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Chlorophyll fluorometer MICROSCOPY-PAM

chlorophyll fluorometer
chlorophyll fluorometer
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chlorophyll

Description

For probing of microscopic objects down to the single chloroplast The MICROSCOPY-PAM is an extremely sensitive non-imaging chlorophyll fluorometer, which can measure smallest spots in microscopic specimen like tissue preparations or suspensions. The fluorometer consists of a modified epi-fluorescence microscope equipped with a modulated LED light source and a photomultiplier for detection of modulated chlorophyll fluorescence. Outstanding Properties of the MICROSCOPY-PAM •Fluorescence detection by a highly sensitive red-enhanced photomultiplier tube •Single cell analysis •Version with blue or red light available Components of the MICROSCOPY-PAM The MICROSCOPY-PAM system uses a Zeiss AxioScope.A1 epifluorescence microscope. The standard version of the microscope is equipped with a wide-aperture Zeiss Fluar objective lens with 20-fold magnification, and a blue 470 nm Zeiss LED module for fluorescence excitation. A red-orange 625 nm Zeiss LED module is available as alternative light source. A special pulse modulation regime permits the use if the same LED module as source for measuring and actinic light as well as for saturation pulses. Chlorophyll fluorescence is detected by a photomultiplier mounted on a special detector-ocular of the microscope. The ocular is equipped with an iris diaphragm with which the field of view can be narrowed down. A special dichroic beamsplitter filterset filters out the broadband fluorescence emission (λ>650 nm). Fluorescence excitation and detection are controlled by the PAM-CONTROL unit, which allows stand-alone operation of the MICROSCOPY-PAM but also functions as an interface for operation of the system by a Windows computer.

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