APPLICATION OF LINEAR REGRESSION METHOD OF MULTIWAVELENGTH DATA AND ORTHOGONAL FUNCTIONS SPECTROPHOTOMETRY——DETERMINATION OF SULFAMETHOXAZOLE AND TRIEMETHOPRIM IN CO-TRIMOXAZOLE TABLETS
Shang Jingchuan and Ouyang Yu. APPLICATION OF LINEAR REGRESSION METHOD OF MULTIWAVELENGTH DATA AND ORTHOGONAL FUNCTIONS SPECTROPHOTOMETRY——DETERMINATION OF SULFAMETHOXAZOLE AND TRIEMETHOPRIM IN CO-TRIMOXAZOLE TABLETS[J]. Journal of Chongqing Medical University, 1989,(4):330-333.
Shang Jingchuan and Ouyang Yu. APPLICATION OF LINEAR REGRESSION METHOD OF MULTIWAVELENGTH DATA AND ORTHOGONAL FUNCTIONS SPECTROPHOTOMETRY——DETERMINATION OF SULFAMETHOXAZOLE AND TRIEMETHOPRIM IN CO-TRIMOXAZOLE TABLETS[J]. Journal of Chongqing Medical University, 1989,(4):330-333. DOI: 10.13406/j.cnki.cyxb.1989.04.023.
The linear regression method of multiwavelength data and orthogonal functions spectropho-tomtry have been used for the determination of sulfamethoxazole and triemethoprim in co-trimo-xazole tablets without any preliminary separation.The methods are simple and rapid.Good results have been obtained. The average recovery of sulfamethoxazole was 99.72-100.5%
with coefficient of variation below 0.48%
and the average recovery of triemethoprim was 99.26-99.46%
with coefficient of variation below 0.83%. The accuracy and precision meet the requirements of analysis of the pharmaceutical preparations
关键词
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Keywords
Linear regression methodOrthogonal functions methodco-trimoxazole tabletsSulfamethoxzoleTriemethoprim