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Analysis of atmospheric aerosols by nonsuppressed ion chromatography

Journal Article · · Anal. Chem.; (United States)
DOI:https://doi.org/10.1021/ac00270a039· OSTI ID:6265488

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