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基于吸光度联立方程组并选择一组合适的系数进行线性组合,提出了多波长吸光度数据线性组合分光光度法,得到的吸光度与被分析物浓度成正比,而与另一干扰物无关,从而消除干扰,本法能改善选择性与准确度,并具有测量波长较多与计算简便等特点,可用于两组分的单一或同时测定,已用于盐酸氯丙嗪与盐酸异丙嗪复方药物、雷琐辛复方涂剂等分析。
Based on the simultaneous equations of absorbance and selecting a set of suitable coefficients for linear combination, a linear combination spectrophotometric method with multi-wavelength absorbance data was proposed. The absorbance obtained is proportional to the concentration of the analyte but not to another interfering species, Interference, this method can improve the selectivity and accuracy, and has the characteristics of more measurement wavelength and calculation is simple and can be used for single or simultaneous determination of the two components, has been used in chlorpromazine hydrochloride and promethazine hydrochloride compound drugs, Lei Suoxin compound coating agent analysis.