[Objectives]To determine the content of salvianolic acid B in Yiqi Huayu Prescription by HPLC.[Methods]The chromatographic column was ZORBAX Eclipse Plus C 18(4.6 nm×250 nm,5μm);the mobile phase was acetonitrile...[Objectives]To determine the content of salvianolic acid B in Yiqi Huayu Prescription by HPLC.[Methods]The chromatographic column was ZORBAX Eclipse Plus C 18(4.6 nm×250 nm,5μm);the mobile phase was acetonitrile-0.1%phosphoric acid(21:79),the detection wavelength was 286 nm,the column temperature was 30℃,and the flow rate was 1.0 mL/min.A method for determination of salvianolic acid B in Yiqi Huayu Prescription was established.[Results]The linear relationship of salvianolic acid B was good in the range of 0.0214-0.4064 mg/mL.The regression equation was Y=5995.98984 X-0.07332,r=0.9999.The average recovery rate was 98.88%(RSD=1.6%).[Conclusions]The method is reliable,accurate and specific,and can be used for the determination of salvianolic acid B in Yiqi Huayu Prescription.展开更多
[Objectives]To establish a method for determining the content of caffeic acid in Zhuang Medicine Cryptolepis buchananii.[Methods]The content of caffeic acid in C.buchananii leaves was determined by high performance li...[Objectives]To establish a method for determining the content of caffeic acid in Zhuang Medicine Cryptolepis buchananii.[Methods]The content of caffeic acid in C.buchananii leaves was determined by high performance liquid chromatography(HPLC).[Results]The results of HPLC determination showed that the RSD values were less than 3%,and the content of caffeic acid in 10 batches of C.buchananii leaves was in the range of 0.0965%-0.4772%.[Conclusions]This method is accurate and reliable,has good linear relationship and high precision,and can be used for quality evaluation of C.buchananii.展开更多
[Objectives]To establish a method to simultaneously determine the content of paederosidic acid in Paederia scandens dried by four different methods.[Methods]Reversed-phase high performance liquid chromatography(RP-HPL...[Objectives]To establish a method to simultaneously determine the content of paederosidic acid in Paederia scandens dried by four different methods.[Methods]Reversed-phase high performance liquid chromatography(RP-HPLC)was adopted.The chromatographic column:Thermo SCIENTIFIC Hypersil GOLD Dim.(mm);mobile phase:acetonitrile-0.1%phosphoric acid aqueous solution;gradient elution;column temperature:30℃;flow rate:1 mL/min;detection wavelength:236 nm;injection volume:10μL.[Results]The linear range of the detection injection volume of paederosidic acid was 0.64-9.60μg(R=0.9992);the limit of quantity(LOQ)was 5.10 ng,and the limit of detection(LOD)was 1.36 ng;the RSD of the precision,stability and reproducibility test was all less than 3%;the sample recovery rate was 98.87%,RSD<3.00,n=6.The results show that the content of paederosidic acid in the shade-dried P.scandens is the highest,and the order of the content is P.scandens(dry in shade)>P.scandens(dried at 50℃)>P.scandens(dried at 60℃)>P.scandens(dried at 70℃).[Conclusions]This method is sensitive,reliable and reproducible,and can be used to simultaneously determine the content of paederosidic acid in P.scandens dried by four different methods.展开更多
The rape project of "Development and Application of Cabbage Type Rape Hybrids with Strong Heterosis" which belongs to National 863 Program aimed to breed the rape variety whose rapeseed yield or oil yield increased ...The rape project of "Development and Application of Cabbage Type Rape Hybrids with Strong Heterosis" which belongs to National 863 Program aimed to breed the rape variety whose rapeseed yield or oil yield increased more than 10% compared with check (CK) variety, or oil yield increased more than 3 percentage points compared with CK. In the regional trial in the middle react,es of the Yangtze River for two years, the average rapeseed yield and oil yield of Youyan 924 which is a hybrid rape variety respectively reached 2 695.95 and 1 264.35 kg/hm2, which respectively increased by 5.22% and 13.4% compared with those of the other test- ing varieties in the same group, and respectively increased by 10.06% and 23.68% compared with those of Zhongyouza 2 which belongs to CK, thus reaching the standard of hybrid rape variety with strong heterosis; the average oil percentage of the variety in the two years was 46.63%,which increased by 3.44 percentage points compared with that of all the other testing varieties in the same group, and in- creased by 5.14 percentage points compared with that of Zhongyouza 2, and the oil percentage of it in the production testing reached 49.21%. Thus Youyan 924 is a variety with strong heterosis and high oil, moreover, its contents of erucic acid and glucosinolate are 0,25% and 20.27 μmol/g, respectively. From the data aggregation of national regional trial, it has the advantages of high oil yield, high yielding ability, reaching the standards of low erucic acid and low glucosinolate, strong lodging re- sistance, good disease resistance aqd moderate mature period.展开更多
基金Supported by Zhongshan Medical Research Project(2021A020487).
