| 微波消解-石墨炉原子吸收法测定小龙虾中镉 |
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| 引用本文： | 蔡芹,周美荣,王婧,何翔宇. 微波消解-石墨炉原子吸收法测定小龙虾中镉[J]. 中国卫生检验杂志, 2011, 0(10): 2395-2396 |
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| 作者姓名： | 蔡芹 周美荣 王婧 何翔宇 |
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| 作者单位： | 江苏省沭阳县疾病预防控制中心; |
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| 摘 要： | 目的:建立测定小龙虾中镉的微波消解-石墨炉原子吸收法。方法:样品经硝酸微波消解后,以石墨炉原子吸收法测定。结果:镉在1.0 ng/ml～10.0 ng/ml浓度范围内线性良好,相关系数r=0.9992,方法检出限为0.001 mg/kg,相对标准偏差为3.8%～4.8%,回收率为90.0%～105%。结论:该法操作简便,快速、检出限低,结果可靠,可用于小龙虾中镉的测定。
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| 关 键 词： | 微波消解 石墨炉原子吸收 小龙虾 镉 |
Determination of cadmium in crayfish by GFAAS after microwave digestion |
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| CAI Qin,ZHONG Mei-rong,WANG Jing,HE Xiang-yu. Determination of cadmium in crayfish by GFAAS after microwave digestion[J]. Chinses Journal of Health Laboratory Technology, 2011, 0(10): 2395-2396 |
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| Authors: | CAI Qin ZHONG Mei-rong WANG Jing HE Xiang-yu |
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| Affiliation: | CAI Qin,ZHONG Mei-rong,WANG Jing,HE Xiang-yu(Shuyang Center for Diesase Control and Prevntion,Shuyang 223600,China) |
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| Abstract: | Objective:To establish a method for determination of cadium in crayfish by graphite furnace atomic absorption spectrophotometry after microwave digestion.Methods:Crayfish was digested by microwave technology,cadmium was determined by GFAAS.Results:This method had a good linearity in the range of 1.0 ng/ml~10.0 ng/ml(r=0.9992).The detection limit and the relative standard deviation were 0.001 mg/kg and 3.8%~4.8% respectively.The recoveries were 90.0%~105%.Conclusion:The method is simple and rapid,and it can ... |
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| Keywords: | Microwave digestion GFAAS Crayfish Cadmium |
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