Combined generator/separator. Part 2. Stibine generation combined with flow injection for the determination of antimony in metal samples by atomic emission spectrometry
作者： Hengwu Chen , Ian D. Brindle , Shaoguang Zheng
DOI: 10.1039/AN9921701603
关键词:
摘要: Application of a new continuous hydride generator to the determination antimony in metals by flow injection is described. A modified generator/gas–liquid separator has been designed. The detection limit for 7.5 ng cm–3 0.5 cm3 sample. For solutions containing 200 antimony, relative standard deviation 0.9%. Reduction antimony(V) antimony(III) effected off-line pre-reduction with L-cysteine. L-Cysteine also accelerates tetrahydroborate(III) reaction and reduces interferences from transition elements and, exception selenium, other hydride-forming elements. Results are reported iron copper samples.
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B. Welz, M. Melcher, Determination of antimony, arsenic, bismuth, selenium, tellurium, and tin in metallurgical samples using the hydride AA technique—I Spectrochimica Acta Part B: Atomic Spectroscopy. ,vol. 36, pp. 439- 462 ,(1981) , 10.1016/0584-8547(81)80044-4
G. E. Pacey, M. R. Straka, J. R. Gord, Dual phase gas diffusion flow injection analysis-hydride generation atomic absorption spectrometry Analytical Chemistry. ,vol. 58, pp. 502- 504 ,(1986) , 10.1021/AC00293A056
Ian D. Brindle, Hengwu Chen, The effect of molybdenum(VI) on the production of arsine by the tetrahydroborate(III) reaction Talanta. ,vol. 38, pp. 1137- 1141 ,(1991) , 10.1016/0039-9140(91)80232-O
E. Henden, Attempts to eliminate interferences in the determination of arsenic, antimony, tin and germanium by molecular emission cavity analysis with the hydride generation technique Analyst. ,vol. 107, pp. 872- 878 ,(1982) , 10.1039/AN9820700872
K. De Doncker, R. Dumarey, R. Dams, J. Hoste, The use of 1,10 -phenanthroline in minimizing the nickel interference in determinations of bismuth and antimony by hydride generation/atomic absorption spectrometry Analytica Chimica Acta. ,vol. 169, pp. 339- 341 ,(1985) , 10.1016/S0003-2670(00)86237-6
J.Wilson Hershey, Peter N. Keliher, Some hydride generation inter-element interference studies utilizing atomic absorption and inductively coupled plasma emission spectrometry Spectrochimica Acta Part B: Atomic Spectroscopy. ,vol. 41, pp. 713- 723 ,(1986) , 10.1016/0584-8547(86)80086-6
Solomon. Tesfalidet, Knut. Irgum, Polymer-bound tetrahydroborate for arsine generation in a flow-injection system Analytical Chemistry. ,vol. 61, pp. 2079- 2082 ,(1989) , 10.1021/AC00193A015
Hengwu Chen, Ian D Brindle, Xiao Chun Le, None, Prereduction of arsenic(V) to arsenic(III), enhancement of the signal, and reduction of interferences by L-cysteine in the determination of arsenic by hydride generation Analytical Chemistry. ,vol. 64, pp. 667- 672 ,(1992) , 10.1021/AC00030A018
Ove. Aastroem, Flow injection analysis for the determination of bismuth by atomic absorption spectrometry with hydride generation Analytical Chemistry. ,vol. 54, pp. 190- 193 ,(1982) , 10.1021/AC00239A011
R Bye, Considerations on the different oxidation states of antimony, arsenic and selenium in the determination of the elements by hydride generation-atomic spectrometry. Talanta. ,vol. 37, pp. 1029- 1030 ,(1990) , 10.1016/0039-9140(90)80146-7