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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 12, Number 3
BKCSDE 12(3)
March 20, 1991

Title	Semi-Automatic Hydride Generation and Atomic Absorption Determination of Bismuth with in situ Concentration in a Graphite Furnace
Author	Yong-Keun Lee*, Dong Soo Lee, Byung Mok Yoon, Hoon Hwang
Keywords
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.
Page	290 - 295
Full Text	PDF

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