期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1039, 期 1-2, 页码 105-111出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2003.11.056
关键词
water analysis; geochemistry; phosphorus compounds; hypophosphite; phosphite; orthophosphate
资金
- NIGMS NIH HHS [S06 GM 8101-30] Funding Source: Medline
Current doctrine states that phosphorus is incorporated into cells in the pentavalent(V) oxidation state as orthophosphate. However, recent studies show that microorganisms contain enzymes used to metabolize reduced forms of phosphorous, including phosphite(III) and hypophosphite(I), which suggests that there is a natural source for these chemical species. This paper will discuss suppressed conductivity ion chromatography methods developed to detect hypophosphite, phosphite, and orthophosphate in a geothermal water matrix containing fluoride, chloride, bromide, nitrate, hydrogen carbonate and sulfate. All peaks were clearly resolved, and calibrations were linear with estimated 3sigma detection limits of 0.83, 0.39, and 0.35 muM for hypophosphite, phosphite, and orthophosphate, respectively. (C) 2003 Elsevier B.V. All rights reserved.
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