Determination of trace nitrite ion in water by spectrophotometric method after preconcentration on an organic solvent-soluble membrane filter
文献类型：期刊论文
| 作者 | Zhou, TZ; Qi, DY; Gu, XX |
| 刊名 | TALANTA
 |
| 出版日期 | 1996 |
| 卷号 | 43期号:2页码:169-175 |
| 关键词 | Nitrite Photometric Determination Preconcentration Soluble Filter |
| DOI | 10.1016/0039-9140(95)01686-4 |
| 英文摘要 | A simple and rapid preconcentration technique, based on collecting trace nitrite on a membrane filter and dissolving the membrane filter in an organic solvent, has been applied to its spectrophotometric determination in water. At pH 2.0, nitrous acid diazotizes with p-aminoacetophenone, which is then coupled with N-(1-naphthyl)ethylenediamine, at the same pH. The azo dye formed is collected on a 0.45 mu m nitrocellulose filter at pH 4.7 as its ion associate with dodecyl sulfate. The ion associate and filter are dissolved in a small volume of 2-methoxyethanol (methylcellosolve), and acidized with 0.05 ml of 2 M hydrochloric acid and the absorbance of the resulting solution is measured at 555 nm against a reagent blank. Detection limits better than 0.1 mu g/dm(-3) as NO2- can be achieved. The ions normally present in water do not interfere when sodium metaphosphate is added as a masking agent. The proposed method has been applied to the analysis of water samples from several sources, the recoveries of the nitrite added to the samples are quantitative, and results found are satisfactory. |
| WOS研究方向 | Chemistry |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/24414]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Zhou, TZ,Qi, DY,Gu, XX. Determination of trace nitrite ion in water by spectrophotometric method after preconcentration on an organic solvent-soluble membrane filter[J]. TALANTA,1996,43(2):169-175. |
| APA | Zhou, TZ,Qi, DY,&Gu, XX.(1996).Determination of trace nitrite ion in water by spectrophotometric method after preconcentration on an organic solvent-soluble membrane filter.TALANTA,43(2),169-175. |
| MLA | Zhou, TZ,et al."Determination of trace nitrite ion in water by spectrophotometric method after preconcentration on an organic solvent-soluble membrane filter".TALANTA 43.2(1996):169-175. |
入库方式： OAI收割
来源：生态环境研究中心
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