安徽农业科学2012，Vol.40Issue(25)：12640-12641,2.
超声提取离子色谱法测定茶叶浸出液中的氟化物
Determination of Fluoride in Tea Extract with Ion Chromatography Method and Ultrasonic Extraction Process
摘要
Abstract
[Objective]The study aimed to analyze the changing trends of surface water quality and their causes of Weihe River in Shaanxi Province over past ten years.[Method]Based on the available monitoring data of Weihe River in Shaanxi Province from 2001 to 2010, the changing trends of surface water quality of Weihe River in Shaanxi Province during recent ten years were assessed according to the Assessment Method of Surface Water Quality and Environmental Quality Standards for Surface Water ( GB 3838-2002). Moreover, the possible reasons for the trends were also proposed.[Result]From 2001 to 2010, there was a relatively decreasing trend of water pollution in Weihe River due to the considerable decline in the content of the main environmental pollutants like permanganate index, 5-day biochemical oxygen demand (BOD5), ammonia nitrogen, petroleum and volatile phenol. Meanwhile, its comprehensive pollution index fell by 62.7% , eliminating Weihe River' s black and stink on schedule. However, the overall surface water quality of Weihe River was still polluted heavily in each year, and the control of Xi' an section should be paid more attention to.[Conclusion]The research could provide scientific references for the comprehensive environmental control of Weihe River in Shaanxi Province.关键词
离子色谱/茶叶浸出液/氟含量Key words
Ion chromalography/Tea extract/Content of fluoride分类
农业科技引用本文复制引用
曾可,周旭,申茂泉,何希..超声提取离子色谱法测定茶叶浸出液中的氟化物[J].安徽农业科学,2012,40(25):12640-12641,2.
