Geochemistry Guide 2020 the Foundation of Project Success
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Analytical Techniques Used for Elemental Analysis in Various Matrices
Helaluddin et al Tropical Journal of Pharmaceutical Research February 2016; 15 (2): 427-434 ISSN: 1596-5996 (print); 1596-9827 (electronic) © Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, 300001 Nigeria. All rights reserved. Available online at http://www.tjpr.org http://dx.doi.org/10.4314/tjpr.v15i2.29 Review Article Main Analytical Techniques Used for Elemental Analysis in Various Matrices ABM Helaluddin1, Reem Saadi Khalid1, Mohamed Alaama and Syed Atif Abbas2 1Analytical and Bio-Analytical Research Laboratory, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, International Islamic University Malaysia (IIUM), Jalan Istana, Bandar Indera Mahkota, 25200 Kuantan, Pahang, 2 Malaysia School of Pharmacy, Taylors University, 1 Jalan Taylor’s, 47500 Subang Jaya, Selangor Darul Ehsan, Malaysia *For correspondence: Email: [email protected]; [email protected] Received: 20 August 2015 Revised accepted: 4 January 2016 Abstract Heavy metal pollution is a serious environmental problem. The presence of such metals in different areas of an ecosystem subsequently leads to the contamination of consumable products such as dietary and processed materials. Accurate monitoring of metal concentrations in various samples is of importance in order to minimize health hazards resulting from exposure to such toxic substances. For this purpose, it is essential to have a general understanding of the basic principles for different methods of elemental analysis. This article provides an overview of the most sensitive -
Geochemistry - (2021-2022 Catalog) 1
Geochemistry - (2021-2022 Catalog) 1 GEGN586 NUMERICAL MODELING OF GEOCHEMICAL 3.0 Geochemistry SYSTEMS GEOL512 MINERALOGY AND CRYSTAL CHEMISTRY 3.0 Degrees Offered GEOL513 HYDROTHERMAL GEOCHEMISTRY 3.0 • Master of Science (Geochemistry) GEOL523 REFLECTED LIGHT AND ELECTRON 2.0 MICROSCOPY * • Doctor of Philosophy (Geochemistry) GEOL535 LITHO ORE FORMING PROCESSES 1.0 • Certificate in Analytical Geochemistry GEOL540 ISOTOPE GEOCHEMISTRY AND 3.0 • Professional Masters in Analytical Geochemistry (non-thesis) GEOCHRONOLOGY • Professional Masters in Environmental Geochemistry (non-thesis) GEGN530 CLAY CHARACTERIZATION 2.0 Program Description GEGX571 GEOCHEMICAL EXPLORATION 3.0 The Graduate Program in Geochemistry is an interdisciplinary program * Students can add one additional credit of independent study with the mission to educate students whose interests lie at the (GEOL599) for XRF methods which is taken concurrently with intersection of the geological and chemical sciences. The Geochemistry GEOL523. Program consists of two subprograms, administering two M.S. and Ph.D. degree tracks, two Professional Master's (non-thesis) degree programs, Master of Science (Geochemistry degree track) students must also and a Graduate Certificate. The Geochemistry (GC) degree track pertains complete an appropriate thesis, based upon original research they have to the history and evolution of the Earth and its features, including but not conducted. A thesis proposal and course of study must be approved by limited to the chemical evolution of the crust and -
Organic Geochemistry
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by ZENODO Organic Geochemistry Organic Geochemistry 37 (2006) 1–11 www.elsevier.com/locate/orggeochem Review Organic geochemistry – A retrospective of its first 70 years q Keith A. Kvenvolden * U.S. Geological Survey, 345 Middlefield Road, MS 999, Menlo Park, CA 94025, USA Institute of Marine Sciences, University of California, Santa Cruz, CA 95064, USA Received 1 September 2005; accepted 1 September 2005 Available online 18 October 2005 Abstract Organic geochemistry had its origin in the early part of the 20th century when organic chemists and geologists realized that detailed information on the organic materials in sediments and rocks was scientifically interesting and of practical importance. The generally acknowledged ‘‘father’’ of organic