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Objective To analyze and identify the chemical constituents of essential oil from the fruits of Cinnamomum camphora chvar. Borneol. Methods The essential oil from the fruits was extracted by steam distillation and its chemical constituents were analyzed and identified by GC-MS. Results Fifty compounds were separated, and 42 kinds of which accounting for 99.536% were identified. D-borneol was the most abundant compound, of which the amount was 50.684%of the total constituents. Conciusion This present study demonstrated higher content of natural D-borneol, providing scientific basis for further exploration and utilization of the fruits of Cinnamomum camphora chvar. Borneol.
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Objective To establish the quality standard of Tiaojing Zhixue Granules.Methods Radix Astragali,Radix Paeononiae Alba,Herba Ecliptae and Fructus Psoraleae in Tiaojing Zhixue Granules were identified by TLC;Paeoniflorin content in Tiaojing Zhixue Granules was determined by HPLC.Results The relevant spots in Radix Astragali,Radix Paenoniae Alba,Herba Ecliptae and Fructus Psoraleae can be identified by TLC.The content of paeoniflorin in Radix Paenoniae Alba can be determined by HPLC.The linearity of paeoniflorin was good in the range of 0.0968 ~ 0.4838 ?g(r = 0.9999).The average recovery of paeoniflorin was 99.71 % with RSD = 1.33 %.Conclusion The established quality standard is simple,feasible and repeatable,and can be used for quality supervisory of Tiaojing Zhixue Granules.
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Objective To establish the fingerprint of Yuanshi Shengmai Chenggu (YSC)Tablets by HPLC.Methods Chromatographic conditions of HPLC were as follows: Hypersil ODS2 column with temperature at 20 ℃; methanol and 1 %acetic acid glacial(gradient elution)as a mobile phase; detection wavelength at 268 nm;analytical time being 55 min and flowing rate being 1.0 mL/min.Results Twenty-five peaks were indicated on the HPLC-fingerprint of YSC Tablets. The peak area of vitexin was the biggest area in different batches of YSC Tablets, the area being 22 %～25 %. The differences of fingerprint in different batches of YSC Tablets were not obvious, which indicated the fingerprint characteristics of YSC Tablets.Conclusion The method is simple and accurate and with a good reproducibility and can be used for the quality control of YSC Tablets.
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Objective To establish a quality standard for Kangtai Capsule. Methods Kangtai Capsule was identified by TLC; the effective components in Kangtai Capsule were determined by HPLC. Results The relevant spots in Radix Paeoniae Alba, Radix Saposhnikoviae and Radix Aucklandlae were identified by TLC. the content of Paeoniflorin showed a good linearity in the range of 0.204～ 2.040 ? g, the average recovery rate was 97.9 % and RSD was 0.88 % . Conclusion This method is simple, feasible and repeatable, and can be used for quality control of Kangtai Capsule.
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Objective To develop a RP-HPLC method for the determination of piperine in the root of Piper nigrum L.Methods RP-HPLC was carried out on Luna C18 column(250 mm? 4.60 mm,5 ? m) with the column temperature of 35 ℃.The mobile phase consisted of a mixture of methanol-water(77 :23) at a flow rate of 1.0 mL? min-1.The determination wavelength was at 343 nm.Results The calibration curve was linear within the concentration range of 0.164 ? g～ 0.984 ? g,r=0.9996,and the average recovery was 98.09 %,RSD=2.67 %(n=9).The average content of piperine in three batches of pepper roots was in the range of 6.67～6.77mg?g-1.Conclusion Pepper root contains piperine,and this method is suitable for the quality control of the root of Piper nigrum L.
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On the basis of thermal stability of andrographolide and dehydroandrographolide,the influences of medicinal material factors(habitats,collecting time,storage time),thermal stability,production technology(solvent,temperature,heating time and storage condition)on the content of andrographolide and dehydroandrographolide in Andrographis Tablet(AT)were explored so as to increase the quality of AT.The results showed that the excellent medicinal material of Herba Andrographis,optimized production technology,shorter heating time and lower temperature are the effective measures for increasing the quality of AT.
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Objective To establish a quality standard for Huangqin Zhengqi Capsules (HZC). Methods HZC was identified by TLC and HPLC and the effective components of HZC were determined by HPLC. Results The relevant spots in Cortex Magnoliae Officinalis and Herba Pogostemonis were identified by TLC, and the characteristic compounds of Rhizoma Atractylodis were identified by HPLC; the contents of hesperidin, baicalin, honokiol and magnolol could be determined by HPLC. Conclusion The quality standard is simple, feasible and repeatable, and can be used for quality supervisory and control in Huangqin Zhengqi Capsule.
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AIM: To establish a method of determining the content of volatility contents in Baicao Oil. METHODS: The content of menthol, cinnamaldehyde, and eugenol were determined by gas chromatography. RESULTS: Menthol, cinnamaldehyde, and eugenol were well separated and the linearity was fine with the recovery in the range of 98%-102%. CONCLUSION: The method is rapid, stable and accurate. It can be used to control the quality of this preparation.