[Highly sensitive spectrophotometric determination of trace amounts tin in water by Sn(IV)-XO-PVA system].
Guang Pu Xue Yu Guang Pu Fen Xi
; 23(3): 594-6, 2003 Jun.
Article
en Zh
| MEDLINE
| ID: mdl-12953551
A new spectrophotometric method for the determination of trace amount of tin (IV) has been developed based on the reaction of Sn (IV) with o-cresolphthalexon (XO), which forms a stable complex in the presence of polyvinyl alcohol (PVA). The complex exhibited a maximum absorbance at 544 nm. The molar absorption coefficient was 4.38 x 10(5) L.mol-1.cm-1. Recovery factor ranged from 97.4%-101.1%. Beers law was obeyed in the range of Sn 0.1-5 micrograms.(25 mL)-1. The complex was stable within 6 h. The suitable conditions for the reaction were investigated. The developed method has been applied to the determination of Sn (IV) in water samples. The result obtained is satisfactory.
Buscar en Google
Bases de datos:
MEDLINE
Asunto principal:
Espectrofotometría Ultravioleta
/
Estaño
/
Contaminantes Químicos del Agua
/
Residuos Industriales
Tipo de estudio:
Diagnostic_studies
Idioma:
Zh
Revista:
Guang Pu Xue Yu Guang Pu Fen Xi
Año:
2003
Tipo del documento:
Article
País de afiliación:
China