| 流动注射—化学发光法测定蔬菜中的微量亚硝酸盐研究 |
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| 引用本文： | 范彩玲,朱灵峰,姜志宏,苏 惠.流动注射—化学发光法测定蔬菜中的微量亚硝酸盐研究[J].中国农学通报,2006,22(9):88-88. |
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| 作者姓名： | 范彩玲 朱灵峰 姜志宏 苏 惠 |
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| 作者单位： | 1. 河南农业大学理学院,郑州,450002
2. 华北水利水电学院环工系,郑州,450011 |
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| 基金项目： | 河南省科技攻关项目“绿色食品安全性评价方法研究(”2003550308)部分内容。 |
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| 摘 要： | 利用鲁米诺—铁氰化钾—尿酸化学发光体系，在酸性介质中，亚硝酸盐氧化亚铁氰化钾为铁氰化钾，建立了间接测定微量亚硝酸盐的方法。讨论了酸度、反应物浓度、干扰离子等因素的影响，检出限达5.0×10-5mg/L，线性范围在0.001~10 mg/L，加标回收率在97.5%~104%之间，RSD≤3.6%，该方法尤其适合于较低微量亚硝酸盐的测定,可用于各种蔬菜中微量亚硝酸盐的测定。
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| 关 键 词： | 中国 中国 太空育种 现状 展望 |
| 收稿时间： | 2006-04-22 |
| 修稿时间： | 2006-04-222006-05-07 |
Determination of Trace Nitrite in the Vegetable by Coupling Chemiluminescence Analysis |
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| Fan Cailing,Zhu lingfeng,Jiang zhihong,Suhui.Determination of Trace Nitrite in the Vegetable by Coupling Chemiluminescence Analysis[J].Chinese Agricultural Science Bulletin,2006,22(9):88-88. |
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| Authors: | Fan Cailing Zhu lingfeng Jiang zhihong Suhui |
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| Institution: | (1College of science, Henan Agricultural University, Zhengzhou 450002;
2North China Institute of Water Conservancy and Hydroelectric Power, zhengzhou 450011) |
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| Abstract: | In acidic medium that NO2－ oxidize Fe(CN)6]4- to Fe(CN)6]3- and luminol—Fe(CN)6]3-uric acid chemiluminescence system was coupled together, thus a new method for the determination of trace nitrite was developed. The effect of factors，such as consistency of various substance of reaction, acidity, disturbing ions etc., on the analytical results were studied. The Detection Limit was 5.0×10-5mg/L (3a). The Linear Range was at 0.001~10 mg/L. The parallel determination was done 12 times and the relative standard deviation was no more than 3.6%. The recovery was at the range of 97.5 to 104. |
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| Keywords: | Chemiluminescence Nitrite Vegetable Luminol |
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