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Letter to the editor on "ion chromatographic measurement of fluoride and sulfur dioxide in samples collected at aluminum smelters."

Authors
Lorberau-CD; Balya-DR
Source
Am Ind Hyg Assoc J 1992 Jan; 53(1):A-14
NIOSHTIC No.
00206609
Abstract
Comments were made in reference to "Ion Chromatographic Measurement of Fluoride and Sulfur Dioxide in Samples Collected at Aluminum Smelters" by D. R. Balya (American Industrial Hygiene Association Journal, August 1991). The paper concerned a fluoride (16984488) analysis procedure for aluminum smelters. One cited problem was the use of an untreated cellulose pad as backup for the cellulose ester membrane front filter. Findings indicated a 16 to 35 microgram loss of fluoride by reaction with the cellulose pads at loadings of 32 and 204 micrograms. Concern was expressed over acetate interference from the cellulose ester membrane filter in the fluoride fusion step as well as the need to ensure adequate dilution to avoid a high carbonate background. Rebuttal by the original author focused on consistent recoveries of over 90% and reduction of excess carbonate through use of the AS4A column, dilution by 150, and use restriction to full shift samples.
Keywords
NIOSH-Author; Chemical-analysis; Analytical-methods; Analytical-chemistry; Chromatographic-analysis; Smelting; Primary-smelting; Metalworking-industry
CODEN
AIHAAP
CAS No.
16984-48-8
Publication Date
19920101
Document Type
Other
Fiscal Year
1992
NTIS Accession No.
NTIS Price
Issue of Publication
1
ISSN
0002-8894
Source Name
American Industrial Hygiene Association Journal
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