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| 微波消解-石墨炉原子吸收法测定蔬菜中痕量铅和镉 |
| Determ ination ofTrace AmountofLead and Cadm ium in Vegetablesbythe M icrowave Dispels - Graphite Stove A tom Absorption Law |
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| DOI： |
| 中文关键词: 微波 消解 石墨炉原子吸收光谱分析 铅 镉 蔬菜 |
| 英文关键词: M icrowave Resolution Graphitefurnace atomic absorption spectrom etry Lead Cadmium V egetables |
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| 摘要点击次数: 1414 |
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| 中文摘要: |
| 采用微波消解-石墨炉原子吸收法测定蔬菜中痕量铅和镉, 优化了微波消解程序和石墨炉工作条件, 讨论了基体改进剂和微波消解用酸的选择。该方法测定蔬菜中铅和镉的检出限为0.002 mg/kg和0.001 m g/kg, RSD 为 0.1% ~4.3% , 加标回收率为98.0% ~ 104% 。 |
| 英文摘要: |
| Thepaperusedthe microwave dispe-lgraphitestoveatom absorption law to determinethetrace amountofLead and Cadmium invegetables, optmiizedprocedureofthemicrowavedispelandworking condition of the graphitestove, discussedthesubstrate miprovementmedicinalpreparation andacid-used choiceofthemicrowavedispels. Inthis methodthe determinationlmiitofLeadandCadmium invegetablesis0.002mg/kgand 0.001 mg/kgrespectivelyand RSD is0.1% ~ 4.3% aswellasreturns-ratioofaddingthesignis98.0% ~ 104%. |
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