Comparison of effectiveness of different ashing auxiliaries for determination of phosphorus in natural waters, aquatic organisms and sediments by ignition method
文献类型：期刊论文
| 作者 | Zhou, Y ; Zhang, FS; Yang, HS; Zhang, SM; Ma, XN
|
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2003-09-01 |
| 卷号 | 37期号:16页码:3875-3882 |
| 关键词 | Ignition Method Phosphorus Recovery P-containing Compounds Ashing Auxiliary |
| ISSN号 | 0043-1354 |
| DOI | 10.1016/S0043-1354(03)00267-7 |
| 文献子类 | Article |
| 英文摘要 | An improved method for the determination of phosphorus in natural waters, aquatic organisms and sediments by ignition method is proposed. The recoveries of phosphorus (P) from selected inorganic and organic P-containing compound standards after ignition with different auxiliaries, such as MgSO4, Mg(NO3)(2), MgO2, Mg(Ac-2) and CaCl2, were compared. We found that the phosphorus from most compound standards could not be completely recovered when these compounds were ignited (450-500degreesC) with the MgSO4 as auxiliary and the baked residue was extracted with 0.2 mol l(-1) HCl for 30min at 80degreesC or at room temperature. P recoveries, for example, were poor, less than 85%, if pyrophosphate and metaphosphate were ignited with the addition Of MgSO4 prior to the extraction of the baked residue with 0.2 mol l(-1) HCl at 80degreesC for 30 min. In contrast, MgO2, Mg(Ac)(2) and CaCl2, as well as Mg(NO3)(2), could all yield complete P recoveries at routine ashing temperatures (450-500degreesC). The results demonstrate that MgC12 is a more effective auxiliary agent for the determination of phosphorus in natural waters, aquatic organisms and sediments by ignition method than MgSO4 which is commonly used. (C) 2003 Elsevier Science Ltd. All rights reserved.; An improved method for the determination of phosphorus in natural waters, aquatic organisms and sediments by ignition method is proposed. The recoveries of phosphorus (P) from selected inorganic and organic P-containing compound standards after ignition with different auxiliaries, such as MgSO4, Mg(NO3)(2), MgO2, Mg(Ac-2) and CaCl2, were compared. We found that the phosphorus from most compound standards could not be completely recovered when these compounds were ignited (450-500degreesC) with the MgSO4 as auxiliary and the baked residue was extracted with 0.2 mol l(-1) HCl for 30min at 80degreesC or at room temperature. P recoveries, for example, were poor, less than 85%, if pyrophosphate and metaphosphate were ignited with the addition Of MgSO4 prior to the extraction of the baked residue with 0.2 mol l(-1) HCl at 80degreesC for 30 min. In contrast, MgO2, Mg(Ac)(2) and CaCl2, as well as Mg(NO3)(2), could all yield complete P recoveries at routine ashing temperatures (450-500degreesC). The results demonstrate that MgC12 is a more effective auxiliary agent for the determination of phosphorus in natural waters, aquatic organisms and sediments by ignition method than MgSO4 which is commonly used. (C) 2003 Elsevier Science Ltd. All rights reserved. |
| 学科主题 | Engineering, Environmental ; Environmental Sciences ; Water Resources |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000184857700009 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/2811]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Y,Zhang, FS,Yang, HS,et al. Comparison of effectiveness of different ashing auxiliaries for determination of phosphorus in natural waters, aquatic organisms and sediments by ignition method[J]. WATER RESEARCH,2003,37(16):3875-3882. |
| APA | Zhou, Y,Zhang, FS,Yang, HS,Zhang, SM,&Ma, XN.(2003).Comparison of effectiveness of different ashing auxiliaries for determination of phosphorus in natural waters, aquatic organisms and sediments by ignition method.WATER RESEARCH,37(16),3875-3882. |
| MLA | Zhou, Y,et al."Comparison of effectiveness of different ashing auxiliaries for determination of phosphorus in natural waters, aquatic organisms and sediments by ignition method".WATER RESEARCH 37.16(2003):3875-3882. |
入库方式： OAI收割
来源：海洋研究所
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