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通过毛细管压入法和反相气相色谱法测定微晶纤维素的表面能

Surface energy of microcrystalline cellulose determined by capillary intrusion and inverse gas chromatography.

作者信息

Steele D Fraser, Moreton R Christian, Staniforth John N, Young Paul M, Tobyn Michael J, Edge Stephen

机构信息

Pharmaceutical Technology Research Group, Department of Pharmacy & Pharmacology, University of Bath, Bath BA2 7AY, UK.

出版信息

AAPS J. 2008 Sep;10(3):494-503. doi: 10.1208/s12248-008-9057-0. Epub 2008 Oct 8.

DOI:10.1208/s12248-008-9057-0
PMID:18841480
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2761700/
Abstract

Surface energy data for samples of microcrystalline cellulose have been obtained using two techniques: capillary intrusion and inverse gas chromatography. Ten microcrystalline cellulose materials, studied using capillary intrusion, showed significant differences in the measured surface energetics (in terms of total surface energy and the acid-base characteristics of the cellulose surface), with variations noted between the seven different manufacturers who produced the microcrystalline cellulose samples. The surface energy data from capillary intrusion was similar to data obtained using inverse gas chromatography with the column maintained at 44% relative humidity for the three samples of microcrystalline cellulose studied. This suggests that capillary intrusion may be a suitable method to study the surface energy of pharmaceutical samples.

摘要

已使用两种技术获得了微晶纤维素样品的表面能数据

毛细管侵入法和反相气相色谱法。使用毛细管侵入法研究的十种微晶纤维素材料，在测量的表面能学方面（就纤维素表面的总表面能和酸碱特性而言）显示出显著差异，在生产微晶纤维素样品的七个不同制造商之间观察到了变化。对于所研究的三种微晶纤维素样品，毛细管侵入法得到的表面能数据与在相对湿度44%下使用反相气相色谱法获得的数据相似。这表明毛细管侵入法可能是研究药物样品表面能的一种合适方法。

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