Capillary gas chromatography determination of volatile organic acids in rain and fog samples

Journal Article · Wed Aug 01 00:00:00 EDT 1984 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00273a018· OSTI ID:5931918

Kawamura, K; Kaplan, I R

A fused silica capillary gas chromatography technique is described for the determination of volatile acids (C/sub 1/-C/sub 7/) in rain samples using p-bromophenacyl esters. As the sensitivity of this method is high (GC detection limit is ca. 10 pmol), a small volume of rain (25-50 mL) or fog (1-2 mL) is needed. Spiked experiments showed that the measured concentrations of volatile acids in the spiked rain samples linearly increased with a slope of approx.1 in proportion to the concentrations of volatile acids added in the rainwater. Repeated analyses of rain samples showed that relative standard deviations are less than or equal to 18% for C/sub 1/, C/sub 2/, and C/sub 3/ acids, which are the major volatile acids.

• Research Organization: Univ. of California, Los Angeles
• OSTI ID: 5931918
• Journal Information: Anal. Chem.; (United States), Vol. 56:9
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
FOG
QUANTITATIVE CHEMICAL ANALYSIS
ORGANIC ACIDS
GAS CHROMATOGRAPHY
RAIN WATER
WATER
EXPERIMENTAL DATA
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
HYDROGEN COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
SEPARATION PROCESSES
400102* - Chemical & Spectral Procedures