Hydridmethode zur Arsenbestimmung durch Atomabsorptionsspektrometrie mit Atomisierung im heißen Quarzrohr

Dornemann, A.; Kleist, H.

doi:10.1007/bf00483202

Cited by 9 publications

(4 citation statements)

References 2 publications

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“…However, with sediment nickel concentrations over 500 ppm, signal reduction was observed that required a mathematical correction based on a linear relationship between nickel concentration and arsenic recovery. Domemann and Kleist (20) investigated a number of chelating agents with a view to eliminating the interfering effects of cobalt, copper, and nickel. They reported that pyridine-2aldoxime was more efficient than EDTA or 2,2,-dipyridyl.…”

Section: Literature Citedmentioning

confidence: 99%

“…The common modes of absorbance detection employ fixed-wavelength, variable-wavelength (scanning), or multichannel (photodiode array) detectors (7). If improved solute detectability is a concern, many laser-based approaches to HPLC and FIA absorbance detection have been developed based upon thermal lens spectroscopy (8-18), Fabry-Perot interferometry (19), indirect polarimetry (20), and high-frequency amplitude modulation (21,22). In each of these laser-based methods, quantitative analysis is ultimately limited by some form of noisé.…”

Section: Literature Citedmentioning

confidence: 99%

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Interference reduction by L-cystine in the determination of arsenic by hydride generation

Boampong¹,

Brindle²,

Le³

et al. 1988

Anal. Chem.

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Section: Literature Citedmentioning

confidence: 99%

Section: Literature Citedmentioning

confidence: 99%

Interference reduction by L-cystine in the determination of arsenic by hydride generation

Boampong¹,

Brindle²,

Le³

et al. 1988

Anal. Chem.

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“…Crude glycerine may contain metal ions and/or reducible organic compounds which can interfere with formation of the arsine. For example, it is well known that metal ions such as nickel interfere (3,5). It is likely that the USP method is similarly limited, as it utilizes similar arsine generation chemistry.…”

Section: Limitationsmentioning

confidence: 99%

Determination of arsenic in glycerine by hydride generation atomic absorption spectroscopy

Ullman

1983

J Americ Oil Chem Soc

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A rapid method for the determination of arsenic in glycerine is described. The glycerine sample is diluted and any arsenic present reacted with sodium borohydride and hydrochloric acid to give arsine gas. The evolved arsine is quantitated by atomic absorption spectroscopy in a quartz tube positioned in the flame of a commercial instrument. The method is faster than the colorimetric arsine method recommended by the United States Pharmacopeia and has a precision of 4.4% (RSD) at the 50 µg level (equal to 1.25 µg As/g glycerine).

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“…Agget and Aspell [16] reported that acetate and citrate ions behave similarly as EDTA. Dornemann and Kleist [17] investigated the use of some chelating agents with a view to eliminate the interfering effects of cobalt, copper and nickel. They found that pyridine-2-aldoxime was more efficient than EDTA or 2,2'-dipyridyl.…”

Section: Introductionmentioning

confidence: 99%

Interferences by transition metals and their elimination by cyanide as a complexing agent in the determination of arsenic using continuous flow HG-ICP-AES

Jamoussi¹,

Zafzouf²,

Hassine

1996

Fresenius J Anal Chem

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The interfering effects of various foreign ions on the determination of arsenic were studied by hydride generation inductively coupled plasma atomic emission spectrometry (HG-ICP-AES). There were serious inhibiting interferences by Cu, Pb, Co, Au, Pd and Ni. However, by using cyanide as a complexing agent these interferences could be completely eliminated over a wide range of interferent concentration. The optimum chemical parameters for continuous arsine generation were studied. A major advantage of this technique is that it only needs low acid concentrations and produces less hazardous waste. Sensivity, selectivity and accuracy of the determination of arsenic by HG-ICP-AES were investigated. The detection limit (in 1 mol/l HCl medium) for arsenic(III) was 0.82 ng/ml. The relative standard deviation for ten determinations of a solution containing 50 ng/ml arsenic was 1.3%.

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Hydridmethode zur Arsenbestimmung durch Atomabsorptionsspektrometrie mit Atomisierung im heißen Quarzrohr

Cited by 9 publications

References 2 publications

Interference reduction by L-cystine in the determination of arsenic by hydride generation

Interference reduction by L-cystine in the determination of arsenic by hydride generation

Determination of arsenic in glycerine by hydride generation atomic absorption spectroscopy

Interferences by transition metals and their elimination by cyanide as a complexing agent in the determination of arsenic using continuous flow HG-ICP-AES

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