起订量:
水样调制叶绿素荧光仪——WATER-PAM
免费会员
主要功能
可测荧光诱导曲线并进行淬灭分析
可测光响应曲线和快速光曲线(RLC)
可测量水样的下列光合指标活性:
光合效率和光合速率(相对电子传递速率)
藻类的潜在光合效率(“生长潜能”)
藻类的光保护能力
藻类耐受强光的能力
51 个内置模式菜单,方便参数设置和标准测量
系统 I 用于浮游植物研究,系统 II 用于大型藻类研究,系统 III 用于连续监测水体光合作用
测量参数
Fo, Fm, Fv/Fm, F, Fm’, Fo’, Y(II) 即 ΔF/Fm’, qP, qN, NPQ, ETR 和 PAR 等
应用领域
测量野外自然水样或实验室培养的微藻样品的光合作用,三套系统可供选择,可应用于水生生物学、水域生态学、海洋学、湖沼学等领域,检测限达 0.1 μgChl/L。可用于有害藻华的早期预警。与 PHYTO-PAM 的区别在于,WATER-PAM 不能进行浮游植物分类。
主要技术参数
测量光:3 个波长为 650 nm 的 LED 阵列。
光化光:12 个波长为 660 nm 的 LED 阵列,连续光强 2000 μmol m-2 s-1。
饱和脉冲:12 个波长为 660 nm 的 LED 阵列,闪光强度 4000 μmol m-2 s-1。
远红光源:3 个波长为 740 nm 的 LED 阵列。
信号检测:光电倍增管检测器(H6779-01,Hamamatsu),过载保护功能,检测信号 λ > 710 nm。
数据存储:CMOS RAM 128 KB,可存储4000组数据。
选购指南
系统 I(主机 PAM-Control 和激发-检测单元 WATER-ED), 适合现场采水样测量或室内微藻测量 | |
系统II 激发-检测单元 WATER-EDF1.5, 适合大型海藻、附着藻类、水生植物等的测量 | 系统III 激发-检测单元 WATER-FT, 适合随船走航测量 |
三套系统的组成比较
系统组成 | ||||||
系统I 浮游植物版 | 系统II 附着藻类/大型藻类版 | 系统III 连续监测版 | ||||
野外现场或室内测量,样品为水样或藻液 | 野外现场或室内测量,样品为大型海藻、附着藻类、水生植物、苔藓、地衣、植物叶片等 | | 野外现场或室内测量,需要抽水上来,连续监测光合活性 | |||
可选附件 1:搅拌器,对于易发生沉降或上浮的样品非常重要 | 可选附件 1:平面状微型光量子探头,用于测量样品接收到的光强 | | ||||
可选附件 2:球状微型光量子探头,可放入系统 I 的样品杯中测量 PAR,也可放入水面下测量水体光场 | 可选附件 2:手持式多功能 PAR 辐射仪,用于连接平面状微型光量子探头后,进行独立的光强测量 | | ||||
可选附件 3:手持式多功能 PAR 辐射仪,用于连接球状微型光量子探头后,进行独立的光强测量 |
产地:德国 WALZ
参考文献
数据来源:光合作用文献 Endnote 数据库,更新至 2016 年 9 月,文献数量超过 6000 篇
原始数据来源:Google Scholar
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