 600 m/z with unit resolution or better, with continuous data output.
    [Show full text]