Submicromicrogram Determination of Cyanide by a Polarographic Method.

Miller, G. W.; Long, Lingliang; George, Giable; Sikes, W. L.

doi:10.1021/ac60212a010

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Sampling and Calibration Methods1

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1964

1991

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Cited by 16 publications

(5 citation statements)

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“…Electrochemical methods for cyanide determination include amperometry (3)(4)(5) and polarography (6). Sulfide can be determined by cathodic stripping voltammetry (7).…”

mentioning

confidence: 99%

Determination of cyanide, sulfide, iodide, and bromide by ion chromatography with electrochemical detection

Rocklin¹,

Johnson²

1983

Anal. Chem.

215

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“…Electrochemical methods for cyanide determination include amperometry (3)(4)(5) and polarography (6). Sulfide can be determined by cathodic stripping voltammetry (7).…”

mentioning

confidence: 99%

Determination of cyanide, sulfide, iodide, and bromide by ion chromatography with electrochemical detection

Rocklin¹,

Johnson²

1983

Anal. Chem.

215

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“…cyanide ion when small samples, less than 50 ml, are available. Electrochemical methods have been used to determine low concentrations of cyanide ion, but they do not appear to offer any advantages over the photometric methods (5,6).…”

mentioning

confidence: 99%

Ultraviolet spectrophotometric determination of cyanide ion

Scoggins¹

1972

Anal. Chem.

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Elimination of D20 from deuterated 4 affords the abundant ion at m\e 270. As expected only one molecule of D20 is lost since the second hydroxyl group is attached to the aromatic ring. In contrast, the cardenolide, digitoxigenin (5), affords a CI(D20) spectrum containing peaks corresponding to the successive loss of D20 and HDO from the d2-5 + D+ion.In addition to the above examples, we have also obtained Cl (D20) spectra on a number of compounds containing one or more common organic functional groups. Our findings indicate that hydrogen bonded to heteroatoms in alcohols, phenols, carboxylic acids, amines, amides, and mercaptans undergoes essentially complete exchange in the ion source when D20 is employed as the reagent gas at a pressure of 0.4 Torr. Small amounts of deuterium incorporation (<15%) occur in some ketones, aldehydes, and esters but, in general, this does not complicate the analyses. At the usual sample pressures (<10"e Torr) unsaturated compounds such as benzene, stilbene, and 3,3-dimethyl-l-butene fail to undergo exchange in the ion source.In summary, the above results indicate that CIMS using D20 as the reagent gas provides a convenient method for determining the active hydrogen content of organic molecules.Abundant ions in the molecular weight region are usually observed in CI(D20) spectra and the method of exchange minimizes isotope and sample losses.

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“…Figures 2 and 3 show typical waves of cadmium chloride and zinc chloride obtainable at very low concentrations. Preliminary work on the amperometric determination of extremely small concentrations (10-10 to 10~10 gram) of hydrogen cyanide (10) has shown that this instrument exceeds the sensitivity of those reported in the literature (1,8).…”

Section: Discussionmentioning

confidence: 76%