CAJ | 학술논문

用电感耦合等离子体原子发射光谱仪（ICP‐AES）分析茶叶在不同的浸泡条件下茶汤中的Cd、Cr、Cu、Fe、Ni、Pb、Ti、Co、Mn、Zn等10种重金属溶出规律。试验结果表明，选择合适的浸泡条件对重金属的摄入控制在最小范围内具有重要作用。同时探明了不同茶叶中同种重金属元素和同种茶叶中各重金属元素在3种不同浸泡方式的浸出率变化与茶叶中重金属的来源途径有关，重金属的污染来源于土壤，则比较难浸出，重金属的污染由大气沉降或者加工过程中引入，则比较易浸出。
용전감우합등리자체원자발사광보의（ICP‐AES）분석다협재불동적침포조건하다탕중적Cd、Cr、Cu、Fe、Ni、Pb、Ti、Co、Mn、Zn등10충중금속용출규률。시험결과표명，선택합괄적침포조건대중금속적섭입공제재최소범위내구유중요작용。동시탐명료불동다협중동충중금속원소화동충다협중각중금속원소재3충불동침포방식적침출솔변화여다협중중금속적래원도경유관，중금속적오염래원우토양，칙비교난침출，중금속적오염유대기침강혹자가공과정중인입，칙비교역침출。
With ICP‐AES method ,heavy metals in tea infusion ,including Cd , Cr , Cu , Fe , Ni , Pb , Ti , Co , Mn and Zn ,were detected under different tea soaking conditions .The results showed that suitable conditions of soaking tea could effectively control heavy metal intake within minimum range .Leaching rates of heavy metals were compared between different tea kinds with same soaking conditions or among three soaking conditions for same tea . Results showed that the leaching rates of heavy metals in tea were related to the source of heavy metals .Heavy metals in tea originated from the soil were difficult to leach ,whereas heavy metals originated from atmospheric precipitation or introduced during the machining process were easier to leach .