Abstract Comparison of five methods for calculating gas chromatographic peaks (disc
integration, triangulation, peak height× width at half height, Rt× peak height, and peak …

The electron capture detector has long been employedin the analysis of chlorinated
hydrocarbon pesticides. Its high sensitivity and excellent selectivity have made it the detector …

Gas-liquid chromatography provides a method of extreme sensitivity for the detection and
determination of organochlorine pesticides residues. A single retention-time cannot …

Although gas chromatography is associated with the determination of pesticide residues, the
technique is also useful for analysis of commercial pesticide formulations. For 0.1—2.0% test …

The experienced residue analyst is quite familiar with the indecisive and continuum-type
curve produced by the pesticide toxaphene (a mixture of compounds described as" …

A chromous chloride reaction followed by GLC analysis is described for the simultaneous
confirmation of heptachlor and endrin residues. This procedure constitutes a convenient …

Conditions have been experimentally worked out for most efficient operation of the electron
capture gas chromatograph, with the objective of routinely determining 0.01 ppm of residues …

JOURNAL OF THE AOAC (Vol. 51, No. 6, 1968) mixture) on a macro scale resulted in a
mixture of two products, which were separated and characterized by physical methods …

Abstract DC-200 and QF-1 have been combined as the liquid phase in a GLC column to
give a different elution of pesticides from the nonpolar methyl silicones now in wide use. The …

A new approach has been developed for the simultaneous confirmation of DDT-type
compounds, chlordanes, heptachlor, and heptachlor epoxide. Derivatives are formed by a …