A new reaction system to determine nonlinear chemical fingerprint(NCF)and its use in identification method based on double reaction system was researched.Panax ginsengs,such as ginseng,American ginseng and notoginseng...A new reaction system to determine nonlinear chemical fingerprint(NCF)and its use in identification method based on double reaction system was researched.Panax ginsengs,such as ginseng,American ginseng and notoginseng were identified by the method.The NCFs of the three samples of Panax ginsengs were determined through two nonlinear chemical systems,namely system 1 consisting of sample components,H2SO4,MnSO4,NaBrO3,acetone and the new system,system 2 consisting of sample components,H2SO4,(NH4)4Ce(SO4)2,NaBrO3 and citric acid.The comparison between the results determined through systems 1 and 2 shows that the speed to determine NCF through system 2 is much faster than that through system 1;for systems 1 and 2,the system similarities of the same kind of samples are≥98.09%and 99.78%,respectively,while those of different kinds of samples are≤63.04%and 86.34%,respectively.The results to identify the kinds of some samples by system similarity pattern show that both the accuracies of identification methods based on single system 1 and 2 are≥95.6%,and the average values are 97.1%and 96.3%,respectively;the accuracy of the method based on double system is≥97.8%,and the average accuracy is 99.3%.The accuracy of the method based on double system is higher than that based on any single system.展开更多
病例男,46岁,2年前突发高热、寒战,于外院诊断为感染性心内膜炎。本次复查,心电图提示窦性心动过速,超声心动图:主动脉瓣右冠瓣较大,左冠瓣较小(图1a),右冠状动脉起始处位于超声心动图主动脉短轴根部1点钟位置,靠近肺动脉瓣环,内径增宽...病例男,46岁,2年前突发高热、寒战,于外院诊断为感染性心内膜炎。本次复查,心电图提示窦性心动过速,超声心动图:主动脉瓣右冠瓣较大,左冠瓣较小(图1a),右冠状动脉起始处位于超声心动图主动脉短轴根部1点钟位置,靠近肺动脉瓣环,内径增宽约9.5 mm(图1b),先向左前走行一段后,向右向后迂曲延伸,于左室下后壁破人左室内二尖瓣环下方(图1c),瘘口大小约7.6 mm n,彩色多普勒于左室舒张期探及彩色镶嵌的分流信号,峰速约4 m/s。展开更多
基金Project(61533021)supported by the National Natural Science Foundation of ChinaProject(R201706)supported by Hunan Food Pharmaceutical,China
文摘A new reaction system to determine nonlinear chemical fingerprint(NCF)and its use in identification method based on double reaction system was researched.Panax ginsengs,such as ginseng,American ginseng and notoginseng were identified by the method.The NCFs of the three samples of Panax ginsengs were determined through two nonlinear chemical systems,namely system 1 consisting of sample components,H2SO4,MnSO4,NaBrO3,acetone and the new system,system 2 consisting of sample components,H2SO4,(NH4)4Ce(SO4)2,NaBrO3 and citric acid.The comparison between the results determined through systems 1 and 2 shows that the speed to determine NCF through system 2 is much faster than that through system 1;for systems 1 and 2,the system similarities of the same kind of samples are≥98.09%and 99.78%,respectively,while those of different kinds of samples are≤63.04%and 86.34%,respectively.The results to identify the kinds of some samples by system similarity pattern show that both the accuracies of identification methods based on single system 1 and 2 are≥95.6%,and the average values are 97.1%and 96.3%,respectively;the accuracy of the method based on double system is≥97.8%,and the average accuracy is 99.3%.The accuracy of the method based on double system is higher than that based on any single system.
文摘病例男,46岁,2年前突发高热、寒战,于外院诊断为感染性心内膜炎。本次复查,心电图提示窦性心动过速,超声心动图:主动脉瓣右冠瓣较大,左冠瓣较小(图1a),右冠状动脉起始处位于超声心动图主动脉短轴根部1点钟位置,靠近肺动脉瓣环,内径增宽约9.5 mm(图1b),先向左前走行一段后,向右向后迂曲延伸,于左室下后壁破人左室内二尖瓣环下方(图1c),瘘口大小约7.6 mm n,彩色多普勒于左室舒张期探及彩色镶嵌的分流信号,峰速约4 m/s。
