Organic matter and pH affect the analysis efficiency of P-31-NMR
文献类型：期刊论文
| 作者 | Zhang, Wenqiang; Jin, Xin; Rong, Nan; Li, Jie; Shan, Baoqing |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2016-05 |
| 卷号 | 43期号:0页码:244-249 |
| 关键词 | P-31-NMR pH Organic matter Extraction rate Sediment |
| 英文摘要 | Solution P-31 nuclear magnetic resonance spectroscopy (P-31-NMR) is a useful method to analyze organic phosphorus (Po), but a general procedure for the analysis method is lacking. The authors used solution P-31-NMR, which was found to be an effective method for analysis of Po in Haihe River sediment, to analyze the Po in the surface sediment in Eastern China at the regional scale, and found that the NaOH-ethylenediaminetetraacetic acid (EDTA) extraction rate was affected by environmental factors. At the regional scale, the extraction rate showed a positive relationship with loss on ignition, when the extraction rate was lower than 60%. The extraction rate had no relationship with the loss on ignition when the extraction rate was higher than 60%. The extraction rate showed a negative relationship with pH, which means that the extraction rate was higher in acidic sediment and lower in alkaline sediment. The ratio of TC/TN (the ratio of total carbon to total nitrogen) was considered to represent the origin of organic matter in the sediment. The extraction rate was high when the TC/TN ratio was lower than 20, meanwhile the extraction rate decreased as the TC/TN ratio increased. The results show that the origin of organic matter in sediment significantly affects the NaOH-EDTA extraction rate. This study will give theoretical support for building an effective and general solution 31P-NMR analysis method. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36061]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Wenqiang,Jin, Xin,Rong, Nan,et al. Organic matter and pH affect the analysis efficiency of P-31-NMR[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2016,43(0):244-249. |
| APA | Zhang, Wenqiang,Jin, Xin,Rong, Nan,Li, Jie,&Shan, Baoqing.(2016).Organic matter and pH affect the analysis efficiency of P-31-NMR.JOURNAL OF ENVIRONMENTAL SCIENCES,43(0),244-249. |
| MLA | Zhang, Wenqiang,et al."Organic matter and pH affect the analysis efficiency of P-31-NMR".JOURNAL OF ENVIRONMENTAL SCIENCES 43.0(2016):244-249. |
入库方式： OAI收割
来源：生态环境研究中心
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