Extractive fluorimetric determination of dimethoate residues in water samples

Authors
Mohan, KR Ramesh, A Seshaiah, K
Citation
Kr. Mohan et al., Extractive fluorimetric determination of dimethoate residues in water samples, I J CHEM A, 39(12), 2000, pp. 1331-1333
Citations number
6
Categorie Soggetti
Chemistry
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
ISSN journal
03764710 → ACNP
Volume
39
Issue
12
Year of publication
2000
Pages
1331 - 1333
Database
ISI
SICI code
0376-4710(200012)39:12<1331:EFDODR>2.0.ZU;2-F
Abstract
A sensitive, extractive fluorimetric method for the determination of dimeth oate has been described. Dimethoate is hydrolyzed with sodium ethoxide into sodium dimethyl dithiophosphate, which is extracted with Rhodamine 6G, as ion pair into toluene. The fluorescence of the organic layer is measured at 560 nm after excitation at 536 nm. The method has been applied to the dete rmination of dimethoate residues in water samples up to ppb level with prec oncentration on Amberlite XADB2.