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- W848342890 abstract "On a partition chromatographic column in which the support is Kieselguhr and the stationary phase is sulfuric acid solution (2 mol/L), three components of compound theophylline tablet were simultaneously eluted by chloroform and three other components were simultaneously eluted by ammonia-saturated chloroform. The two mixtures were determined by computer-aided convolution curve method separately. The corresponding average recovery and relative standard deviation of the six components were as follows: 101.6, 1.46% for caffeine; 99.7, 0.10% for phenacetin; 100.9, 1.31% for phenobarbitone; 100.2, 0.81% for theophylline; 99.9, 0.81% for theobromine and 100.8, 0.48% for aminopyrine." @default.
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- W848342890 date "1993-01-01" @default.
- W848342890 modified "2023-09-23" @default.
- W848342890 title "[Determination of six main components in compound theophylline tablet by convolution curve method after prior separation by column partition chromatography]." @default.
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