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Diyala Journal for Pure Science

Scientific Refereed Journal Published By College of Science - University of Diyala


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Diyala Journal for Pure Science  DJPS


P- ISSN:2222-8373, E-ISSN:2518-9255

Volume 13, Issue 3, Part 2 , July. 2017


Determination of total protein in human blood by laser 


Sahra Salem Jassem , Abdul Rahman Rashid Mohammed


Year: 2017, Volume: 13, Issue: 3, Part: 2


Pages: 262-275, DOI: http://dx.doi.org/10.24237/djps.1303.PEB2 


Language: English


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The capabilities of laser analysis of total protein (TP) were studied. Semiconductor laser diode of 5-mW maximum power, (532) nm wavelength and (4) nm bandwidth is used as laser system (LS) to analyze and find the concentration of total protein (TP) in human blood serum.   All the absorption spectra of TP were measured with a UV–VIS spectrophotometer. The spectral plot showed that the maximum absorbance of (TP) is at the range (520-580nm) and the peak at (546) nm .The (LS) measurements included the study of absorbance (A) of (TP) as a function of cuvet thickness (t), transmittance (T)   as a function of (t) and (A) as a function of laser power. To ascertain our calculations, the results have been compared with the results of spectrophotometer. The (RSD %) values are about (0.67-17.18).


Keywords: Total proteins, Spectrophotometer, Colorimetric method, Laser. 

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