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| 流动注射化学发光法检测食品中SO2含量的研究 | |
| 引用本文： | 顾树芳,姜友富. 流动注射化学发光法检测食品中SO2含量的研究[J]. 南京医科大学学报(自然科学版), 2010, 0(9): 1287-1289 |
| 作者姓名： | 顾树芳 姜友富 |
| 作者单位： | 姜堰市疾病预防控制中心,江苏 姜堰〓225500;扬州市疾病预防控制中心,江苏 扬州〓225001 |
| 摘 要： | 目的:建立一种食品中SO2的化学发光快速检测法?方法:利用SO2定量的与酸性高锰酸钾反应,从而减弱高锰酸钾-间苯二酚的化学发光,其减弱值与被检物浓度有关?结果:在最优化条件下,SO2浓度在0.04~40.00 mg/L范围内与发光强度减弱值呈较好的线性关系?方法的检测限为0.03 mg/L (S/N=3)?结论:该方法可用于食品中SO2分析? |
| 关 键 词： | 二氧化硫 高锰酸钾 间苯二酚 化学发光 流动注射 |
| 收稿时间： | 2010-04-23 |
Flow-injection chemiluminescence detection of SO2 in food |
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| GU Shu-fang and JIANG You-fu. Flow-injection chemiluminescence detection of SO2 in food[J]. Acta Universitatis Medicinalis Nanjing, 2010, 0(9): 1287-1289 | |
| Authors: | GU Shu-fang and JIANG You-fu |
| Affiliation: | Center for Disease Prevention and Control of Jiangyan,Jiangyan 225500;Center for Disease Prevention and Control of Yangzhou,Yangzhou 225001,China |
| Abstract: | Objective:To establish chemiluminescence detection of sulfur dioxide(SO2) in food. Methods:SO2 quantificationally reacts with potassium permanganate,which can decrease the chemiluminescence intensity (CL) of the potassium permanganate-resorcin system,and the decrement of CL is correlated with the concentration of SO2. Results:In optimized condition,the calibration graph is linear in the range of 0.04~40.00 mg/L,and the limit of detection (LOD) is 0.03 mg/L (S/N=3). Conclusion:The proposed method can detecet SO2 in food. |
| Keywords: | sulfur dioxide potassium permanganate chemiluminescence resorcin flow-injection |
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