Determination of the Content of Chlorophyll a in Surface Water

• 作者: Zheng Xiaoyan
• 来源期刊: 气象与环境研究：英文版
• 学科: 工学
• 关键词: 叶绿素A 地表水 测定 水含量 提取方法 太原地区 标准偏差 萃取法
• 年，卷（期）: 2014,（5）
• 页码范围: 3-5
• 页数: 3页
• 分类号: TQ441.41

摘要

Advantages and disadvantages of three extraction methods( acetone grinding,heating and freezing extraction methods) in determination of chlorophyll a in surface water were compared,and the distribution of chlorophyll a in the Fenhe River in Taiyuan region was discussed. The results showed that more chlorophyll a was extracted using acetone heating and freezing extraction methods compared with acetone grinding method,and standard deviation( SD) was smaller. Interference of pheophytin a was eliminated,so accuracy of chlorophyll a content was improved. Chlorophyll a content at points 1# and 2# in the upper reaches of the Fenhe River was lower than that at other points close to residential areas.