Gas Chromatography (GC)

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Optimizing Splitless Injections in Gas Chromatography, Part II: Band Broadening and Focusing Mechanisms

February 11th 2025

In Part II of our exploration of splitless injection, we will see that it is a surprisingly complex process, and that it is difficult to understand because we cannot see what is happening during the injection process. For this discussion, we will think of the injection process as beginning with the syringe plunger being depressed and ending with the start of a temperature program in the column oven. In most splitless injections, this process requires 30 s to 1 min. There are several band broadening and focusing mechanisms that affect the peak shapes, widths, and heights resulting from splitless injection.

LCGC International 2025 New Product Review – Call For Submissions
LCGC International 2025 New Product Review – Call For Submissions

February 6th 2025

Inside the Laboratory: How Chromatography Research Shaped a Recent Documentary
Inside the Laboratory: How Chromatography Research Shaped a Recent Documentary

January 29th 2025

Inside the Laboratory: Using Comprehensive Two-Dimensional Gas Chromatography to Characterize and Quantify DDT Contamination on the Deep-Sea Floor
Inside the Laboratory: Using Comprehensive Two-Dimensional Gas Chromatography to Characterize and Quantify DDT Contamination on the Deep-Sea Floor

January 28th 2025

Inside the Laboratory: Investigating Oil Spills Using Comprehensive Two-Dimensional Gas Chromatography
Inside the Laboratory: Investigating Oil Spills Using Comprehensive Two-Dimensional Gas Chromatography

January 27th 2025

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