Determination of Cadmium and Lead in Sugarcane by Graphite Furnace Atomic Absorption Spectrometer with Zeeman Correction  

赛曼校正石墨炉原子吸收法测定甘蔗中的镉和铅(英文)

作　　者：王天顺[1,2] 方锋学[1,2] 杨玉霞[3] 梁俊[1,2] 莫磊兴[1,2] 范业赓[1,2] 唐昭领[1,2] 

机构地区：[1]广西甘蔗研究所,广西南宁530007 [2]农业部甘蔗品质监督检验测试中心,广西南宁53007 [3]广西农业科学院植物保护研究所,广西南宁530007

出　　处：《Agricultural Science & Technology》2011年第5期630-631,638,共3页农业科学与技术（英文版）

基　　金：Supported by Fund of Guangxi Sugarcane Research Institute(G2008011)~~

摘　　要：[Objective] The aim was to develop a rapid,simple method for determination of cadmium and lead in sugarcane samples by graphite furnace atomic absorption spectrometry.[Method] The method for determination of Cd and Pb in sugarcane by combined graphite furnace atomic absorption spectrometry and microwave digestion was used.[Result] The concentration curve was linear within the range of 0-0.80 μg/L the detection limits of Cd and Pb was 0.015 and 0.030 μg/L,respectively.The precision for elevenfold determination of Cd and of Pb at the 0.40 μg/L level were 1.8% and 2.3%（RSD）,respectively.Recoveries of 96.7%-98.2% for Cd and 104.6%-106.7% for Pb were obtained for two sugarcane samples and one certified reference material.[Conclusion] The proposed method has the advantages of simple operation,high sensitivity,and high efficiency;it was successfully used for determination of Cd and Pb in sugarcane samples.[目的]探索一种简单快捷的利用赛曼校正石墨炉原子吸收法测定甘蔗中的镉和铅的方法。[方法]利用微波消解样品,建立了石墨炉原子吸收法测定甘蔗样品的镉和铅的方法。[结果]镉和铅的校正曲线在0-0.80μg/L浓度范围内呈线性,检出限分别为0.015和0.030μg/L。2个甘蔗样品和1个有证标准物质镉和铅的加标回收率分别为96.7%-98.2%、104.6%-106.7%。[结论]该方法操作简单、灵敏度高、高效,适合甘蔗样品中镉和铅的测定。

关 键 词：Microwave digestion Graphite furnace-atomic absorption spectrometry CADMIUM LEAD SUGARCANE 

分 类 号：S566.1[农业科学—作物学]