Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1039, Issue 1-2, Pages 105-111Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2003.11.056
Keywords
water analysis; geochemistry; phosphorus compounds; hypophosphite; phosphite; orthophosphate
Funding
- NIGMS NIH HHS [S06 GM 8101-30] Funding Source: Medline
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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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