Beijing Hongzuo Shengwei Technology Co., Ltd
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LIFD230 Laser Induced Fluorescence Detector
Laser induced fluorescence detector (LIFD) is currently one of the most sensitive detectors used for detecting chemical and biological samples, widely
Product details
Technical parameters:
Relative Fluorescence Unit (RFU) 0-1000
Dynamic range (within 1000 RFU range)>104
Sensitivity (mol FITC/L)>1012
Baseline noise (RFU)<0.005
Baseline drift (RFU/h)<0.2
Excitation wavelength (nm) 473
Emission center wavelength (nm) 525 (510-540)
Laser type 10mW DPSS laser 473nm
Filter type>510nm long pass filter
Two color mirror with passband>490nm
510-540nm bandpass filter
Power supply requirements: AC, 110/220V, 50/60Hz
Working temperature range (℃) 15-35
Relative humidity<75%
Detection pool Z-type flow aperture 0.8mm, detection optical path 6.8mm, pool volume 3.42 μ L
Main features:
■ Brand new optical path system module
Using a semiconductor diode laser as the excitation light source and a confocal optical configuration, the background noise caused by Rayleigh scattering and Raman scattering is reduced;
Using a combination of long pass and band-pass filters on the emission path to reduce laser scattering entering the photomultiplier tube and improve the signal-to-noise ratio of the detector;
Optimize the numerical aperture of the focusing objective lens to match its working distance with its focusing ability, and use a large numerical aperture objective lens to increase its lighting efficiency.
■ Specialized detection pool module
Adopting a reflective Z-type detection cell, efficient fluorescence collection has been achieved, greatly improving the sensitivity of LIFD.
Specialized laser power module
Using high-frequency switching circuits to complete AC/DC conversion and precision integrated circuit feedback control.
Three terminal voltage regulator integrated chip, providing stable and reliable power supply for the entire circuit system; The matching laser power supply provides stable current for the laser.
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