Substrates Containing Silver Nitrate for Gas Chromatography.

Cook, Clarence; Stanley, Charles W.; Barney, J. E.

doi:10.1021/ac60218a040

Cited by 13 publications

(3 citation statements)

References 2 publications

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“…-O). This observation agrees with Cook, Stanley, et al (1964), for the parathion and Systox systems and for the Dimethoate system (Gudzinowicz and Campbell, 1961). Hydrolysis products are all less sensitive to the electron-capture process than their respective parents.…”

Section: Discussionsupporting

confidence: 84%

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Gas-liquid chromatographic separation of some organophosphate pesticides, their hydrolysis products, and oxons

Suffet¹,

Faust²,

Carey³

1967

Environ. Sci. Technol.

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A gas-liquid chromatographic technique has been developed to separate and detect, simultaneously, some organophosphate pesticides, their oxons, and hydrolysis products. Reoplex-400 (polypropylene glycol adipate), a polyester liquid phase, was used to separate the organophosphate systems of Diazinon, Baytex, parathion, and malathion. Two detection systems were used-flame ionization and electron-capture. Isothermal separations at 180°C. are described for individual systems of Diazinon. Baytex, and parathion. Also chromatograms and relative retention times indicate multiple analyses of these three pesticides, their hydrolysis products, malathion, and the oxons of parathion and Diazinon. Data are given under isothermal conditions which indicate the generally greater sensitivity of the electron-capture system except for the hydrolysis products of Diazinon and Baytex. The malathion system was examined with the flame ionization detector by techniques of dual isothermal analysis or programmed temperature.At present, there is an incomplete picture of the persistence l_ and fate of organophosphate pesticides in natural water environments. These pesticides have the potential of causing changes in water quality which may affect human and aquatic life. Their toxicity to fish and wildlife is well known. Breidenbach (1965) has outlined other water quality problems caused by organic pesticides.

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Section: Discussionsupporting

confidence: 84%

“…Sensitivities are reported in Table III in terms of the fundamental measure of peak area coulombs per microgram (Cook, Stanley, et al, 1964;Gudzinowicz and Clark, 1964). A disc integrator accurately measured the coulombs.…”

Section: Discussionmentioning

confidence: 99%

Gas-liquid chromatographic separation of some organophosphate pesticides, their hydrolysis products, and oxons

Suffet¹,

Faust²,

Carey³

1967

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Standard deviations for the calibrations are ±0.2 to ±0.3 volume per cent of the extractant. Detection levels of one extractant as a contaminant in another are determined. Solvent extraction has been widely applied to reprocessing spent fuel elements and resultant waste solutions 1 Present address, Iso chem Inc., Richland, Wash. using such processes as the Purex process (6) and the strontium-90 recovery program (IS). Up to the present, many of the problems concerning the solvent preparation and analysis have been treated very generally.…”

Section: Gas Chromatographic Analysis Of Solvent Used Inmentioning

confidence: 99%