| 火焰原子吸收光谱法测定海木耳中3种重金属 |
| |
| 引用本文： | 曾艳霞,马卫兴,沙鸥.火焰原子吸收光谱法测定海木耳中3种重金属[J].理化检验(化学分册),2011(7). |
| |
| 作者姓名： | 曾艳霞 马卫兴 沙鸥 |
| |
| 作者单位： | 江苏省海洋资源开发研究院甲壳素研发中心;淮海工学院化工学院; |
| |
| 基金项目： | 江苏省海洋生物技术重点实验室基金资助项目(2005HS010) |
| |
| 摘 要： | 采用火焰原子吸收光谱法(FAAS)测定了海木耳中3种重金属(铜、铅和镉)。将海木耳样品去柄后剪碎并在烘箱中烘干至恒重,称取干燥样品1.0000g,分次用硝酸-高氯酸(9+1)混合酸10mL消解至溶解完全,定容至10mL,用FAAS按选定的仪器工作条件测定其中的铜、铅和镉量。对同一样品的上述3元素作5次平行测定,测定值的相对标准偏差依次为2.0%,3.2%及2.5%。用标准加入法测得方法的回收率为95.4%(铜),95.3%(铅)及103.0%(镉)。在测定结果中除铜量外,铅量及镉量均分别超过国家标准规定允许量的34.3倍和13.9倍。
|
| 关 键 词： | 火焰原子吸收光谱法 铜 铅 镉 海木耳 |
FAAS Determination of 3 Heavy Metals in Sarcodia Ceylonensis |
| |
| ZENG Yan-xia,MA Wei-xing,SHA Ou.FAAS Determination of 3 Heavy Metals in Sarcodia Ceylonensis[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2011(7). |
| |
| Authors: | ZENG Yan-xia MA Wei-xing SHA Ou |
| |
| Institution: | ZENG Yan-xia~1,MA Wei-xing~2,SHA Ou~2 (1.Center of Research and Development of Chitin,Jiangsu Provincial Research Institute of Marine Resources,Lianyungang 222005,China,2.Dept.of Chem.Eng.,Huaihai Institute of Engineering,China) |
| |
| Abstract: | 3 Heavy metals,i.e.,Cu.Pb and Cd,in Sarcodia ceylonensis were determined by FAAS.Sample of Sarcodia ceylonensis was cut into pieces and dried in an oven to constant weight.For determination of Cu, 1.000 0 g of the dried sample was taken and digested with 10 mL portions of mixed acid of HNO_3-HClO_4(9 + 1) until complete dissolution was attained.The solution was made up to 10 mL in a volumetric flask and used for FAAS analysis.In 5 determinations for the 3 elements in a same sample,values of RSD(n=5) found w... |
| |
| Keywords: | FAAS Copper Lead Cadmium Sarcodia ceylonensis |
| 本文献已被 CNKI 等数据库收录！ |
|
