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ID 19978
Eprint ID
19978
FullText URL
Author
Motomizu, Shoji
Oshima, Mitsuko
Ojima, Yuka
Abstract
On the basis of the coloration formed with molybdosilicate and Malachite Green in aqueous solution, trace amounts of silicate were determined. In an acidic medium, silicate reacted with molybdate to form molybdosilicate, which reacted with Malachite Green to form a colored ion association complex. The color was stabilized by adding poly(vinyl alcohol). The molar absorptivity was 1.0×10(5)mol(-1)cm(-1) at 595nm, and the absorbance of the reagent blank was 0.089. The recommended concentration range of silicon was 0.1-5μg and the limit of detection was 0.01μg of silicon. Silicate in river and tap waters was determined.
Keywords
Spectrophotometry
silicate determination
molybdate
Malachite Green
ion association complex
Published Date
1989-02-10
Publication Title
Analytical Sciences
Volume
volume5
Issue
issue1
Publisher
日本分析化学会
Publisher Alternative
Japan Society for Analytical Chemistry
Start Page
85
End Page
88
ISSN
0910-6340
NCID
AA10500785
Content Type
Journal Article
language
英語
Copyright Holders
日本分析化学会
File Version
publisher
Refereed
True
DOI