geochemistry is Alfred E. Treibs (1899–1983), who discov- ered and described, in 1936, porphyrin pigments in shale, coal, and crude oil, and traced the source of these molecules to their biological precursors. Thus, the year 1936 marks the beginning of organic geochemistry. However, formal organiza- tion of organic geochemistry dates from 1959 when the Organic Geochemistry Division (OGD) of The Geochemical Soci- ety was founded in the United States, followed 22 years later (1981) by the establishment of the European Association of Organic Geochemists (EAOG). Organic geochemistry (1) has its own journal, Organic Geochemistry (beginning in 1979) which, since 1988, is the official journal of the EAOG, (2) convenes two major conferences [International Meeting on Organic Geochemistry (IMOG), since 1962, and Gordon Research Conferences on Organic Geochemistry (GRC), since 1968] in alternate years, and (3) is the subject matter of several textbooks. -
W. M. White Geochemistry Chapter 5: Kinetics
W. M. White Geochemistry Chapter 5: Kinetics CHAPTER 5: KINETICS: THE PACE OF THINGS 5.1 INTRODUCTION hermodynamics concerns itself with the distribution of components among the various phases and species of a system at equilibrium. Kinetics concerns itself with the path the system takes in T achieving equilibrium. Thermodynamics allows us to predict the equilibrium state of a system. Kinetics, on the other hand, tells us how and how fast equilibrium will be attained. Although thermo- dynamics is a macroscopic science, we found it often useful to consider the microscopic viewpoint in developing thermodynamics models. Because kinetics concerns itself with the path a system takes, what we will call reaction mechanisms, the microscopic perspective becomes essential, and we will very often make use of it. Our everyday experience tells one very important thing about reaction kinetics: they are generally slow at low temperature and become faster at higher temperature. For example, sugar dissolves much more rapidly in hot tea than it does in ice tea. Good instructions for making ice tea might then incor- porate this knowledge of kinetics and include the instruction to be sure to dissolve the sugar in the hot tea before pouring it over ice. Because of this temperature dependence of reaction rates, low tempera- ture geochemical systems are often not in equilibrium. A good example might be clastic sediments, which consist of a variety of phases. Some of these phases are in equilibrium with each other and with porewater, but most are not. Another example of this disequilibrium is the oceans. The surface waters of the oceans are everywhere oversaturated with respect to calcite, yet calcite precipitates from sea- water only through biological activity. -
Why the Gas Chromatographic Separation Method Used in the Thermo Scientific Flashsmart Elemental Analyzer Is the Most Reliable for Elemental Analysis?
FlashSmart Elemental Analyzer SmartNotes Why the gas chromatographic separation method used in the Thermo Scientific FlashSmart Elemental Analyzer is the most reliable for elemental analysis? The Thermo Scientific™ FlashSmart™ Elemental Analyzer (Figure 1) operates with the dynamic flash combustion (modified Dumas Method) of the sample for CHNS determination while for oxygen analysis, the system operates in pyrolysis mode. The resulted gases are carried by a helium (or argon) flow till a gas chromatographic column that provides the separation of the gases, and finally, detected by a thermal conductivity detector (TCD). A complete report is automatically generated by the Thermo Scientific™ EagerSmart™ Data Handling Software and displayed at the end of the analysis. Thermo Scientific FlashSmart: The Elemental Analyzer Figure 1. Thermo Scientific FlashSmart Elemental Analyzer. The gas chromatography IC (GC) provides a “real” picture The advantages of the separation method are: of the analytical process during combustion (CHNS) and pyrolysis (O). • “Real” peak of each element. • Easy integration of the peaks by the EagerSmart Data GC technique provides you with complete peak Handling