叶绿素荧光检测技术及仪器的研究.pdf

31 6 Vol31 No6 2010 6 Chinese JournalofScientific Instrument Jun. 2010 * 1 1 1 2 2 1 赵友全, 魏红艳 , 李 丹, 刘宪华 , 张 鑫 , 刘子毓 ( 1 300072; 2 300072) : , , ,, : ; ; ; : X85 : A : 610. 3040 Research on the technique and instrum ent of chlorophyll fluorescencem easurem ent 1 1 1 2 2 1 ZhaoYouquan, W eiHongyan, Li an, Liu Xianhua, ZhangXin, Liu Ziyu (1 College of P recision Instrum ent and Op toE lectronics Engineering, Tianj in Un iversity, T ianj in 3000 2, China; 2 School of Environm ental Science and Eng ineering, T ianj in University, Tianj in 3000 2, Ch ina) Abstract: W ater bloom in lakes brings a great danger to daily life and production, which is prmi arily due towater eutrophication and rapid increaseof the amount of algae and phytoplankton. As an indicator ofwater eutrophication, rapid detection of chlorophyll content in water can predict the extent ofwater eutrophication and pollution. Based on the spectralcharacteristics of chlorophyll fluorescence, this paper reports a new technique for themeasurementof eu - 6 trophication and a chlorophyll fluorescence detecting instrument. The sensitivity of the instrument is up to 3 10 . A lot of expermi ents of tracking the distribution and growth of phytoplankton, and the mi pactof clmi ate changewere carried out in the Jingye lake in T ianjinUniversity. K ey words: water bloom; eutrophication; chlorophyl;l fluorescence spectrum , 1 a