Boer JLM de ,
Nagtegaal NW ,
Piso S ,
Beek ACW van de
26 p
in Dutch
1993
Toon Nederlands
English Abstract In this study four methods for the determination of
arsenic in groundwater were compared. These methods were graphite furnace
AAS, batch-hydride generation AAS, flow injection hydride generation AAS and
ICP-MS. For hydride generation AAS four different sample preparation
procedures were applied. The comparison was carried out using conventional
linear regression and Deming linear regression. All methods performed about
equal. Sample preparation for flow injection hydride generation could be
simple. A prereduction step was sufficient. Detection limits were the
lowest for batch hydride generation AAS while the measurement range was the
largest for ICP-MS. Flow injection hydride generation AAS was the fastest
method. A mathematical correction procedure for the interference of ArCl+
in the ICP-MS determination of arsenic was shown to be successful up to a
chloride concentration of 100 mg/l.
