Biomedical subjects

Guo-zhong Cheng

Publications and source records attributed to Guo-zhong Cheng.

2 recordsLinked to original sources

PubMed2005

[Research on the transformation of GBC-918 spectrophotometric data into text data].

This paper introduces the principle of designing resident program which can be used to obtain GBCUV screen pictures. First, the spectrophotometric data of refinery waste water, phenol and aniline were obtained by using GBCUV software. Second, the data mentioned above were transformed into text data with TXTSR.COM and TXZH.EXE. Finally, after the text data of refinery waste water were processed by Kalman filtering, the recoveries of phenol and aniline were in the range of 99.0%-103.8% and 97.8%-100.6% respectively. In conclusion, using this software can enlarge the application of GBC-918 and meet the need of modem spectral analysis.

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PubMed2002

[Dichotomizing method applied to calculating equilibrium constant of dimerization system].

The arbitrary trivariate algebraic equations are formed based on the combination principle. The univariata algebraic equation of equilibrium constant kappa for dimerization system is obtained through a series of algebraic transformation, and it depends on the properties of monotonic functions whether the equation is solvable or not. If the equation is solvable, equilibrium constant of dimerization system is obtained by dichotomy and its final equilibrium constant of dimerization system is determined according to the principle of error of fitting. The equilibrium constants of trisulfophthalocyanine and biosulfophthalocyanine obtained with this method are 47,973.4 and 30,271.8 respectively. The results are much better than those reported previously.

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