国产一卡2卡三卡4卡麻豆_了解最新日韩草逼视频_h片在线播放一区_国产激情影视在线_好了av四色综合无码久久_欧美黑白双插OOR720P_日本精品中文字幕在线_秋霞午夜手机影院_亚洲国产一区二区3da毛片_欧美杂交深喉video中文字幕

The shelf life of a pharmaceutical depends ultimay on the stability of the active pharmaceutical ingredient in the formulation. The most common method for characterizing the stability of a new drug candidate is to stress it at elevated temperatures. Using microcalorimetry, samples can be thermally stressed while simultaneously exposing the compound to other degradative conditions such as high or low pH, high humidity, hydrogen peroxide, etc. The rate of heat evolution by the sample under different stressing conditions provides a direct indication of the stability of the compound under those conditions. Since the measurements are generally completed in a matter of hours, calorimetry provides a rapid approach for screening the stability of compounds; more traditional approaches such as HPLC can then be used to determine the degradation products produced over time.

提供商	TA儀器	下載次數	29次
資料大小	342.3KB	資料類型	PDF 文件 免費下載該資料
資料圖片	--	瀏覽次數	152次