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| 微波消解—氢化物原子荧光法测定婴幼儿配方奶粉中总砷 | |
| 引用本文： | 马恩亮. 微波消解—氢化物原子荧光法测定婴幼儿配方奶粉中总砷[J]. 预防医学情报杂志, 2009, 25(4): 356-358 |
| 作者姓名： | 马恩亮 |
| 作者单位： | 濮阳市疾病预防控制中心,河南,濮阳,457000 |
| 摘 要： | 目的建立测定婴幼儿配方奶粉中总砷的氢化物发生-原子荧光法。方法以硝酸为氧化剂进行微波消解后,采用氢化物原子荧光法测定。结果实验表明,在本法条件下绘制标准曲线在0.0～20.0μg/L浓度范围内线性关系良好,相对标准偏差（RSD）为0.85%,检出限为0.035μg/L,加标回收率为97.6%～101.2%。结论该方法简便、快速、灵敏、准确,适合婴幼儿配方奶粉中总砷含量的检测分析。 |
| 关 键 词： | 氢化物原子荧光光度法 婴幼儿配方奶粉 总砷 微波消解 |
Determination of Total Arsenic in Baby Formula by Microwave Digestion-Hydride Generation Atomic Fluorescence Spectrometry |
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| Ma En-liang. Determination of Total Arsenic in Baby Formula by Microwave Digestion-Hydride Generation Atomic Fluorescence Spectrometry[J]. Journal of Preventive Medicine Information, 2009, 25(4): 356-358 | |
| Authors: | Ma En-liang |
| Affiliation: | Ma En-liang (Center for Disease Control and Prevention of Puyang City, Puyang 457000, China.) |
| Abstract: | Objective To establish a method for determination of total arsenic in baby formula by hydride generation-atomic fluorescence spectrometry. Methods Sample was digested by microwave with nitric acid and determined by atomic fluorescence spectrometry. Results The method showed that liner range was 0. 0 -20. 0μg/L, the relative standard deviation（RSD） was 0. 85%, the detection limit of the method was 0. 035μg/L, recoveries were in the range of 97.6% -101.2%. Conclusion The method is simple, fast, sensitive and accurate. It can be used for the determination of total arse- nic in baby formula. |
| Keywords: | Hydride generation atomic fluorescence spectrometry Baby formula Total arsenic Microwave digestion |
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