Determination of Arsenic in Milk Powder by Atomic Absorption Spectrophotometry
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چکیده
منابع مشابه
Gas-sampling technique for arsenic determination by atomic absorption spectrophotometry.
IN CONVENTIONAL atomic absorption spectrophotometry a solution of the sample is introduced into the flame as an aerosol by means of a nebulizer. However, commercial nebulizers are only about 5 efficient in forming fine droplets suitable for atomization by the flame ( I ) . Furthermore, a solution aspirated at a usual rate of 3-5 ml/min for about 10 sec produces a concentration signal extending ...
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Journal of Applied Sciences & Environmental Management, Vol. 5, No. 1, June, 2001, pp. 9-16 Development of a Simple System for the Determination of Arsenic after Hydride Generation Atomic Absorption Spectrophotometry * MUMUNI, A.R. ; PEACOCK, C. J Department of chemistry, University of Lancaster, Lancaster LAI 4YA, UK *Corresponding author Present address: Department of Pure and Industrial Chem...
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A simple and inexpensive hydride generation system that uses a pyrex boiling tube as a reduction vessel to hold the acidified sample into which 2cm of 100-300mg sodium tetrahydroborate (III) solution is injected such that the excess molecular hydrogen evolved carries the generated arsine directly through the atomic absorption spectrophotometer nebuliser to a nitrogen-hydrogen entrained air flam...
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ژورنال
عنوان ژورنال: Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)
سال: 1976
ISSN: 0015-6426,1882-1006
DOI: 10.3358/shokueishi.17.204