To meet the demands of the post-genomic era study and the large parallel detections of epidemic diseases and drug
screening, the high throughput micro-fluidic detection system is needed urgently. A scanning laser induced fluorescence
detection system based on optical fiber has been established by using a green laser diode double-pumped solid-state laser
as excitation source. It includes laser induced fluorescence detection subsystem, capillary array electrophoresis
micro-chip, channel identification unit and fluorescent signal processing subsystem. V-shaped detecting probe composed
with two optical fibers for transmitting the excitation light and detecting induced fluorescence were constructed. Parallel
four-channel signal analysis of capillary electrophoresis was performed on this system by using Rhodamine B as the
sample. The distinction of different samples and separation of samples were achieved with the constructed detection
system. The lowest detected concentration is 1×10-5 mol/L for Rhodamine B. The results show that the detection system
possesses some advantages, such as compact structure, better stability and higher sensitivity, which are beneficial to the
development of microminiaturization and integration of capillary array electrophoresis chip.
KEYWORDS: Medical imaging, Computer programming, Data modeling, Color difference, Modulation, Ions, Phase shift keying, Medical diagnostics, Phase modulation, Transmittance
This paper gives a color analysis of the nonlinear phase modulation for density pseudocolor encoding technique in medical application. Theoretically, instead of the traditional rectangular model, a trapezoid model is used for calculating chromaticity of the image. Thus a color specification using this technique can be set up as a guide for medical diagnosis. Some medical color images and a new sample modality are also presented.
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