| 灰化法气相色谱/质谱法测定奶粉中碘的研究 |
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| 引用本文： | 奉夏平,叶祥平,姚春燕,刘胜国,曾宪远. 灰化法气相色谱/质谱法测定奶粉中碘的研究[J]. 分析科学学报, 2009, 25(2) |
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| 作者姓名： | 奉夏平 叶祥平 姚春燕 刘胜国 曾宪远 |
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| 作者单位： | 1. 惠州市质量计量监督检测所,广东惠州,516003
2. 惠州出入境检验检疫局综合技术中心,广东惠州,516003 |
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| 摘 要： | 采用气相色谱-质谱联用技术建立了一个快速、高灵敏测定奶粉中碘的新方法.用碱灰化法处理样品,丁酮衍生后用正己烷提取,无水硫酸钠脱水,HP-5MS柱气相色谱分离后用质谱在选择离子模式下测定,外标法定量.该方法的回收率在77%～110%之间,相对标准偏差小于10%,检出限为0.1 mg/kg.实验表明氯离子、溴离子都不干扰测定,方法的选择性好.
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| 关 键 词： | 碘 气相色谱 质谱 奶粉 |
Determination of Trace Iodine in Milk Powder by Gas Chromatography-Mass Spectrometry after Ashing Digestion of Sample |
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| FENG Xia-ping,YE Xiang-ping,YAO Chun-yan,LIU Sheng-guo,ZENG Xian-yuan. Determination of Trace Iodine in Milk Powder by Gas Chromatography-Mass Spectrometry after Ashing Digestion of Sample[J]. Journal of Analytical Science, 2009, 25(2) |
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| Authors: | FENG Xia-ping YE Xiang-ping YAO Chun-yan LIU Sheng-guo ZENG Xian-yuan |
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| Affiliation: | 1.Guangdong Huizhou Quality & Measuring Surpervision Testing Institute;2.Comprehensive Technology Centre;Huizhou Entry-exit Inspection & QuarantineBureau;Huizhou 516003 |
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| Abstract: | |
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| Keywords: | Iodine Gas chromatography Mass spectrometry Milk powder |
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