| 柱前衍生-液液微萃取-毛细管气相色谱法测定尿碘 |
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| 引用本文： | 刘盛田. 柱前衍生-液液微萃取-毛细管气相色谱法测定尿碘[J]. 中国卫生检验杂志, 2012, 0(9): 2066-2067,2070 |
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| 作者姓名： | 刘盛田 |
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| 作者单位： | 北京市顺义区疾病预防控制中心 |
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| 摘 要： | 目的:建立尿中碘化物的液-液萃取毛细管气相色谱测定方法。方法:尿碘经衍生成易气化衍生物,通过有机溶剂萃取、离心,直接吸取有机层进样,经气相色谱分离,电子捕获检测器定量检测。结果:该法分离效果好,检出限为0.05μg/L,加标回收率为95.2%～98.6%,相对标准偏差(RSD)为1.0%～2.5%。结论:该方法简单,灵敏度高,可用于尿样中碘的测定。
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| 关 键 词： | 液-液微萃取 尿碘 衍生 |
Determination of urinary iodine by capillary gas chromatography after liquid-liquid micro-extraction |
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| LIU Sheng-tian. Determination of urinary iodine by capillary gas chromatography after liquid-liquid micro-extraction[J]. Chinses Journal of Health Laboratory Technology, 2012, 0(9): 2066-2067,2070 |
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| Authors: | LIU Sheng-tian |
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| Affiliation: | LIU Sheng-tian(Shunyi District Center for Disease Control and Prevention,Beijing 101300,China) |
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| Abstract: | Objective:To establish a method for the determination of iodide in urine by capillary gas chromatography after liquid-liquid extraction.Methods: The iodine in the sample was derived into easy-gasified derivatives.Then it was extracted with organic solvent and centrifuged.The extractant was directly injected into gas chromatography for analysis and quantified by electronic capture detector(ECD).Results: Separation of the method was good and the detection limit was 0.05 μg/L with the recovery rate of 95.2%~98.6% and the relative standard deviation(RSD) was from 1.0% to 2.5%.Conclusion: This method is simple and sensitive and suitable for the detection of urinary iodine. |
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| Keywords: | Liquid-Liquid Micro-extraction Urinary iodine Derivative |
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