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1. Pretreatment method for the analysis of phosphate oxygen isotope (δ18OP) of different phosphorus fractions in freshwater sediments

Author:
Ji, Yongxue,   et al.   ; Liu, Yong; Wang, Jingfu; Chen, Jingan; Zhang, Runyu; Jin, Zuxue;     Show all 6 Authors
Source:
The Science of the total environment 2019 v.685 pp. 229-238
ISSN:
0048-9697
Subject:
activated carbon; biogeochemical cycles; chlorides; coprecipitation; eutrophication; freshwater; ions; iron; isotopes; lacustrine sediments; lakes; magnesium; organic matter; oxygen; pH; phosphates; phosphorus; China
Abstract:
... Accurate measurement of the oxygen isotopic composition of dissolved phosphate (δ18OP) of different phosphorus (P) fractions in lacustrine sediments is very difficult because of the influence of large amounts of impurities. In this study, we developed a five-step method for obtaining high purity Ag3PO4 sample for the analysis of δ18OP of different P fractions in freshwater sediments. Sedimentary P ...
DOI:
10.1016/j.scitotenv.2019.05.238