Software. separation and sharp peak shapes, which ensure superior precision and higher sensitivity. • The area of the peak corresponds to the total amount of the element. From the chromatogram you can quantify the amount • Proper quantification of the elements. of elements in your sample and recognize what it is happening inside the analyzer anytime. GC separation • Maintenance free, long lifetime GC column operating features provide you with: for years without the need for replacement: it is not a consumable. • Full insight of the combustion showing complete • GC Column easy to use, directly installed in the analyzer conversion of: • Straightforward continuous flow design from sample – Nitrogen and nitrogen oxide in N 2 processing through gas separation and detection. -
Stark Broadening Measurements in Plasmas Produced by Laser Ablation of Hydrogen Containing Compounds Miloš Burger, Jorg Hermann
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Archive Ouverte en Sciences de l'Information et de la Communication Stark broadening measurements in plasmas produced by laser ablation of hydrogen containing compounds Miloš Burger, Jorg Hermann To cite this version: Miloš Burger, Jorg Hermann. Stark broadening measurements in plasmas produced by laser ablation of hydrogen containing compounds. Spectrochimica Acta Part B: Atomic Spectroscopy, Elsevier, 2016, 122, pp.118-126. 10.1016/j.sab.2016.06.005. hal-02348424 HAL Id: hal-02348424 https://hal.archives-ouvertes.fr/hal-02348424 Submitted on 5 Nov 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Stark broadening measurements in plasmas produced by laser ablation of hydrogen containing compounds Milosˇ Burgera,∗,Jorg¨ Hermannb aUniversity of Belgrade, Faculty of Physics, POB 44, 11000 Belgrade, Serbia bLP3, CNRS - Aix-Marseille University, 13008 Marseille, France Abstract We present a method for the measurement of Stark broadening parameters of atomic and ionic spectral lines based on laser ablation of hydrogen containing compounds. Therefore, plume emission spectra, recorded with an echelle spectrometer coupled to a gated detector, were compared to the spectral radiance of a plasma in local thermal equi- librium. -
Research Article LITHIUM TETRABORATE PRODUCTION from the REACTION of BORIC ACID and LITHIUM CARBONATE USING CARBON DIOXIDE Ali Y
Sigma J Eng & Nat Sci 38 (3), 2020, 1121-1132 Sigma Journal of Engineering and Natural Sciences Sigma Mühendislik ve Fen Bilimleri Dergisi Research Article LITHIUM TETRABORATE PRODUCTION FROM THE REACTION OF BORIC ACID AND LITHIUM CARBONATE USING CARBON DIOXIDE Ali YALÇIN1, Mehmet GÖNEN*2 1Süleyman Demirel University, Dept. of Chemical Engineering, ISPARTA; ORCID: 0000-0002-8722-4159 2Süleyman Demirel University, Dept. of Chemical Engineering, ISPARTA; ORCID: 0000-0001-5780-4622 Received: 26.02.2020 Revised: 30.03.2020 Accepted: 22.05.2020 ABSTRACT In this study, the synthesis of lithium tetraborate in the presence of carbon dioxide (CO2) in an aqueous phase was investigated. A two-step process has been developed in the present study. The first step includes an aqueous phase reaction of lithium carbonate and boric acid in the presence of CO2 at different pressures. The second step involves the crystallization and thermal treating of the product obtained from step one at the temperatures between 300 and 400°C for 1 hour. Characterizations of the samples were performed by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Thermogravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM). It was characterized that amorphous lithium tetraborate of Li2B4O7.3H2O was synthesized in the first step and then it was converted into Li2B4O7 in the second step. The use of CO2 as a modifying agent in lithium tetraborate synthesis has enhanced the dissolution rate of reactants that induced a fast-aqueous phase reaction. Keywords: Lithium tetraborate, boric acid, CO2, lithium carbonate, two-step process. 1. INTRODUCTION Lithium borates are important compounds that are used as specialty chemicals in the industry. -
2020 Language Need and Interpreter Use Study, As Required Under Chair, Executive and Planning Committee Government Code Section 68563 HON
