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氯磺丙脲与尿素固体分散体的测定及稳定性

The assay and stability of chlorpropamide in solid dispersion with urea.

作者信息

Ford J L, Stewart A F, Rubinstein M H

出版信息

J Pharm Pharmacol. 1979 Nov;31(11):726-9. doi: 10.1111/j.2042-7158.1979.tb13645.x.

DOI:10.1111/j.2042-7158.1979.tb13645.x
PMID:41900
Abstract

Thin layer chromatography followed by reflectance densitometry has been used to evaluate the stability of chlorpropamide-urea during the fusion process. Urea was found to decompose to biuret and chlorpropamide to p-chlorobenzenesulphonamide: several other unidentified decomposition products were detected. The energy for decomposition of chlorpropamide was 57.1 kJmol-1 for melts containing 15 and 30% chlorpropamide. Decomposition followed apparent first order kinetics.

摘要

采用薄层色谱法并结合反射密度测定法来评估氯磺丙脲 - 尿素在熔融过程中的稳定性。发现尿素分解生成缩二脲,氯磺丙脲分解生成对氯苯磺酰胺:还检测到了其他几种未鉴定的分解产物。对于含有15%和30%氯磺丙脲的熔体,氯磺丙脲的分解能量为57.1 kJmol-1。分解遵循表观一级动力学。

相似文献

1
The assay and stability of chlorpropamide in solid dispersion with urea.氯磺丙脲与尿素固体分散体的测定及稳定性
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Phase equilibria and stability characteristics of chlorpropamide-urea solid dispersions.
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Selective assay procedure for chlorpropamide in the presence of its decomposition products.在氯磺丙脲存在其分解产物的情况下对氯磺丙脲进行选择性测定的方法。
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Stability-indicating high-performance liquid chromatographic determination of chlorpropamide, tolbutamide, and their respective sulfonamide degradates.氯磺丙脲、甲苯磺丁脲及其各自磺酰胺降解产物的稳定性指示高效液相色谱测定法
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