Comparison of two sample introduction techniques for the deter- mination of arsenic and selenium by direct current arc plasma atomic emission spectrometry DCP-AES

摘要

Nebulization of solution (NS) and batch mode hydride generation (HG) techniques, followed by direct current arc plasma atomic emission spectrometry (DCP-AES) were limits (established for standard solutions) were determined at non-standard wavelengths. About 85 and 65 times lower detection limits for As and Se, respectively, were achieved With HG than with NS. A hydride generation techniques was then used for the trace Determination of arsenic in white wheat flour and selenium in commercially available Ferksevit capsules, sued as a diet supplement.