Standard method of test for mercaptan content of the atmosphere. [Absorption/Spectrophotometry]

Journal Article · Wed Jan 01 04:00:00 EST 1975 · Annu. Book ASTM Stand.; (United States)

OSTI ID:7267377

Mercaptans are determined in air samples at concentrations below 100 ppB by bubbling the air through an absorber solution for a specified period of time at a specified flow rate. The collected mercaptan is determined colorimetrically using N,N-dimethyl-p-phenylenediamine. When air is sampled at the maximum recommended rate of 2l/min for 2h, the minimum detectable mercaptan concentration is 1.0 ppB. Other sulfur compounds cause interference with the method. (BLM)

• OSTI ID: 7267377
• Journal Information: Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 26; ISSN ASTSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADSORPTION
AIR
CHEMICAL ANALYSIS
FLUIDS
GASES
MONITORING
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
SORPTION
SPECTROPHOTOMETRY
STANDARDS
THIOLS