Development of Gas Chromatography Instruments at Shimadzu

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.

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In a continuation of our Inside the Laboratory interview with Chris Reddy, we asked him about the recent documentary, “Out of Plain Sight,” that featured him and his team’s research.

In the second part of this edition of “Inside the Laboratory,” Christopher Reddy of Wood Hole Oceanographic Institution discusses why comprehensive two-dimensional gas chromatography is the optimal technique for investigating complex mixtures of organic chemicals in the environment.

In this edition of “Inside the Laboratory,” Christopher Reddy of Wood Hole Oceanographic Institution discusses his laboratory’s work investigating oil spills and uncovering dichlorodiphenyltrichloroethane (DDT) deposits on the ocean floor. This interview is part one of three of our conversation with Reddy.

LCGC International sat down with Christopher “Chris” Reddy of Woods Hole Oceanographic Institution, whose research was the basis for a recently released documentary.