| 紫外分光光度法测定饮用纯净水中邻苯二甲酸二己酯含量 |
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| 引用本文： | 黄晓东,陶然,徐强.紫外分光光度法测定饮用纯净水中邻苯二甲酸二己酯含量[J].食品科学,2012,33(16):237-240. |
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| 作者姓名： | 黄晓东 陶然 徐强 |
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| 作者单位： | 安徽省生物制品与食品检测检验及其标准化技术公共服务平台;安徽工程大学生物与化学工程学院 |
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| 摘 要： | 目的:为建立饮用纯净水中的邻苯二甲酸二己酯含量的测定方法。方法:利用正己烷萃取饮用纯净水中的邻苯二甲酸二己酯,氮吹并用甲醇定容,建立紫外分光光度法对其进行含量测定,并对条件进行优化。结果:方法标准曲线方程为y=1.5347x+0.0266,线性相关系数为0.9970,该方法连续测定精密度为0.644%,重现性相对标准偏差为0.5742%,加标回收率为88.89%～97.73%。结论:建立紫外分光光度法测定瓶装饮用纯净水中邻苯二甲酸二己酯的方法,该方法简单快速,结果令人满意。
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| 关 键 词： | 邻苯二甲酸二己酯 紫外分光光度法 饮用纯净水 |
UV Spectrometric Determination of Diethylhexyl Phthalatein Purified Drinking Water |
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| HUANG Xiao-dong,TAO Ran,XU Qiang.UV Spectrometric Determination of Diethylhexyl Phthalatein Purified Drinking Water[J].Food Science,2012,33(16):237-240. |
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| Authors: | HUANG Xiao-dong TAO Ran XU Qiang |
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| Affiliation: | 1.Anhui Public Service for Biological Products and Food Inspection with Standardization Technology Platform,Wuhu 241000,China;2.College of Biochemistry Engineering,Anhui Polytechnic University,Wuhu 241000,China) |
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| Abstract: | Objective: To establish a UV spectrometric method to determine diethylhexyl phthalate(DEHP) in purified drinking water.Methods: DEHP in drinking water was extracted with n-hexane,blow-dried with nitrogen gas,and brought to a final volume with methanol.Experimental conditions for DEHP determination were optimized.Results: A standard curve equation was built as follows: y =1.5347x+0.0266 with linear correlation coefficient of 0.9970.The relative standard deviations of precision and reproducibility were 0.644% and 0.5742%,respectively.The average spike recovery rates were 88.89%-99.73%.Conclusion: This method is characteristics of simple operation,fast determination and satisfactory results. |
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| Keywords: | DEHP UV spectrophotometry purified drinking water |
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