| 催化荧光法测定痕量亚硝酸根 |
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| 引用本文： | 冯素玲,程定玺.催化荧光法测定痕量亚硝酸根[J].河南师范大学学报(自然科学版),1997,25(1):51-55. |
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| 作者姓名： | 冯素玲 程定玺 |
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| 作者单位： | 河南师范大学化学系 |
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| 摘 要： | 基于在磷酸介质中，亚硝酸根对嗅酸钾氧化罗丹明６Ｇ具有催化作用，提出了催化荧光法测定痕量亚硝酸根的新方法，方法的检出限为０．０８３ｎｇ／ｍｌ，线性范围为每２５ｍｌ４～６０ｎｇ，３０多种常见离子基本不干扰测定，将方法用于鲜带鱼、香肠、自来水，雪水中亚硝酸根含量的测定，结果满意
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| 关 键 词： | 催化荧光法 罗丹明6G 亚硝酸根 |
Catalytic Fluorimetric Determination of Trace Nitrite |
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| Feng Suling,Cheng Dingxi,Zhang Guien.Catalytic Fluorimetric Determination of Trace Nitrite[J].Journal of Henan Normal University(Natural Science),1997,25(1):51-55. |
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| Authors: | Feng Suling Cheng Dingxi Zhang Guien |
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| Abstract: | A new catalytic fluorimetric method for determining trace nitrite has been described. The method is based on the catalyic oxidation of rhadomic 6G with potassium bromate in the solution of phosphoric acid. The detection limit for nitrite is 0.083ng/ml. The linear range of the determination is 4～60ng(25ml).The proposed method suffers from few interferences in tthe presence of more than 30 foreign ions. The method has been used to determine trace nitrite in hairtail, sausage, tap-water,snow-broth samples with satisfactory results. |
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| Keywords: | catalytic fluorimetric method rhadomine 6G nitrite |
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