Separation of trace antimony and arsenic prior to hydride generation atomic absorption spectrometric determination

A slurry sampling hydride generation atomic absorption spectrometric method for speciation analysis of trace inorganic arsenic in flours

A novel hydride generation atomic absorption spectrometric method is developed for speciation analysis of inorganic arsenic in flours. This method is based on the leaching of arsenic from sample slurry through the sonication followed by hydride generation in the slurry and determination of the corresponding hydrides. The content of arsenic (III) [As(III)] was determined under 1% HCl acidity con...

Interferences in the quartz tube atomizer during arsenic and antimony determination by hydride generation atomic absorption spectrometry

Interferences of some metals in the determination of arsenic by hydride generation atomic absorption spectrometry utilizing a quartz tube atomizer were studied. The atomizers were coated under vacuum with Ni, Au, Pd and Cr. The arsenic signal was almost totally suppressed by all the metal coatings and thus the interferences from metal ions in the determination of arsenic were attributed both to...

List of Contents 4.4.2.1 Determination of As(iii) and Total Arsenic Using Hydride Generation -atomic Absorption

Development of a Simple System for the Determination of Arsenic after Hydride Generation Atomic Absorption Spectrophotometry

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...

Development of a Simple System for the Determination of Arsenic after Hydride Generation Atomic Absorption Spectrophotometry

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...