Analysis of atmospheric aerosols by nonsuppressed ion chromatography
While larger laboratories can justify the investment in the commercially available systems (e.g., Dionex) there is a strong incentive for smaller laboratories to adapt already available high performance liquid chromatography instrumentation as a low cost alternative for ion chromatography. This paper summarizes the performance of one such system developed of necessity when wet chemical methods became inadequate for the required analyses. The experimental system utilizes a Vydac 302 I.C. column with low conductivity buffered eluents. No suppressor column is needed with this approach as with the carbonate/bicarbonate eluents used in the Dionex system. The characteristics of the Vydac column have been fairly well established from previous studies and its use for the analysis of aqueous samples has been discussed in other recent publications. Although nonsuppressed ion chromatography may be slightly poorer in detection limits than the suppressed approach, it is adequate for many applications and has proved perfectly satisfactory for aerosol analyses. To date nearly 1500 filter samples have been analyzed for sulfate, nitrate, and chloride levels forming one of the largest sets of data yet obtained for aerosol composition in the UK. 10 references, 4 figures, 2 tables.
- Research Organization:
- Leeds Univ., England
- OSTI ID:
- 6265488
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 56:6; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400102* -- Chemical & Spectral Procedures
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR
AIR POLLUTION CONTROL
CHEMICAL ANALYSIS
CHLORIDES
CHLORINE COMPOUNDS
CHROMATOGRAPHY
COLLOIDS
CONTROL
DATA
DISPERSIONS
EXPERIMENTAL DATA
FLUIDS
GASES
HALIDES
HALOGEN COMPOUNDS
INFORMATION
ION EXCHANGE CHROMATOGRAPHY
NITRATES
NITROGEN COMPOUNDS
NUMERICAL DATA
OXYGEN COMPOUNDS
PH VALUE
POLLUTION CONTROL
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SOLS
SULFATES
SULFUR COMPOUNDS