EDTA extraction followed by 31P-NMR detection. However, some organic P compounds are difficult to extract using NaOH-a href='/search?dc.title=EDTA&facet-content-type=ReferenceWorkEntry&sortOrder=relevance' class='reference-link webtrekk-track' gaCategory="Internal link" gaLabel="EDTA" gaAction="reference keyword">EDTA due to the low solubility, thus can not be detected by 31P NMR. Here, we used foam separation to determine organic P in sediment of North Canal of Tianjin City, China. Organic P was first enriched using foam separation coupled with NaOH extraction. The enriched organic P was then analyzed with 31P NMR. The results showed that, compared with the traditional extraction method, foam separation coupled with NaOH extraction enriched more P compound because 31P NMR detected an extra signal of teichoic acid at chemical shift 1.14. This teichoic acid signal was not detected in the extract prepared using only NaOH-a href='/search?dc.title=EDTA&facet-content-type=ReferenceWorkEntry&sortOrder=relevance' class='reference-link webtrekk-track' gaCategory="Internal link" gaLabel="EDTA" gaAction="reference keyword">EDTA. Our finding demonstrates that determination using foam separation followed by 31P NMR is feasible." />
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Enhanced organic phosphorus detection in sediments by foam separation and 31P-NMR
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  • 作者:Yuxin Shi ; Tengfei Pan ; Di Mu ; Hongqin Wu
  • 关键词:Sediment phosphorus ; 31P ; NMR ; Organic phosphorus ; Foam separation
  • 刊名:Environmental Chemistry Letters
  • 出版年:2014
  • 出版时间:September 2014
  • 年:2014
  • 卷:12
  • 期:3
  • 页码:401-405
  • 全文大小:318 KB
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    2. Condron L, Frossard E, Tiessen H, Newman H, Stewart J (1990) Chemical nature of organic phosphorus in cultivated and uncultivated soils under different environmental conditions. J Soil Sci 41:41-5 CrossRef
    3. Hayes C, Green L (1984) The evaluation of eutrophication impact in public water supply reservoirs in East Anglia. Water Pollut Control 83:42-1
    4. Jorcin A, Nogueira M (2005) Temporal and spatial patterns based on sediment and sediment-water interface characteristics along a cascade of reservoirs (Paranapanema River, south–east Brazil). Lake Reserv 10:1-2 CrossRef
    5. Kaiserli A, Voutsa D, Samara C (2002) Phosphorus fractionation in lake sediments—lakes Volvi and Koronia, N.Greece. Chemosphere 46:1147-155 CrossRef
    6. Koopermans G, Chardon W, McDowell R (2007) Phosphorus movement and speciation in a sandy soil profile after long-term animal munure applications. J Environ Qual 36:305-15 CrossRef
    7. Kuo S (1996) Methods of soil analysis, Part 3-chemical methods. Soil Science Society of America, Madison, pp 894-95
    8. Larsen D, Schultz D, Malueg K (1981) Summer internal phosphorus supplies in Shagaw Lake, Minnesota. Limnol Oceanogr 26:741-53 CrossRef
    9. Li M, Zhang J, Wang G, Yang H, Whelan MJ, White SM (2013) Organic phosphorus fractionation in wetland soil profiles by chemical extraction and phosphorus-31 nuclear magnetic resonance spectroscopy. Appl Geochem 33:213-21 CrossRef
    10. Makarova M, Haumaier L, Zech W (2002) Nature of soil organic phosphorus: an assessment of peak assignments in the diester region of 31P NMR spectra. Soil Biol Biochem 34:1466-467
    11. Reitzel K, Ahlgren J, Gogoll A (2006) Effects of aluminum treatment on phosphorus, carbon, and nitrogen distribution in lake sediment: a 31P NMR study. Water Res 40:647-54 CrossRef
    12. Rub?k G, Guggenberger G, Zech W, Christensen B (1999) Organic phosphorus in soil size separates characterized by phosphorus-31 nuclear magnetic resonance and resin extraction. Soil Sci Soc Am J 63:1123-132 CrossRef
    13. Sui S, Luo Q (2001) Release character of phosphorus from the sediments of East Lake, Wuhan. Environ Sci 22:102-05
    14. Sumann M, Amelung W, Haumaier L (1998) Climatic effects on soil organic phosphorus in the north American great plains identified by phosphorus-31 nuclear magnetic resonance. Soil Sci Soc Am J 62:1580-586 CrossRef
    15. Turner B (2004) Optimizing phosphorus characterization in animal manures by solution phosphorus-31nuclear magnetic resonance spectroscopy. J Environ Qual 33:757-66 CrossRef
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    17. Zhang L, Qin B (2001) Phosphorus release and absorption of surface sediments in Taihu Lake under simulative disturbing condition. Lake Sci 13:35-2
    18. Zhang F, Wu Z, Yin H, Bai J (2010) Effect of ionic strength on the foam fractionation of BSA with existence of antifoaming agent. Chem Eng Process 49:1084-088 CrossRef
  • 作者单位:Yuxin Shi (1)
    Tengfei Pan (1)
    Di Mu (1)
    Hongqin Wu (1)
    Qingqiang Meng (1)
    Shuting Qi (1)

    1. Engineering Research Centre of Seawater Utilization Technology, Hebei University of Technology, Tianjin, 300130, People’s Republic of China
  • ISSN:1610-3661
文摘
Phosphorus (P) is both a nutrient and a pollutant. For instance, excess P induces water eutrophication followed by death of fishes and other water life. Determination of organic P content in sediments is therefore important to study P cycling and environmental pollution. The most widely used method to determine organic P in sediments is NaOH-a href='/search?dc.title=EDTA&facet-content-type=ReferenceWorkEntry&sortOrder=relevance' class='reference-link webtrekk-track' gaCategory="Internal link" gaLabel="EDTA" gaAction="reference keyword">EDTA extraction followed by 31P-NMR detection. However, some organic P compounds are difficult to extract using NaOH-a href='/search?dc.title=EDTA&facet-content-type=ReferenceWorkEntry&sortOrder=relevance' class='reference-link webtrekk-track' gaCategory="Internal link" gaLabel="EDTA" gaAction="reference keyword">EDTA due to the low solubility, thus can not be detected by 31P NMR. Here, we used foam separation to determine organic P in sediment of North Canal of Tianjin City, China. Organic P was first enriched using foam separation coupled with NaOH extraction. The enriched organic P was then analyzed with 31P NMR. The results showed that, compared with the traditional extraction method, foam separation coupled with NaOH extraction enriched more P compound because 31P NMR detected an extra signal of teichoic acid at chemical shift 1.14. This teichoic acid signal was not detected in the extract prepared using only NaOH-a href='/search?dc.title=EDTA&facet-content-type=ReferenceWorkEntry&sortOrder=relevance' class='reference-link webtrekk-track' gaCategory="Internal link" gaLabel="EDTA" gaAction="reference keyword">EDTA. Our finding demonstrates that determination using foam separation followed by 31P NMR is feasible.

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