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High Volume Sorbent Sampling for Pesticide Analysis.

Authors
Lonnes-P
Source
NIOSH 1976 Jul:177-200
Link
NIOSHTIC No.
00058523
Abstract
A low energy dry sampling system is developed for the efficient collection of low concentrations of alkyl phosphonates in the atmosphere so that sufficient material can be collected in a short time for an infrared or mass spectrometric analysis. A procedure is developed to collect ultra-micro concentrations of hydrogen fluoride in the air using a cellulose acetate filter impregnated with sodium formate. Data are given for the collection efficiencies of untreated filter media and recoverability, with details of stationary phase tests, filter preparation, collection efficiency tests, dependence on loading, breakthrough determination, collection efficiency of untreated glass fiber filters, effect of blocking of silanol groups, regeneration of silanol groups, adsorption on inorganic salts, negative correlation of vapor pressure and collection efficiency, effect of loading and time on collection efficiency, and tests with DIMP.
Keywords
Analytical-methods; Air-contamination; Sampling-techniques; Toxic-substances; Environmental-contamination; Toxic-gases; Air-quality-measurement; Air-sampling; Insecticides; Adsorption;
CAS No.
7664-39-3;
Publication Date
19760701
Document Type
Conference/Symposia Proceedings;
Editors
Ballou-EV;
Fiscal Year
1976
NTIS Accession No.
NTIS Price
Identifying No.
(NIOSH) 76-193
Source Name
Second NIOSH Solid Sorbents Roundtable (Edited by E. V. Ballou), NIOSH, Cincinnati, Ohio, HEW Publication No. (NIOSH) 76-193
State
OH;
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