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本文报告了1979年～1980年,在武汉医学院卫生系教师的指导下,用氟电极法测定了产于湖北省五个地区十三个县的71份(外省2份)商品茶叶(绿茶65份,花茶5份,红茶1份)的含氟量。测得含氟范围为32.5～400毫克/公斤,平均值为147.6毫克/公斤。在实验室仿照日常泡茶法,将含氟量不同的绿茶经沸水(去离子水)浸泡,以茶汁温度下降至50℃算作浸泡一次,室温为20℃,需时45分钟。结果茶叶含氟量的
This paper reports from 1979 to 1980 under the guidance of teachers in Wuhan Medical College Department of Health, fluoride electrode method was used to determine the production of 71 areas (two provinces outside the province) in 13 counties in Hubei Province commercial tea (green tea 65 5 parts of flowering tea, 1 part of black tea). The measured fluorine ranged from 32.5 to 400 mg / kg with an average of 147.6 mg / kg. In the laboratory modeled daily brewing method, the amount of fluorine content of green tea by boiling water (deionized water) soaked to tea juice temperature dropped to 50 ℃ count soaked once, room temperature was 20 ℃, take 45 minutes. The results of tea fluoride content