| 石墨炉原子吸收光谱法测定植物油中砷 |
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| 引用本文： | 俞涛,蒋雪凤,钟小伶. 石墨炉原子吸收光谱法测定植物油中砷[J]. 中国卫生检验杂志, 2012, 0(9): 2050-2051 |
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| 作者姓名： | 俞涛 蒋雪凤 钟小伶 |
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| 作者单位： | 浙江省杭州市江干区疾病预防控制中心 |
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| 摘 要： | 目的:建立检测植物油中砷含量的石墨炉原子吸收光谱方法。方法:样品经微波消化后,采用硝酸镁作为基体改进剂,石墨炉原子吸收光谱法测定。结果:方法线性范围为0μg/L～20μg/L,相关系数为0.9997,方法检出限为0.006 mg/kg,RSD为2.7%～3.2%,加标回收率为84.7%～99.0%。结论:本法简便、灵敏度高、重现性好,适用于植物油中砷的测定。
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| 关 键 词： | 石墨炉原子吸收光谱法 植物油 硝酸镁 砷 |
Determination of arsenic in vegetable oil by graphite furnace atomic absorption spectrophotometry |
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| YU Tao,JIANG Xue-feng,ZHONG Xiao-ling. Determination of arsenic in vegetable oil by graphite furnace atomic absorption spectrophotometry[J]. Chinses Journal of Health Laboratory Technology, 2012, 0(9): 2050-2051 |
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| Authors: | YU Tao JIANG Xue-feng ZHONG Xiao-ling |
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| Affiliation: | (Jianggan District Center for Disease Control and Prevention,Hangzhou 310004,China) |
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| Abstract: | Objective:To develop a method for the determination of arsenic in vegetable oil by graphite furnace atomic absorption spectrophotometry.Methods: After samples were digested with microwave,magnesium nitrate was added as matrix modifier and then determined by graphite furnace atomic absorption spectrometry.Results: The method had a linear relationship in the range of 0 μg/L~20 μg/L(r=0.9997),and the detection limit was 0.006 mg/kg,RSDs were between 2.7%~3.2%,the rate of recoveries were between 84.7%~99.0%.Conclusion: The method is simple,sensitive,reproducible and can be applicable to the determination of arsenic in vegetable oil. |
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| Keywords: | GFAAS Vegetable oil Magnesium nitrate Arsenic |
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