SELECTIVE PRECONCENTRATION OF THALLIUM ON MODIFIED SILICA-GEL FOR ITSDETERMINATION BY FLAME EMISSION AND ABSORPTION SPECTROMETRY

Authors
OTRUBA V STEPANKOVA J SOMMER L
Citation
V. Otruba et al., SELECTIVE PRECONCENTRATION OF THALLIUM ON MODIFIED SILICA-GEL FOR ITSDETERMINATION BY FLAME EMISSION AND ABSORPTION SPECTROMETRY, Talanta, 41(7), 1994, pp. 1185-1190
Citations number
27
Journal title
Talanta
ISSN journal
00399140 → ACNP
Volume
41
Issue
7
Year of publication
1994
Pages
1185 - 1190
Database
ISI
SICI code
0039-9140(1994)41:7<1185:SPOTOM>2.0.ZU;2-S
Abstract
Thallium (0.02-20 mug) was successfully preconcentrated on silica gel C18 from 0.1M hydrochloric acid in the presence of various cationic su rfactants as ion pairs with tetrachlorothallate(III), and subsequently eluted with %% ethanol. Of various atomic spectrometric procedures co nsidered, emission spectrometry in a nitrous oxide-acetylene flame is suitable for the final determination of thallium in plants, this is mo re sensitive for thallium than flame atomic absorption spectrometry.