文摘[Objectives]To determine the content of salvianolic acid B in Yiqi Huayu Prescription by HPLC.[Methods]The chromatographic column was ZORBAX Eclipse Plus C 18(4.6 nm×250 nm,5μm);the mobile phase was acetonitrile-0.1%phosphoric acid(21:79),the detection wavelength was 286 nm,the column temperature was 30℃,and the flow rate was 1.0 mL/min.A method for determination of salvianolic acid B in Yiqi Huayu Prescription was established.[Results]The linear relationship of salvianolic acid B was good in the range of 0.0214-0.4064 mg/mL.The regression equation was Y=5995.98984 X-0.07332,r=0.9999.The average recovery rate was 98.88%(RSD=1.6%).[Conclusions]The method is reliable,accurate and specific,and can be used for the determination of salvianolic acid B in Yiqi Huayu Prescription.
基金Supported by Project for Improving Basic Research Ability of Middle Aged and Young Teachers in Colleges and Universities of Guangxi(2019KY0324)Graduate Project of Guangxi University of Chinese Medicine(YCSY20190096)+2 种基金Program of Collaborative Innovation Center of Zhuang and Yao Medicine(zyx[2015]-01)Sub-project of Guangxi Key Laboratory of Traditional Chinese Medicine Pharmacology(J16072)Student’s Platform for Innovation and Entrepreneurship Training Program of Guangxi University of Chinese Medicine in Guangxi Zhuang Autonomous Region(201910600022).
文摘[Objectives]To establish a method for determining the content of caffeic acid in Zhuang Medicine Cryptolepis buchananii.[Methods]The content of caffeic acid in C.buchananii leaves was determined by high performance liquid chromatography(HPLC).[Results]The results of HPLC determination showed that the RSD values were less than 3%,and the content of caffeic acid in 10 batches of C.buchananii leaves was in the range of 0.0965%-0.4772%.[Conclusions]This method is accurate and reliable,has good linear relationship and high precision,and can be used for quality evaluation of C.buchananii.
基金The First Batch High-level Talent Scientific Research Project of The Affiliated Hospital of Youjiang Medical University for Nationalities in 2019(Y20196311)Project for Improving Basic Research Ability of Young and Middle-aged and Young Teachers in Colleges and Universities of Guangxi in 2020(2020KY13034)Program of Youjiang Medical University for Nationalities(yy2018ky018).
文摘[Objectives]To establish a method to simultaneously determine the content of paederosidic acid in Paederia scandens dried by four different methods.[Methods]Reversed-phase high performance liquid chromatography(RP-HPLC)was adopted.The chromatographic column:Thermo SCIENTIFIC Hypersil GOLD Dim.(mm);mobile phase:acetonitrile-0.1%phosphoric acid aqueous solution;gradient elution;column temperature:30℃;flow rate:1 mL/min;detection wavelength:236 nm;injection volume:10μL.[Results]The linear range of the detection injection volume of paederosidic acid was 0.64-9.60μg(R=0.9992);the limit of quantity(LOQ)was 5.10 ng,and the limit of detection(LOD)was 1.36 ng;the RSD of the precision,stability and reproducibility test was all less than 3%;the sample recovery rate was 98.87%,RSD<3.00,n=6.The results show that the content of paederosidic acid in the shade-dried P.scandens is the highest,and the order of the content is P.scandens(dry in shade)>P.scandens(dried at 50℃)>P.scandens(dried at 60℃)>P.scandens(dried at 70℃).[Conclusions]This method is sensitive,reliable and reproducible,and can be used to simultaneously determine the content of paederosidic acid in P.scandens dried by four different methods.
基金Supported by the Planned Project of National High and New Technology Research(863)-"Development and Application of Rape Hybrids with Strong Heterosis"(No:2011AA10A104)~~
文摘The rape project of "Development and Application of Cabbage Type Rape Hybrids with Strong Heterosis" which belongs to National 863 Program aimed to breed the rape variety whose rapeseed yield or oil yield increased more than 10% compared with check (CK) variety, or oil yield increased more than 3 percentage points compared with CK. In the regional trial in the middle react,es of the Yangtze River for two years, the average rapeseed yield and oil yield of Youyan 924 which is a hybrid rape variety respectively reached 2 695.95 and 1 264.35 kg/hm2, which respectively increased by 5.22% and 13.4% compared with those of the other test- ing varieties in the same group, and respectively increased by 10.06% and 23.68% compared with those of Zhongyouza 2 which belongs to CK, thus reaching the standard of hybrid rape variety with strong heterosis; the average oil percentage of the variety in the two years was 46.63%,which increased by 3.44 percentage points compared with that of all the other testing varieties in the same group, and in- creased by 5.14 percentage points compared with that of Zhongyouza 2, and the oil percentage of it in the production testing reached 49.21%. Thus Youyan 924 is a variety with strong heterosis and high oil, moreover, its contents of erucic acid and glucosinolate are 0,25% and 20.27 μmol/g, respectively. From the data aggregation of national regional trial, it has the advantages of high oil yield, high yielding ability, reaching the standards of low erucic acid and low glucosinolate, strong lodging re- sistance, good disease resistance aqd moderate mature period.