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| 摘要: |
| 茶叶溶出物中Pb和Cd含量的测定,讨论的是采用开水浸泡法、超声波萃取法、干法灰化法及湿式消解法处理5种市售茶叶样品，并用火焰原子吸收光谱法测定其含量；结果表明不同茶叶品种中Pb和Cd含量有一定的差异，湿法消解中绿茶溶出的Pb含量超过国家限量标准；湿式消解法除碧螺春外，测得的Pb和Cd含量均高于干灰化法，超声波能萃取出茶叶Cd；5种茶叶品种开水浸泡后茶汤中仅特级花茶（成都）的一泡超过饮用水卫生标准值，二泡、三泡Pb和Cd均未检出，因此弃饮一泡茶基本无Pb和Cd危害. |
| 关键词: 含量，Pb和Cd，火焰原子吸收光谱法，茶叶 |
| DOI： |
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| Research on the Content of Pb and Cd in Some Teas |
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ZENG Xiang-yan,LI Qi-lin,KE Xue-fang
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| Abstract: |
| The detection of Pb and Cd contents in dissolved materials of five commercial teas is conducted by boiling water soaking method,ultrasonic extraction method,dry ashing method,wet digestion method and flame atomic absorption spectrometry,the result… |
| Key words: content,Pb,Cd,flame atomic absorption spectrometry,tea |
