CAJ | 학술논문

用ICP—AES方法测定茶叶中稀土含量，并通过多次冲泡分析稀土浸出情况。结果表明，实验用茶样中稀土均能随，中泡不同程度溶入茶汤中，8种茶样的稀土浸出率与原稀土含量的高低不存在明显的线性关系，三次冲泡稀土浸出率在13％-26％之间。本次实验得出工夫红茶的三次；中泡浸出率为25．42％，钱塘龙井和普洱的三次冲泡浸出率相对最低，分别为13．89％和13．59％。除金尖和铁观音外，其余6种茶样的第一次浸出率最高．且随着浸泡次数的增多浸出速率逐渐降低。
용ICP—AES방법측정다협중희토함량，병통과다차충포분석희토침출정황。결과표명，실험용다양중희토균능수，중포불동정도용입다탕중，8충다양적희토침출솔여원희토함량적고저불존재명현적선성관계，삼차충포희토침출솔재13％-26％지간。본차실험득출공부홍다적삼차；중포침출솔위25．42％，전당룡정화보이적삼차충포침출솔상대최저，분별위13．89％화13．59％。제금첨화철관음외，기여6충다양적제일차침출솔최고．차수착침포차수적증다침출속솔축점강저。
Determination the rare earth content in tea by 1CP-AES, and analysis of the leaching rate through several brewing. Results showed that rare earth in tea can be extracted with varying degrees by brewing. The relationship between third brewing leaching rate and content of rare earth in original tea is not obvious. The leaching rate of rare earth from tea is between 13%-26%, and the Gongfu black tea is 25.42%, the lowest is Qiantang-longjin and pner tea, there are 13.89% and 13.59% respectively. And with the increase in the number brewing, rare earth leaching rates were reduced by most of tea except Jijian tea and Tieguanyin tea.