中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共5条,第1-5条 帮助

条数/页: 排序方式:
Analysis of Antioxidant Properties and Compounds in Different Rosa Taxa Fruits Using UV-Vis and UPLC-TQ-MS Techniques 期刊论文  OAI收割
CHEMISTRY & BIODIVERSITY, 2024, 页码: 9
作者:  
Wang, Ning;  Xie, Li;  Tian, Li
  |  收藏  |  浏览/下载:5/0  |  提交时间:2024/11/26
Determination of chitosan content with Schiff base method and HPLC 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 2021, 卷号: 182, 页码: 1537-1542
作者:  
Miao, Qin;  Mi, Yingqi;  Cui, Jingmin;  Zhang, Jingjing;  Tan, Wenqiang
  |  收藏  |  浏览/下载:53/0  |  提交时间:2021/10/21
Comprehensive evaluation of NAODESHENG by combining UPLC quantitative fingerprint and antioxidant activity 期刊论文  OAI收割
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS, 2021, 卷号: 193, 页码: 7
作者:  
Liao, Jun-cheng;  Wu, Yun-shan;  Xu, Fang-fang;  Chen, Wei-ying;  Zheng, Zuo-liang
  |  收藏  |  浏览/下载:29/0  |  提交时间:2021/05/24
Determination of chitosan content with ratio coefficient method and HPLC 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 2020, 卷号: 164, 页码: 384-388
作者:  
Miao, Qin;  Cui, Yulin;  Zhang, Jingjing;  Mi, Yingqi;  Tan, Wenqiang
  |  收藏  |  浏览/下载:35/0  |  提交时间:2021/06/07
Fast determination of total ginsenosides content in Ginseng powder by near infrared reflectance spectroscopy (EI CONFERENCE) 会议论文  OAI收割
ICO20: Biomedical Optics, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
Near infrared (NIR) reflectance spectroscopy was used to develop a fast determination method for total ginsenosides in Ginseng (Panax Ginseng) powder. The spectra were analyzed with multiplicative signal correction (MSC) correlation method. The best correlative spectra region with the total ginsenosides content was 1660 nm1880 nm and 2230nm-2380 nm. The NIR calibration models of ginsenosides were built with multiple linear regression (MLR)  principle component regression (PCR) and partial least squares (PLS) regression respectively. The results showed that the calibration model built with PLS combined with MSC and the optimal spectrum region was the best one. The correlation coefficient and the root mean square error of correction validation (RMSEC) of the best calibration model were 0.98 and 0.15% respectively. The optimal spectrum region for calibration was 1204nm-2014nm. The result suggested that using NIR to rapidly determinate the total ginsenosides content in ginseng powder were feasible.