November 2021 | LCGC North America

Full Method Validation Is Still a Glaring Deficiency in Many Forensics Laboratories

November 01, 2021

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Method validation processes will need to be refined to better suit forensic laboratories.

Determination of Fipronil and Its Metabolites in Eggs and Environmental Matrices by LC–MS/MS

November 01, 2021

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An improved LC–MS/MS method that can rapidly detect fipronil, an insecticide harmful to human health, is presented here for chicken eggs, feed, and soil.

Intact Mass Analysis of Biopharmaceuticals as its Own Unique Application

November 01, 2021

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Intact mass analysis is becoming increasingly useful for characterizing biologics. We describe the current application of intact mass analysis, including quantitation, sequencing, and structural characterization.

Putting the Sample into Sample Preparation

November 01, 2021

Column: Sample Prep Perspectives

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We explore the aspects of sampling that are of highest importance in an analytical scheme. Devices and processes for obtaining appropriate samples outside of the laboratory are presented.

Gifts for the Gas Chromatograph Owner Who Has Everything

November 01, 2021

Column: GC Connections

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Gas chromatographers may not have the latest equipment they need. Here, we give a list of tools and consumables that can help make workflows more efficient, detection limits lower, and GC instruments cleaner.

But My Peaks Are Not Gaussian! Part III: Physicochemical Causes of Peak Tailing

November 01, 2021

Columns

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What leads to an asymmetric peak shape? Physiochemical phenomena can help chromatographers identify whether the cause of asymmetry has a chemical or physical origin.