A simple and rapid hydride generation—atomic absorption method for the determination of arsenic in biological, environmental and geological samples

Smith, Ralph G.; Loon, J.C. Van; Knechtel, Johanna; Fraser, J. L.; Pitts, A.E.; Hodges, A.E.

doi:10.1016/0003-2670(77)80007-x

Cited by 25 publications

(5 citation statements)

References 8 publications

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“…The soil and plant samples were digested with a mixture of concentrated nitric acid and perchloric acid [HNO 3 :HClO 4 , 2:1, (v/v)]. Arsenic and other elements in the digested soil and plant samples were analyzed by employing atomic absorption spectrophotometer (AA-6200, Shimadzu, Kyoto) by following the prescribed laboratory methods [54,55]. Reagent blanks and internal standards were used to ensure the accuracy and precision in the analysis.…”

Section: Measurement Of the Elementsmentioning

confidence: 99%

Effect of Phosphorus or Silicon on the Arsenic Content of Japanese Mustard Spinach (Brassica rapa var. perviridis) Grown on Arsenic Contaminated Soil

Joardar

2014

IJPSS

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Section: Measurement Of the Elementsmentioning

confidence: 99%

Effect of Phosphorus or Silicon on the Arsenic Content of Japanese Mustard Spinach (Brassica rapa var. perviridis) Grown on Arsenic Contaminated Soil

Joardar

2014

IJPSS

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“…The sodium borohydride reduction of nanogram quantities of arsenic, antimony, bismuth, tin, germanium, mercury, tellurium, selenium, and lead to produce votatile hydrides for detection by atomic absorption, gas chromatography and emission spectroscopy has been widely reported [5,[66][67][68][69][70]. Sodium borohydride is also used to reduce silver, copper and nickel in the spectrophotometric determination [64].…”

Section: Analytical Chemistrymentioning

confidence: 99%

“…Sodium borohydride has also widely used to reduce metal cations for analysis [5,[64][65][66][67][68][69][70][71][72]. Finally it may be potentially applicable to emerging hydrometallurgical applications.…”

Section: Introductionmentioning

confidence: 99%

Cobalt precipitation by reduction with sodium borohydride

1997

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In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the head of my department or by his or her representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission.

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“…4 Atomic absorption spectrometry, both with hydride generation (HGAAS) and electrothermal atomization (ETAAS), is widely used for the determination of arsenic at trace levels in plant samples. The use of either ETAAS 5,6 or HGAAS [7][8][9][10][11] for the determination of arsenic in these samples requires dissolution and decomposition of samples. There are, usually, timeconsuming procedures and a risk of contamination and/or loss of the element is associated with this mode of sample preparation.…”

mentioning

confidence: 99%

Slurry Sampling for Hydride Generation Atomic Absorption Spectrometric Determination of Arsenic in Cigarette Tobaccos

Mierzwa

Adeloju²,

Dhindsa³

1997

Analyst

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The development of a slurry sampling hydride generation atomic absorption spectrometric (HGAAS) method for the determination of arsenic in cigarette tobacco samples is described. The method is relatively simple and has been shown to give values of total arsenic close to those obtained using methods requiring total dissolution and decomposition of all vegetable matter before analysis. Pre-treatment of samples slurried in nitric acid by ultrasonication permitted the extraction of about 90% of the total arsenic from tobacco samples. Further improvement in the recovery efficiency (up to 93-94%) was accomplished by the use of an additional step of short microwave-accelerated treatment. L-Cysteine was used as a pre-reduction agent. The accuracy and precision of the slurry sampling HGAAS method were studied using the certified reference material (CRM) CTA-OTL-1 Oriental Tobacco Leaves. Under the optimum conditions, as little as 2.6 ng of arsenic can be detected. The relative standard deviation of the overall procedure was calculated to be below 7.6% at arsenic concentration levels of 0.5-0.9 mg kg-1 and the analytical results obtained for the CRM agreed with the certified value. The main factors that influenced the reliability of the method were sample homogeneity, particle size and slurry concentration.

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A simple and rapid hydride generation—atomic absorption method for the determination of arsenic in biological, environmental and geological samples

Cited by 25 publications

References 8 publications

Effect of Phosphorus or Silicon on the Arsenic Content of Japanese Mustard Spinach (Brassica rapa var. perviridis) Grown on Arsenic Contaminated Soil

Effect of Phosphorus or Silicon on the Arsenic Content of Japanese Mustard Spinach (Brassica rapa var. perviridis) Grown on Arsenic Contaminated Soil

Cobalt precipitation by reduction with sodium borohydride

Slurry Sampling for Hydride Generation Atomic Absorption Spectrometric Determination of Arsenic in Cigarette Tobaccos

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