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Position: Home > Articles > Determination of cadmium in shiitake mushroom by wet digestion method Journal of Agricultural University of Hebei 2014,37 (1) 88-90+97

湿式消解法测定香菇中镉的含量

作  者:
杨亚君;王春龙;王会君;陈桂荣;张金林
单  位:
河北农业大学植保学院;承德出入境检验检验局;河北省保定职业技术学院
关键词:
镉;火焰原子吸收;湿式消解;香菇
摘  要:
利用火焰原子吸收分光光度计,采用湿式消解法对香菇中镉的含量测定方法进行了研究。该方法的方法检出限为0.026mg/kg,实验室内变异系数CV%为4.90%~13.54%,加标回收率为79.33%~89.90%,标准曲线线性范围为0.01~1.0mg/L,回归方程Y=0.378 X+0.003,线性相关系数r2为0.9993。利用本方法和国标方法(GB/T5009.15-2003)分别对香菇样品中镉含量进行了测定,结果表明,2种方法的测定结果一致(P>0.05)。研究结果表明,该方法操作快速、简便、灵敏度高,能够满足检测需求。
译  名:
Determination of cadmium in shiitake mushroom by wet digestion method
作  者:
YANG Ya-jun;WANG Chun-long;WANG Hui-jun;CHEN Gui-rong;ZHANG Jin-lin;Cheng De Entry-Exit Inspection and Quarantine Bureau;Agricultur Bureau of Baoding;College of Plant Protection,Agricultural University of Hebei;
关键词:
cadmium;;flame atomic absorption;;wet digestion;;shiitake mushroom
摘  要:
The determination of cadmium in shiitake mushroom by Wet Digestion Method using flame atomic absorption was carried out in the paper.The least detection limit was 0.026mg/ kg,The variation and recovery of the method were 4.90%-13.54% and 79.33%-89.90%.The linear range,re-gression equation and correlation coefficient of the standard carve were 0.01-1.0mg/L,Y=0.378 X+0.003,and r2=0.9993.The concentrations of cadmium were determined by the study and the national standard.These results indicated that the was no significant difference between the two methods(P>0.05).It is concluded that this method is suitable for measuring cadmium in food to operate and has satisfactory accuracy.

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