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Cadmium(II)-exchanged zeolite as a solid sorbent for the preconcentration and determination of hydrogen sulfide in air.

Authors
Sivasankararao-V; Street-KW Jr.; Mark-HB Jr.
Source
Anal Chem 1981 May; 53(6):868-873
NIOSHTIC No.
00113474
Abstract
The use of cadmium (II) exchanged zeolite as a solid sorbent for the determination of hydrogen-sulfide (7783064) in the air was studied. A method using cadmium (II) exchanged zeolite as a AAA molecular sieve which acts as a preconcentrator for hydrogen-sulfide and immobilizes the sulfide by direct covalent bonding to the surface in the form of cadmium-sulfide (CdS) was developed. CdS was converted to methylene blue for spectrophotometric analysis. Field sampling and surface investigation techniques were used. The effects of interferences from atmospheric constituents and sample storage time were examined. The authors suggest that photoacoustic spectroscopy is feasible for direct nondestructive analysis.
Keywords
NIOSH-Publication; NIOSH-Grant; Heavy-metals; Air-sampling; Analytical-chemistry; Analytical-methods; Sampling-methods; Sampling-equipment
Contact
Chemistry University of Cincinnati Department of Chemistry Cincinnati, Ohio 45221
CODEN
ANCHAM
CAS No.
7783-06-4
Publication Date
19810501
Document Type
Journal Article
Funding Amount
82242.00
Funding Type
Grant
Fiscal Year
1981
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-00632
Issue of Publication
6
ISSN
0003-2700
Source Name
Analytical Chemistry
State
OH
Performing Organization
University of Cincinnati, Cincinnati, Ohio
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