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Simultaneous determination of inorganic arsenic(III) and arsenic(V) by arsine generation and gas-phase molecular absorption spectrometry

✍ Scribed by Jesús Sanz; Félix Gallarta; Javier Galbán

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
569 KB
Volume
255
Category
Article
ISSN
0003-2670

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✦ Synopsis

A method for the amultaneons determmatlon of morgamc A.4111) and As(V) 1s described,, which mvolves arsme generatlon, measurement of the molecular absorption of arsme in the gas phase at 190 nm and quanticatlon of As(III) and As(v) based on different heights and areas of absorbance versus tune profiles of arsme generated from both morgamc species The lumts of detection were 0 5 pg of A&II) and 3 pg of As(V) m a sample volume of 1 ml An interference study for both species was made and the method was appbed to the determmatlon of As,03 and As,O, m a standard glass sample

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