JUDICIAL COUNCIL OF CALIFORNIA 455 Golden Gate Avenue May 15, 2020 San Francisco, CA 94102-3688 Tel 415-865-4200 TDD 415-865-4272 Fax 415-865-4205 www.courts.ca.gov Hon. Gavin Newsom Governor of California HON. TANI G. CANTIL- SAKAUYE State Capitol, First Floor Chief Justice of California Chair of the Judicial Council Sacramento, California 95814 HON. MARSHA G. SLOUGH Re: 2020 Language Need and Interpreter Use Study, as required under Chair, Executive and Planning Committee Government Code section 68563 HON. DAVID M. RUBIN Chair, Judicial Branch Budget Committee Chair, Litigation Management Committee Dear Governor Newsom: HON. MARLA O. ANDERSON Attached is the Judicial Council report required under Government Code Chair, Legislation Committee section 68563, which requires the Judicial Council to conduct a study HON. HARRY E. HULL, JR. every five years on language need and interpreter use in the California Chair, Rules Committee trial courts. HON. KYLE S. BRODIE Chair, Technology Committee The study was conducted by the Judicial Council’s Language Access Hon. Richard Bloom Services and covers the period from fiscal years 2014–15 through 2017–18. Hon. C. Todd Bottke Hon. Stacy Boulware Eurie Hon. Ming W. Chin If you have any questions related to this report, please contact Mr. Douglas Hon. Jonathan B. Conklin Hon. Samuel K. Feng Denton, Principal Manager, Language Access Services, at 415-865-7870 or Hon. Brad R. Hill Ms. Rachel W. Hill [email protected]. Hon. Harold W. Hopp Hon. Hannah-Beth Jackson Mr. Patrick M. Kelly Sincerely, Hon. Dalila C. Lyons Ms. Gretchen Nelson Mr. -
RELG 357D1 Sanskrit 2, Fall 2020 Syllabus
RELG 357D1: Sanskrit 2 Fall 2020 McGill University School of Religious Studies Tuesdays & Thursdays, 10:05 – 11:25 am Instructor: Hamsa Stainton Email: [email protected] Office hours: by appointment via phone or Zoom Note: Due to COVID-19, this course will be offered remotely via synchronous Zoom class meetings at the scheduled time. If students have any concerns about accessibility or equity please do not hesitate to contact me directly. Overview This is a Sanskrit reading course in which intermediate Sanskrit students will prepare translations of Sanskrit texts and present them in class. While the course will review Sanskrit grammar when necessary, it presumes students have already completed an introduction to Sanskrit grammar. Readings: All readings will be made available on myCourses. If you ever have any issues accessing the readings, or there are problems with a PDF, please let me know immediately. You may also wish to purchase or borrow a hard copy of Charles Lanman’s A Sanskrit Reader (1884) for ease of reference, but the ebook will be on myCourses. The exact reading on a given day will depend on how far we progressed in the previous class. For the first half of the course, we will be reading selections from the Lanman’s Sanskrit Reader, and in the second half of the course we will read from the Bhagavadgītā. Assessment and grading: Attendance: 20% Class participation based on prepared translations: 20% Test #1: 25% Test #2: 35% For attendance and class participation, students are expected to have prepared translations of the relevant Sanskrit text. -
Chapter 8: Gravimetric Methods
Chapter 8 Gravimetric Methods Chapter Overview 8A Overview of Gravimetric Methods 8B Precipitation Gravimetry 8C Volatilization Gravimetry 8D Particulate Gravimetry 8E Key Terms 8F Chapter Summary 8G Problems 8H Solutions to Practice Exercises Gravimetry includes all analytical methods in which the analytical signal is a measurement of mass or a change in mass. When you step on a scale after exercising you are making, in a sense, a gravimetric determination of your mass. Mass is the most fundamental of all analytical measurements, and gravimetry is unquestionably our oldest quantitative analytical technique. The publication in 1540 of Vannoccio Biringuccio’sPirotechnia is an early example of applying gravimetry—although not yet known by this name—to the analysis of metals and ores.1 Although gravimetry no longer is the most important analytical method, it continues to find use in specialized applications. 