Application of Heteropoly Compounds for Determination of Chemical Speciations of Arsenic in Natural Waters
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Chemistry for Sustainable Development
ISSN: 1817-1818
|
| Вых. Данные |
Год: 2005,
Том: 13,
Номер: 3,
Страницы: 467-475
Страниц
: 9
|
| Авторы |
Koshheeva O.S.
1
,
Shuvaeva O.V.
1
,
Shtadler D.V.
2
,
Kuznetsova L.I.
2
|
| Организации |
| 1 |
Институт неорганической химии им. А.В. Николаева СО РАН
|
| 2 |
Институт катализа им. Г.К. Борескова СО РАН
|
|
The procedure has been developed to determine arsenate, arsenite, monomethylarsonate, and dimethylarsenite ions in water by the capillary electrophoresis method with spectrophotometric registration of detectable forms of arsenic derivatives. Isopolymolybdate has been selected as a reagent for derivatization. The stoichiometry has been studied and the extinction coefficients of the detected heteropoly complexes have been determined. Optimum conditions for their formation and for electrophoretic separation have been selected. Upon concentrating by the electrostacking method, the developed procedure affords the detection limits at a level of 0.01 mg/ml.