1970
DOI: 10.1021/jf60167a014
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Microdetermination of phosphine by gas-liquid chromatography with microcoulometric, thermionic, and flame photometric detection

Abstract: Microcoulometric, thermionic, and flame photometric (phosphorus mode) detectors used with GLC were compared for minimum detectability, accuracy, reproducibility, and rapidity for the measurement of ppb and ppt levels of phosphine, PH3, in foodstuffs, air, and water. Based on a response at 10% of recorder scale with a reproducibility to within ±10%, the lower limits of detectability were: microcoulometric (peak area), 5 nanograms; thermionic (peak height), 20 picograms; flame photometric (peak height), 5 picogr… Show more

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Cited by 31 publications
(13 citation statements)
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“…Berck et al 93 presented the detection of PH 3 , in foodstuffs, air, and water, by gas-liquid chromatography with detectors of microcoulometric (MCD), thermionic (TD), and flame photometric (FPD) in the phosphorus mode. Generation of PH 3 was operated by addition of water to powdered phostoxin in a syringe followed by transferring into a flat bottom boiling flask for concentrating the PH 3 gas.…”
Section: Gas Chromatography-based Methodsmentioning
confidence: 99%
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“…Berck et al 93 presented the detection of PH 3 , in foodstuffs, air, and water, by gas-liquid chromatography with detectors of microcoulometric (MCD), thermionic (TD), and flame photometric (FPD) in the phosphorus mode. Generation of PH 3 was operated by addition of water to powdered phostoxin in a syringe followed by transferring into a flat bottom boiling flask for concentrating the PH 3 gas.…”
Section: Gas Chromatography-based Methodsmentioning
confidence: 99%
“…Regarding the important role of TD and FPD in the analysis of PH 3 , it is necessary to be mentioned that higher sensitivity, low background interference, stable baseline, and also the rapid and highly reproducible PH 3 elution from a short column can be obtained by an FPD. 93 Moreover, owing to the rapid oxidization and metabolization of PH 3 in biological samples (such as urine), the molecular form of PH 3 can be undetectable. The absorption of PH 3 can rapidly happen through the lungs followed by mostly exhalation of PH 3 through respiration.…”
Section: Critical Notementioning
confidence: 99%
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“…The direct determination of phosphine gas is not treated in the descriptions of standard methods, but there are methods for or thophosphate to which phosphine can be converted. Berck et al [5] have described gas-liquid chromatography of phosphine at the ppb level; Guiochon and Pommier [6] describe the gas chromatographic separation of gaseous hydrides including phosphine; and Dumas (1964) [45] has described the determination of phosphine in air down to 0.5 ppm.…”
Section: Phosphine Determinationmentioning
confidence: 99%
“…This reaction forms an egg-yolk yellow product with a maximum absorption at 400 nm (Rangaswamy 1984). A gas chromatography (GC) method was applied for the analysis of PH 3 in the 1970s (Berck et al 1970). The most widely used phosphides, aluminum phosphide and magnesium phosphide, do not entirely decompose, and they leave residues that can be converted by acid hydrolysis to PH 3 in food commodities (Bruce et al 1962;Nowicki 1978;Banks 1986;Calzolai 1990).…”
mentioning
confidence: 99%