Liu F.,Xinjiang Normal University |
Tian S.,Xinjiang Key Laboratory of Famous Prescription and Science of Formulas |
Tian S.,Xinjiang Medical University
Research Journal of Chemistry and Environment | Year: 2013
An ultrasound-assisted extraction (UAE) and highperformance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method that offers good linearity, accuracy and precision was developed for the simultaneous determination of rosmarinic acid (RA) in Cordia dichotoma seeds. Single-factor and orthogonal experiments were performed to determine the appropriate range of extraction conditions and to obtain the optimum extraction conditions respectively. The optimum UAE conditions for C. dichotoma seeds were as follows: ethanol concentration of 70%, solid/liquid ratio of 1:35 g/mL, ultrasound time of 30 min and ultrasound power of 300 W. UAE is an alternative technique for the fast extraction of C. dichotoma seeds. The factors selected in this study had significant functions on the extraction of RA from C. dichotoma seeds.
Gong H.Y.,Xinjiang Key Laboratory of Famous Prescription and Science of Formulas |
Gong H.Y.,Xinjiang Medical University |
Ma X.M.,Xinjiang Medical University |
Tian S.G.,Xinjiang Key Laboratory of Famous Prescription and Science of Formulas
E-Journal of Chemistry | Year: 2012
Paeonia sinjiangensis K. Y. Pan is a perennial herb belonging to the family Ranunculaceae which is one of the most important crude drugs in traditional Chinese medicine, used as an anti-inflammatory, analgesic and sedative agent. This paper deals with the detailed pharmacognostical evaluation of the crude drug P. sinjiangensis K. Y. Pan. The microscopic, physico-chemical, preliminary physicochemical parameters, total phenols contents presented in this paper may be proposed as parameters to establish the authenticity of P. sinjiangensis K. Y. Pan and can possibly help to differentiate the drug from its other species.
Liu F.,Xinjiang Normal University |
Liu W.,Xinjiang Medical University |
Ding W.,Xinjiang Key Laboratory of Famous Prescription and Science of Formulas |
Lv G.,Xinjiang Key Laboratory of Famous Prescription and Science of Formulas |
Zhou X.,Xinjiang Medical University
Asian Journal of Chemistry | Year: 2014
The concentration of twelve trace elements (Ca, Cd, Cr, Cu, Fe, Hg, K, Mg, Mn, Na, Pb, Zn) in eight Medicago sativa L. seeds samples, which were uygur medicine and carried out by inductively coupled plasma optical emission spectrometry (ICP-OES). A diluted oxidant mixture (2 mL HNO3 + 1 mL H2O2 + 3 mL H2O) was used to achieve the complete decomposition of the organic matrix in a closed-vessel microwave oven. The accuracy of the entire proposed method was confirmed by standard reference material analysis. Twelve trace elements contents were found detected at in different Medicago sativa L. seeds samples. The results in the samples (minimum-maximum in ìg/g) were : Ca 0.022-0.058, Cr 0.126-7.106, Cu 0.570-4.504, Fe 8.004-12.588, Mn 0.035-0.054, Ni 0.908-2.182, Pb 0.099-0.134 and Zn 2.206-8.982, respectively. The trace elements analysis method of the ICP-OES was found to be fast, reliable, simple and excellent in determination of the trace elements.
Gong H.,Xinjiang Medical University |
Gong H.,Xinjiang Key Laboratory of Famous Prescription and Science of Formulas |
Zhou X.,Xinjiang Medical University |
Zhu M.,Xinjiang Medical University |
And 3 more authors.
Journal of Essential Oil-Bearing Plants | Year: 2012
This article deal with the detailed pharmacognostic evaluation of the crude drug A. rugosa. The essential oils isolated from dried flower and leaf of A. rugosa from Xinjiang, in China, were extracted by the method of hydrodistillation and the chemical compositions of these oils have been investigated by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The yields of essential oils from the dried flower and leaf based on the dry weight of the plant were 0.29% and 0.57% (w/w), respectively. The flower oil was revealed the presence of 21 components, representing 99.78% of the total oil. The major compounds of the flower oil were oxygenated terpenes (35.4%), estragole (29.5%), p-Menthan-3-one (19.2 %), and monoterpenes (8.8%). Twenty-six components accounting for 99.62% of constituents of leaf oil were identified, and the main compounds of the oil were p-Menthan-3-one (48.8%), estragole (20.8%), monoterpenes (8.3%), and oxygenated terpenes (5.6%). Oxygenated terpenes were the main group of the compounds in the flower oil and p-Menthan-3-one was the main group of the compounds in the leaf oil. © 2012, Har Krishan Bhalla & Sons.
Tian S.G.,Xinjiang Key Laboratory of Famous Prescription and Science of Formulas |
Tian S.G.,Xinjiang Medical University |
Xin L.D.,Xinjiang Key Laboratory of Famous Prescription and Science of Formulas |
Xin L.D.,Xinjiang Medical University |
Upur H.,Xinjiang Key Laboratory of Famous Prescription and Science of Formulas
Journal of Chemistry | Year: 2013
A high-performance thin-layer chromatographic (HPTLC) method has been established for simultaneous analysis of rosmarinic acid and rutin in Abnormal Savda Munziq (ASMq). A methanol extract of ASMq was used for quantification. The compounds were separated on silica gel H thin layer plate with ethyl acetate-formic acid-acetic acid-water 15: 1: 1: 1.5 (v/v) as a developer, trichloroethanol as the color reagent. The plates were scanned at 365 nm. The linear calibration data of rosmarinic acid and rutin were in the range of 0.0508 to 0.2540 μg (r = 0.9964), 0.2707 to 1.35354 μg (r = 0.9981), respectively. The recovery rate of rosmarinic acid was 99.17 (RSD = 2.92) and rutin was 95.24 (RSD = 2.38). The method enables rapid screening, precise, selective, and sensitive quantification for pharmaceutical analysis. © 2013 S. G. Tian et al.