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用恒温加速实验法进行了异山梨醇口服液的稳定性研究，初步探讨了调节其ｐＨ值的不同物质及不同ｐＨ值对其稳定性的影响。结果表明，Ｈ_３ＢＯ_３（ｐＨ３．８４）及维生素Ｃ（ｐＨ２．５４３条件下的和值较理想，光照对其稳定性影响较小。
The stability of isosorbide oral solution was studied by constant temperature accelerated experiment, and the effects of different substances and pH value on the stability of isosorbide oral solution were discussed preliminarily. The results showed that the sum of H_3BO_3 (pH3.84) and vitamin C (pH2.543) was more ideal, and the light had little effect on its stability.