[1]杨建伟.石墨炉原子吸收光谱法与电感耦合等离子体质谱法对大米粉中镉含量的检测价值分析[J].医学信息,2022,35(12):162-165.[doi:10.3969/j.issn.1006-1959.2022.12.040]
　YANG Jian-wei.Analysis on the Detection Value of Graphite Furnace Atomic Absorption Spectrometry and Inductively Coupled Plasma Mass Spectrometry[J].Medical Information,2022,35(12):162-165.[doi:10.3969/j.issn.1006-1959.2022.12.040]
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石墨炉原子吸收光谱法与电感耦合等离子体质谱法对大米粉中镉含量的检测价值分析()
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医学信息[ISSN:1006-1959/CN:61-1278/R]

卷:
35卷
期数:
2022年12期
页码:
162-165
栏目:
论著
出版日期:
2022-06-15

文章信息/Info

Title:
Analysis on the Detection Value of Graphite Furnace Atomic Absorption Spectrometry and Inductively Coupled Plasma Mass Spectrometry
文章编号:
1006-1959（2022）12-0162-04
作者:
杨建伟
（天津市宝坻区疾病预防控制中心理化检验科，天津 301800）
Author(s):
YANG Jian-wei
(Department of Physical and Chemical Laboratory,Tianjin Baodi Center for Disease Control and Prevention,Tianjin 301800,China)
关键词:
镉; 石墨炉原子吸收光谱法; 电感耦合等离子体质谱法; 大米粉; 食品重金属检测
Keywords:
Cadmium; Graphite furnace atomic absorption spectrometry; Inductively coupled plasma mass spectrometry; Rice flour; Food heavy metal detection
分类号:
R657；TS213.3
DOI:
10.3969/j.issn.1006-1959.2022.12.040
文献标志码:
A
摘要:
目的 比较石墨炉原子吸收光谱法（GFAAS）与电感耦合等离子体质谱法（ICP-MS）对大米粉中镉含量的检测价值。方法 取同一规格大米粉为样品，经微波消解前处理后，采用GFAAS法与ICP-MS法进行镉含量检测，对比两种方式的标准曲线方程、检出限、准确度、精密度、加标回收率、平行实验精密度及不确定度。结果 GFAAS法与ICP-MS法的相关系数及检出限均符合国家规定标准，其中ICP-MS法的检出限低于GFAAS法；ICP-MS法的准确度及精密度均高于GFAAS法，且ICP-MS法的加标回收率高于GFAAS法；ICP-MS法在平行试验中的精密度高于GFAAS法；ICP-MS法的各项不确定度均小于GFAAS法。结论 相较于GFAAS法，ICP-MS法在大米粉镉含量检测中的检出限更低，且准确度、精密度及加标回收率更高，不确定度较低。
Abstract:
Objective To compare the detection value of graphite furnace atomic absorption spectrometry (GFAAS) and inductively coupled plasma mass spectrometry (ICP-MS) for cadmium content in rice flour.Methods The same specification of rice flour was taken as the sample. After pretreatment by microwave digestion, the cadmium content was detected by GFAAS and ICP-MS, and the standard curve equation, detection limit, accuracy, precision, recovery rate, parallel experiment precision and uncertainty of the two methods were compared.Results The correlation coefficient and detection limit of GFAAS and ICP-MS met the national standards, and the detection limit of ICP-MS was lower than that of GFAAS. The accuracy and precision of ICP-MS were higher than those of GFAAS, and the recovery rate of ICP-MS was higher than that of GFAAS. The precision of ICP-MS method in parallel test was higher than that of GFAAS method. The uncertainties of CP-MS method were all smaller than those of GFAAS method.Conclusion Compared with GFAAS method, ICP-MS method has lower detection limit, higher accuracy, precision and recovery rate, and lower uncertainty in the detection of cadmium content in rice flour.

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更新日期/Last Update: 1900-01-01