Abstract

Abstract The use of a zinc column arsine generator for the determination of methylated arsenic species in extracts is described. Monomethyl arsenic and dimethyl arsenic are reduced to the corresponding arsine with a zinc redactor column, the evolved arsine decomposed in a heated carbon-tube furnace and arsenic determined by measurement of its atomic absorption at 193.7 nm. The coefficients of variation at the 0.05 μg/ml level are 3.2% for monomethyl arsenic and 2.1% for dimethyl arsenic. The detection limits based on four times the standard deviation of the blank analyses are 0.006 μg/ml for monomethyl arsenic and 0.001 μg/ml. for dimethyl arsenic.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.