摘要
为了建立一种快速分析鉴别不同类型的中药昆布的方法,采用热重—微分热重(TG-DTG)和差热分析(DTA)对不同产地的海带和昆布进行热分析研究.以α-Al2O3为参照物,N2为气氛的条件下,固定反应的升温速率和温度范围,进行图谱峰形的比较鉴别.结果表明,不同产地的海带和昆布之间TG、DTG、DTA图谱中峰形有所不同,利用海带和昆布热分析图谱的差异,可以快速鉴别不同产地的中药昆布.
In order to establish a rapid analysis method of identifying Laminaria japonica Aresch. and Ecklonia kurome Okam. , the themogravimetric analysis research is performed for Laminaria japonica Aresch. and Ecklonia ku- rome Okam. from different areas using the methods of the themogravimetric-differential themogravimetric analysis （TG- DTG） and differential themogravimetric analysis（DTA）, α-Al203 was taken as the reference substance and under N2 condition, with the fixed heating rate and temperature range of the herbs, the herbs were identified by com- paring the chromatography. There were differences in TG, DTG and DTA chromatography between Laminaria japon- ica Aresch. and Ecklonia kurome Okam from different places. According to the differences in the thermal properties of Laminaria japonica Aresch. and Ecklonia kurome Okam. , it is convenient to identify the two varieties of Thallus laminariae thallus eckloniae.
出处
《曲阜师范大学学报（自然科学版）》
CAS
2013年第2期95-97,共3页
Journal of Qufu Normal University(Natural Science)
基金
山东省科技发展计划项目(2012GGE27100)资助
关键词
热重
微分热重
差热
海带
昆布
themogravimetric analysis
differential themogravimetric analysis
differential thermal analysis
Laminaria japonica Aresch.
Ecklonia kurome Okam.