1 Smith, C. S.; Gnodi, M. T. translation of Biringuccio, V. Pirotechnia, MIT Press: Cambridge, MA, 1959. 355 356 Analytical Chemistry 2.0 8A Overview of Gravimetric Methods Before we consider specific gravimetric methods, let’s take a moment to develop a broad survey of gravimetry. Later, as you read through the de- scriptions of specific gravimetric methods, this survey will help you focus on their similarities instead of their differences. You will find that it is easier to understand a new analytical method when you can see its relationship to other similar methods. 8A.1 Using Mass as an Analytical Signal Method 2540D in Standard Methods for Suppose you are to determine the total suspended solids in the water re- the Examination of Waters and Wastewaters, leased by a sewage-treatment facility. -
The What and Why of Whole Number Arithmetic: Foundational Ideas from History, Language and Societal Changes
Portland State University PDXScholar Mathematics and Statistics Faculty Fariborz Maseeh Department of Mathematics Publications and Presentations and Statistics 3-2018 The What and Why of Whole Number Arithmetic: Foundational Ideas from History, Language and Societal Changes Xu Hu Sun University of Macau Christine Chambris Université de Cergy-Pontoise Judy Sayers Stockholm University Man Keung Siu University of Hong Kong Jason Cooper Weizmann Institute of Science SeeFollow next this page and for additional additional works authors at: https:/ /pdxscholar.library.pdx.edu/mth_fac Part of the Science and Mathematics Education Commons Let us know how access to this document benefits ou.y Citation Details Sun X.H. et al. (2018) The What and Why of Whole Number Arithmetic: Foundational Ideas from History, Language and Societal Changes. In: Bartolini Bussi M., Sun X. (eds) Building the Foundation: Whole Numbers in the Primary Grades. New ICMI Study Series. Springer, Cham This Book Chapter is brought to you for free and open access. It has been accepted for inclusion in Mathematics and Statistics Faculty Publications and Presentations by an authorized administrator of PDXScholar. Please contact us if we can make this document more accessible: [email protected]. Authors Xu Hu Sun, Christine Chambris, Judy Sayers, Man Keung Siu, Jason Cooper, Jean-Luc Dorier, Sarah Inés González de Lora Sued, Eva Thanheiser, Nadia Azrou, Lynn McGarvey, Catherine Houdement, and Lisser Rye Ejersbo This book chapter is available at PDXScholar: https://pdxscholar.library.pdx.edu/mth_fac/253 Chapter 5 The What and Why of Whole Number Arithmetic: Foundational Ideas from History, Language and Societal Changes Xu Hua Sun , Christine Chambris Judy Sayers, Man Keung Siu, Jason Cooper , Jean-Luc Dorier , Sarah Inés González de Lora Sued , Eva Thanheiser , Nadia Azrou , Lynn McGarvey , Catherine Houdement , and Lisser Rye Ejersbo 5.1 Introduction Mathematics learning and teaching are deeply embedded in history, language and culture (e.g. -
Tai Lü / ᦺᦑᦟᦹᧉ Tai Lùe Romanization: KNAB 2012
Institute of the Estonian Language KNAB: Place Names Database 2012-10-11 Tai Lü / ᦺᦑᦟᦹᧉ Tai Lùe romanization: KNAB 2012 I. Consonant characters 1 ᦀ ’a 13 ᦌ sa 25 ᦘ pha 37 ᦤ da A 2 ᦁ a 14 ᦍ ya 26 ᦙ ma 38 ᦥ ba A 3 ᦂ k’a 15 ᦎ t’a 27 ᦚ f’a 39 ᦦ kw’a 4 ᦃ kh’a 16 ᦏ th’a 28 ᦛ v’a 40 ᦧ khw’a 5 ᦄ ng’a 17 ᦐ n’a 29 ᦜ l’a 41 ᦨ kwa 6 ᦅ ka 18 ᦑ ta 30 ᦝ fa 42 ᦩ khwa A 7 ᦆ kha 19 ᦒ tha 31 ᦞ va 43 ᦪ sw’a A A 8 ᦇ nga 20 ᦓ na 32 ᦟ la 44 ᦫ swa 9 ᦈ ts’a 21 ᦔ p’a 33 ᦠ h’a 45 ᧞ lae A 10 ᦉ s’a 22 ᦕ ph’a 34 ᦡ d’a 46 ᧟ laew A 11 ᦊ y’a 23 ᦖ m’a 35 ᦢ b’a 12 ᦋ tsa 24 ᦗ pa 36 ᦣ ha A Syllable-final forms of these characters: ᧅ -k, ᧂ -ng, ᧃ -n, ᧄ -m, ᧁ -u, ᧆ -d, ᧇ -b. See also Note D to Table II. II. Vowel characters (ᦀ stands for any consonant character) C 1 ᦀ a 6 ᦀᦴ u 11 ᦀᦹ ue 16 ᦀᦽ oi A 2 ᦰ ( ) 7 ᦵᦀ e 12 ᦵᦀᦲ oe 17 ᦀᦾ awy 3 ᦀᦱ aa 8 ᦶᦀ ae 13 ᦺᦀ ai 18 ᦀᦿ uei 4 ᦀᦲ i 9 ᦷᦀ o 14 ᦀᦻ aai 19 ᦀᧀ oei B D 5 ᦀᦳ ŭ,u 10 ᦀᦸ aw 15 ᦀᦼ ui A Indicates vowel shortness in the following cases: ᦀᦲᦰ ĭ [i], ᦵᦀᦰ ĕ [e], ᦶᦀᦰ ăe [ ∎ ], ᦷᦀᦰ ŏ [o], ᦀᦸᦰ ăw [ ], ᦀᦹᦰ ŭe [ ɯ ], ᦵᦀᦲᦰ ŏe [ ].