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Special Issues-10-01-2017

Special Issues

Vol 35 No s10 LCGC North America October 2017 Advancing Environmental Analysis PDF

October 02, 2017

Issue PDF

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Click the title above to open the LCGC North America October 2017 Advancing Environmental Analysis, Vol 35 No s10, in an interactive PDF format.

Novel Sample Preparation and GC–MS/MS Analysis of Triclosan and Methyl Triclosan in Biosolids

October 01, 2017

Articles

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The antimicrobial triclosan is present in myriad personal care products, many of which are disposed of down household drains and travel to wastewater treatment plants. This article describes a simple and rapid method for the preparation and extraction of triclosan and methyl triclosan from the complex matrix of biosolids and paper mulch samples followed by analysis using GC–MS/MS.

Evaluating Substance Use via Wastewater Analysis: An Overview of Analytical Workflows

October 01, 2017

Articles

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Wastewater analysis has become an established approach for retrieving additional epidemiological information about the use of illicit drugs, alcohol, and tobacco at the population level. Here, we present an overview of the recent analytical frameworks and workflows for target and suspect analyses using low- and high-resolution mass spectrometry and discuss the latest advances in wastewater-based epidemiology (WBE).

Improved Analysis of Polyfluorinated Alkyl Substances in Environmental Samples Using Optimized ASTM Method 7968/7979

October 01, 2017

Articles

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This article evaluates ASTM D7979-16 for the “direct” analysis of 30 PFCs and 19 mass-labeled surrogates. Instead of using solid-phase extraction, the PFCs were solubilized in a methanol–water mix and filtered if necessary, and the sample was injected into a LC–MS/MS system.

Haloacetic Acid Analysis Using Two-Dimensional Matrix-Elimination Ion Chromatography

October 01, 2017

Articles

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The disinfectants commonly used to treat public drinking water can react with naturally occurring organic and inorganic matter in the source water to form disinfection byproducts such as haloacetic acids. Here, we describe the use of two-dimensional matrix-elimination ion chromatography (MEIC) for haloacetic acid analysis. This method minimizes the impact of matrix ions.

The Analysis of Persistent Organic Pollutants Using Pressurized Liquid Extraction and Automated Column Chromatography Sample Cleanup

October 01, 2017

Articles

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The persistent nature and toxicity of persistent organic pollutants (POPs) lead to high demands for quick and accurate sample analysis. This article describes the use of automated sample processing techniques such as pressurized liquid extraction and automated column chromatography cleanup that are suitable for environmental sample analysis.