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目的了解四川省藏区市售各种品牌砖茶氟含量。方法2006年在10个藏族集聚县的100个乡镇中,采集居民饮用的砖茶品种,并用氟离子选择电极法测定氟含量。结果24个品牌632份砖茶氟含量为367.00～1671.20mg/kg,平均为875.9mg/kg,云南大理下关砖茶氟含量最低,雅安市荥经县产砖茶氟含量最高,在四川境内以平武县和都江堰市产砖茶氟含量相对较低。结论藏族居民饮用砖茶氟含量严重超标,是当地居民氟中毒危害的主要原因。
Objective To understand the various brands of brick tea fluorine content in the Tibetan area of Sichuan Province. Methods In 2006, 100 brick and tea varieties dwelled by residents were collected from 100 villages and towns in 10 Tibetan agglomeration counties, and fluoride content was determined by fluoride ion selective electrode method. Results The fluoride content of 632 brick and tea of 24 brands was 367.00-1671.20 mg / kg with an average of 875.9 mg / kg. The content of fluorine in brick tea was the lowest in Xiaguan, Dali, Yunnan. County and Dujiangyan city brick tea content of fluorine is relatively low. Conclusion The fluoride content of brick tea consumed by Tibetan residents is seriously over-standard, which is the main reason of fluorosis poisoning by local residents.