Digestion Efficiency during Alkaline Persulfate Oxidation for Determination of Total Phosphorus Content of Biological Samples
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- ONISHI Yuji
- Center for Ecological Research, Kyoto University
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Abstract
<p>Quantifying total phosphorus contents of organisms can elucidate their physiological condition and the nutrient cycles of ecosystems. Simple, brief, and safe persulfate oxidation methods have been used for total P determination, but oxidizing solutions of different compositions and volumes have been used. Two certified reference materials were used to evaluate digestion efficiencies of different solutions for this study. Although the phosphorus recoveries were low (<90%) without NaOH, phosphorus recoveries using the solution with 4% K2S2O8 and 0.15 M NaOH were complete. Results demonstrated that digestion efficiency depends on the K2S2O8 concentration and on the pH condition. Moreover, the phosphorus recoveries were achieved at >4 mL/mg solution/material ratios for both standard materials. Therefore, the author recommends using >4 mL of the 4% K2S2O8 solution with 0.15 M NaOH for sample materials of <1 mg to quantify the total phosphorus of biological samples.</p>
Journal
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- Analytical Sciences
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Analytical Sciences 37 (12), 1771-1774, 2021-12-10
The Japan Society for Analytical Chemistry
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Details 詳細情報について
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- CRID
- 1390290339043581824
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- NII Article ID
- 130008127635
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- NII Book ID
- AA10500785
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- ISSN
- 13482246
- 09106340
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- NDL BIB ID
- 031882206
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- PubMed
- 34248091
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- Web Site
- https://ndlsearch.ndl.go.jp/books/R000000004-I031882206
- https://link.springer.com/content/pdf/10.2116/analsci.21P116.pdf
- https://link.springer.com/article/10.2116/analsci.21P116/fulltext.html
- https://www.jstage.jst.go.jp/article/analsci/37/12/37_21P116/_pdf
- https://search.jamas.or.jp/link/ui/2023043855
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed