Atomic-emission determination of the total arsenic in the air of a workingarea

Authors
Zorin, AD Zanozina, VF Gayazova, IN Markova, ML Klimov, KN Tumanova, AN
Citation
Ad. Zorin et al., Atomic-emission determination of the total arsenic in the air of a workingarea, J ANALYT CH, 54(2), 1999, pp. 166-168
Citations number
6
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ANALYTICAL CHEMISTRY
ISSN journal
10619348 → ACNP
Volume
54
Issue
2
Year of publication
1999
Pages
166 - 168
Database
ISI
SICI code
1061-9348(199902)54:2<166:ADOTTA>2.0.ZU;2-3
Abstract
A procedure for the atomic-emission determination of the total arsenic, inc luding that as lewisite, in the air of the working area was developed. A ce rtain volume of air is pumped through an absorbing flask with concentrated nitric acid. Next, the acid is evaporated in the presence of high-purity gr aphite powder, Atomic-emission spectra of the dry residue are excited using a de are discharge. It is possible to determine 5 x 10(-4) mg of arsenic f rom a sample of 1 m(3).