## Abstract A simple flow‐switching device has been designed for use as a comprehensive two‐dimensional gas chromatography modulator. The device is constructed from fused silica tubing, t‐unions, and a solenoid valve. A series of experiments were conducted to determine the influence of primary flow
Modulator Design for Comprehensive Two-Dimensional Gas Chromatography: Quantitative Analysis of Polyaromatic Hydrocarbons and Polychlorinated Biphenyls
✍ Scribed by Hyötyläinen, Tuulia; Kallio, Minna; Hartonen, Kari; Jussila, Matti; Palonen, Sami; Riekkola, Marja-Liisa
- Book ID
- 126184399
- Publisher
- American Chemical Society
- Year
- 2002
- Tongue
- English
- Weight
- 168 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0003-2700
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Fast miniaturised sample preparation for the screening and comprehensive two-dimensional gas chromatographic determination of polychlorinated biphenyls in sludge Polychlorinated biphenyls (PCBs) in sludge are usually extracted by a technique such as Soxhlet with subsequent fractionation prior to lon
## Abstract The modulation system in a comprehensive two‐dimensional gas chromatograph (GC×GC) can be regarded to be the heart of the analyzer. Different ways of modulating the effluent of the first column into very narrow pulses and injecting these onto the fast second column have been demonstrate