四川名茶矿质元素含量研究

1材料与方法1．1材料以永川秀芽、万春银叶、巴山雀舌、蒙顶春露、龙湖翠、青城雪芽、雨城云雾、红岩迎春、鹤林仙茗、竹叶青、沫若香茗、宝顶茶、雨前茶13个四川省较有影响的名茶作为试料。这些名茶覆盖四川雅安、乐山、宜宾等13地、市、县茶叶主产区，并包含了历史名茶、恢复名茶及创新名茶3类，故具有一定的代表性；此外，另征集了13个普通绿茶样作对照。

Analysis of Mineral Elements in 13 Famous Tea Varieties in Sichuan Province

This study was to analyze the mineral elements in famous tea varieties in Sichuan Province. Eighteen mineral elements in the samples of 13 famous tea varieties in Sichuan Province were measured via related instruments. The results showed, of all the 18 measured samples, that the contents of K, P, S, Ca and Mg were relatively higher(>1 500 mg/kg) in famous tea varieties in Sichuan Province, while those of Ba, Cr, V, Co and Se were relatively lower(< 10 mg/kg); compared to common green tea, the famous tea varieties in Sichuan Province contained higher contents of K, Zn, P, Na, Ni, Cu, S, Se and Co(0.38%-115.65% higher than that in common green tea), and lower contents of Mg, Mn, Al, Ca, V, Rb, Fe and Cr(7.20%-46.67% lower than that in common green tea); of the 13 tested tea varieties, Hongyanyingchun, Yongchuanxiuya and Qingchengxueya were rich in mineral elements, while Yuchengyunwu and Yuqiancha lacked in mineral elements. The results show that Hongyanyingchun, Yongchuanxiuya and Qingchengxueya are the elites in the famous tea varieties in Sichuan Province.