Capillary zone electrophoresis has been used to separate arsenite, arsenate, dimethylarsinic acid, and phenyl-, p-aminophenyl-, and o- aminophenylarsinic acids. Identification and quantification of the arsenic species at mg L-1 levels was possible by use of direct UV detection at 200 nm. The relative standard deviation (n = 7) ranged from 0.97 to 1.52% for migration times and from 2.08 to 4.31% for peak areas. A method for rapid separation of inorganic arsenic species was also developed; by use of this method arsenite and arsenate could be separated within 2 min.
|Publication status||Published - Jan 1 2000|
- Arsenic speciation
- Capillary zone electrophoresis
ASJC Scopus subject areas
- Analytical Chemistry
- Clinical Biochemistry
- Organic Chemistry