Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Semi-Automatic Hydride Generation and Atomic Absorption Determination of Bismuth with in situ Concentration in a Graphite Furnace

  • Published : 1991.06.20
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Abstract

A semi-automatic method for the determination of dissolved bismuth at parts per trillion levels is described. The method involves bismuthine generation, in situ collection of bismuthine in a graphite furnace, and atomic absorption detection. In order to facilitate semi-automation of bismuthine generation and separation from aqueous solution, Gore-tex microporous PTEE membrane is used. The absolute detection limit, taken as three times the standard deviation of the instrument noise is 2 pg. The precisions are 3.1% for 100 pg and 1.9% for 1 ng of bismuth, respectively. As many as 90 measurements can be made in an hour.

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  1. Atomic spectrometric detection of hydride forming elements following in situ trapping within a graphite furnace vol.51, pp.4, 1991, https://doi.org/10.1016/0584-8547(95)01419-5