[Preconcentration with crosslinked chitosan for determination of trace manganese in waters by flame atomic absorption spectrometry].
Guang Pu Xue Yu Guang Pu Fen Xi
; 25(9): 1514-7, 2005 Sep.
Article
en Zh
| MEDLINE
| ID: mdl-16379305
ABSTRACT
A novel method for the preconcentration with crosslinked chitosan (CCTS) and determination of trace manganese in waters by flame atomic absorption spectrometry has been presented. The absorption rate of manganese (VII) by CCTS was 98% at pH 3.00. The effect of preconcentration time, dosage of CCTS, temperature, sample volume and co-existing elements have been investigated. The mechanism of adsorption of CCTS for Mn(VII) was also discussed. The detection limit of the method was 1.86 microg x L(-1), and the relative standard deviation (RSD) was 2.0% (n = 10). The method has been applied to the determination of trace manganese in south lake and Changjiang water with satisfactory results.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Espectrofotometría Atómica
/
Agua
/
Quitosano
/
Manganeso
Idioma:
Zh
Revista:
Guang Pu Xue Yu Guang Pu Fen Xi
Año:
2005
Tipo del documento:
Article
País de afiliación:
China