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COMPREHENSIVE TWO-DIMENSIONAL LIQUID CHROMATOGRAPHY COUPLED WITH QUADRUPLE TIME-OF-FLIGHT MASS SPECTROMETRY FOR CHEMICAL CONSTITUENTS ANALYSIS OF TRIPTERYGIUM GLYCOSIDES TABLETS 被引量:11
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作者 Xiao Yao 《World Journal of Traditional Chinese Medicine》 2015年第4期66-66,共1页
Comprehensive two-dimensional liquid chromatography platform(LC×LC)coupled with quadrupole time-of-flight(QTOF)mass spectrometry(MS)is developed to separate,identify and relatively determine the chemical constitu... Comprehensive two-dimensional liquid chromatography platform(LC×LC)coupled with quadrupole time-of-flight(QTOF)mass spectrometry(MS)is developed to separate,identify and relatively determine the chemical constituents of two types of tripterygium glycosides tablets(TGT).The types and relative contents of the constituents discovered in two kinds of TGT tablets were subsequently compared.C8andC18 column were used for the separation of the first 展开更多
关键词 TGT COMPREHENSIVE TWO-DIMENSIONAL LIQUID CHROMATOGRAPHY COUPLED WITH QUADRUPLE TIME-OF-FLIGHT MASS SPECTROMETRY FOR CHEMICAL constituents analysis OF TRIPTERYGIUM GLYCOSIDES TABLETS
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ANALYSIS OF VOLATILE CONSTITUENTS OF CHINESE MEDICINAL HERBS BY FLASH DISTILLATION/CAPILLARY GAS CHROMATOGRAPHY/MASS SPECTROMETRY
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《Chemical Research in Chinese Universities》 SCIE CAS 1986年第1期13-18,共6页
In present work,the volatile constituents of Curcuma longa L.,A.lancea (Thunb.) DC.,Foeniculum vulgare Mill,and Cinnamomun cassia Presl.have been analyzed by flash distillation/capillary gas chro-matography/mass spect... In present work,the volatile constituents of Curcuma longa L.,A.lancea (Thunb.) DC.,Foeniculum vulgare Mill,and Cinnamomun cassia Presl.have been analyzed by flash distillation/capillary gas chro-matography/mass spectrometry.The results are consistent with those obtained by conventional steam distillation extraction method.The optimum condition of flash distillation has been studied.The experimental results showed that this new technique proved to be a simple,rapid and efficient tool for microanalysis of volatile constituents of Chinese medicinal herbs. 展开更多
关键词 OC analysis OF VOLATILE constituents OF CHINESE MEDICINAL HERBS BY FLASH DISTILLATION/CAPILLARY GAS CHROMATOGRAPHY/MASS SPECTROMETRY GAS
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Vitreous Humor:A Review of Biochemical Constituents in Postmortem Interval Estimation
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作者 Weichen Li Yunfeng Chang +4 位作者 Zijia Cheng Jiang Ling Leiming Han Xingmei Li Yanjun Ding 《Journal of Forensic Science and Medicine》 2018年第2期85-90,共6页
Postmortem changes in the biochemical constituents of the vitreous humor have been widely used to estimate the postmortem interval(PMI)over the past several decades.However,few reviews have summarized the relationship... Postmortem changes in the biochemical constituents of the vitreous humor have been widely used to estimate the postmortem interval(PMI)over the past several decades.However,few reviews have summarized the relationship between the postmortem vitreous biochemical constituents and time of death.Herein,the relationship between PMI and single biochemical components,including vitreous potassium,hypoxanthine,and amino acids,as well as comparisons of each statistical parameter in the formula,is summarized.We also discuss other compounds such as urea and uric acid,which have no direct relationship with PMI.Utility of multiple constituent simultaneous analysis for estimating PMI is being increasingly investigated.The promising idea of using simultaneous analysis of multiple constituents to determine PMI is proposed as a future research direction. 展开更多
关键词 Biochemical constituents multiple constituent analysis postmortem changes postmortem interval vitreous humor
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