JUNE 2018 McCampbell Analytical, Inc. "When Quality Counts"

Method Upgrade for Organic Lead Analysis

Improvements MAI is excited to announce our improved analytical method for organic lead. Powered by Include: the technical advances of the GC Triple Quadrupole Mass Spectrometer (GC-MS-MS), Lower Detection we are able to screen to lower detection limits Limits and MDLs with added selectivity compared to our superseded GC-MS single quadrupole method.

Increased In addition, MAI has also increased our Selectivity analytical capacity by designating two GC-MS- MS systems exclusively for organic lead High Volume analysis with expedited turnaround times Capacity available. Rush Turnaround All of the compliance data packages associated Times Available with this update have been performed and validated by our QA/QC department. JUNE 2018

MAI’s Tetraethyllead limits achieve MAI OPb Reporting Limits California DTSC residential soil limits of 0.003 mg/kg and Arizona Department of Water (µg/L) Soil (mg/kg) Environmental Quality soil LUST limits MDL PQL MDL PQL of 0.006 mg/kg. Tetramethyllead 0.015 0.05 0.0006 0.002 Tetraethyllead 0.028 0.05 0.0012 0.002 Organic Lead and the Petro-Fuel Industry

In the 1920’s, Tetraethyllead (TEL) was introduced to the petro-fuel industry as an automotive antiknock agent. It was selected because it was both inexpensive and highly efficient in increasing vehicle performance.

The pros of its efficacy were later outweighed by the cons of its toxicity. Numerous cases have been documented of deaths associated with exposure to lead vapors. One notable case took place in a New Jersey refinery where 17 employees died from lead poisoning.

Leaded gasoline was produced in the US for decades until the US Clean Air Act declared it banned for automotive use in 1996. In some countries, the ban wasn’t implemented until years later.

Today we are still attempting to minimize the health risks associated with the residual effects of leaded gasoline. Screening of organic lead compounds are required for sites which have used or sold leaded gasoline in the past before they are used for residential or commercial occupancy.

To find out more about pricing & turnaround times, email or call us at [email protected] / (925)-252-9262