ATOMIC-ABSORPTION SPECTROPHOTOMETRIC DETERMINATION OF TRACES OF COPPER USING BIS(THIOPHENE-2-ALDEHYDO)THIOCARBOHYDRAZONE (BTATCH)

Authors
CHAUDHURY SP
Citation
Sp. Chaudhury, ATOMIC-ABSORPTION SPECTROPHOTOMETRIC DETERMINATION OF TRACES OF COPPER USING BIS(THIOPHENE-2-ALDEHYDO)THIOCARBOHYDRAZONE (BTATCH), Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 35(8), 1996, pp. 714-715
Citations number
7
Categorie Soggetti
Chemistry
Journal title
Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical → ACNP
ISSN journal
03764710
Volume
35
Issue
8
Year of publication
1996
Pages
714 - 715
Database
ISI
SICI code
0376-4710(1996)35:8<714:ASDOTO>2.0.ZU;2-8
Abstract
A sensitive and selective method for analysis of Cu(II) by atomic abso rption spectrophotometry in geological samples has been developed. Bis (thiophene-2-aldehydo)thiocarbohydrazone forms a yellow complex with C u(II) instantly at room temperature at pH 1.7-3. The yellow complex ha s been extracted with methyl isobutyl ketone and organic phase analyse d for Cu(II). The limit of detection, 13 ppb which corresponds to 1.3 ppm of the original rock samples, may be reduced considerably by incre asing the organic:aqueous phase ratio.