摘要
该实验探索建立差示扫描量热法鉴别珍珠粉和贝壳粉真伪。使用密封式铝坩埚封装样品,测定条件为升温速率10℃·min^(-1),样品量3 mg,氮气流速为40 mL·min^(-1)。结果表明珍珠粉及贝壳粉热焓值具有明显差异。该法可用于珍珠粉及贝壳粉鉴别,方法操作简便、结果准确。
The paper is aimed to establish a methods for identication of pearl powder and conch powder from different origins. Her- metic aluminum pan was used to encapsulate samples. The optimal testing conditions were: heating rate 10℃ · min-1, sample weight 3mg and nitrogen gas flow rate 40 mL · min-1 The enthalpy values of pearl powder and conch powder was obvious different. Identica- tion of pearl powder and conch powder by DSC is a practical method for its accuracy, convenience and practificality.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2015年第8期1459-1462,共4页
China Journal of Chinese Materia Medica
基金
国家"重大新药创制"科技重大专项(2014ZX09304307-002)
国家自然科学基金青年项目(81202909)
中国食品药品检定研究院中青年发展研究基金项目(2014A7)
关键词
珍珠粉
贝壳粉
差示扫描量热法
鉴别
pearl powder
conch powder
differential scanning calorimetry (DSC)
identification