1.Discussion on evaluation mode of proficiency testing for heavy metal and harmful element detection in medicines.
Yao-Lei LI ; Hong-Yu JIN ; Xin-Hua XIANG ; Shuang-Cheng MA
China Journal of Chinese Materia Medica 2019;44(8):1724-1728
This study aims to explore the evaluation model for the proficiency testing of heavy metal and harmful element residues in pharmaceuticals,and to provide reference for the proficiency testing program and proficiency testing result in the field of residue analysis. The proficiency test result of cadmium determination in honeysuckle as an example. The algorithm A,NIQR,and Horwitz function are used to calculate the assigned value and the standard deviation. Z was obtained at the same time. If | Z | ≤2,the result is satisfactory. If 2< | Z | <3,the result is questionable. If | Z | ≥3,the result is unsatisfactory. In addition,the median value is the assigned value,and deviation(D%) is used. If D% is not more than 16%,the result is satisfactory; if D% is more than 16%,the result is unsatisfactory. After analysis,in the results of questionable or dissatisfied laboratories calculated by algorithm A and NIQR,the deviation error of some data is within the scope of the standard. In the results of the satisfactory laboratory evaluated by the Horwitz function,some data deviation errors far exceed the standard range. The evaluation result of the D% meets the requirements. According to heavy metal and harmful element trace analysis methods,this study is the first to apply D% to the evaluation of the detection ability of heavy metals and harmful elements in pharmaceuticals. This method makes the evaluation result more reasonable,and has important reference significance for the evaluation of other proficiency test results.
Cadmium
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analysis
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Laboratories
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Laboratory Proficiency Testing
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Lonicera
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chemistry
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Pharmaceutical Preparations
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standards
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Plant Preparations
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standards
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Trace Elements
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analysis
2.Mandatory regulations and standards regarding cosmetic botanic ingredients in major countries and regions.
Nai-Tao SHEN ; Huan YUAN ; Qing-Bin LIN ; Lin TANG
China Journal of Chinese Materia Medica 2019;44(24):5488-5495
Cosmetics containing botanic ingredients have been used from thousands of years up to now in China. Because of the consumers' demand for health and beauty,the number of products about " botanic" have been growing rapidly in the cosmetics market,which has played an important role in upgrading the industry and enhancing the international competitiveness nowadays. Therefore,to strengthen the management about used botanic raw materials in cosmetics products and revise the application regulation of new raw materials has become an important work to ensure product quality,promote the healthy and stable development of cosmetic business. The article summarizes the related mandatory regulations and standards about botanic ingredients which used as activity function in major cosmetic business countries or regions. Furthermore,the information of botanic ingredients commonly used in non-special cosmetics notification and special cosmetic registration system were described to expect the better application and development.
China
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Consumer Product Safety
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Cosmetics/standards*
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Government Regulation
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Plant Preparations/standards*
3.Construction and application of modern research paradigm of new foreign introducing traditional Chinese medicine.
Lin-Yuan WANG ; Chun WANG ; Dan-Ping ZHAO ; Yan HOU ; Mu-Han ZHANG ; Jian-Jun ZHANG
China Journal of Chinese Materia Medica 2020;45(5):967-977
With the development of society, more and more foreign natural medicines have entered China, but they are faced with the problem that they are not given with the traditional Chinese medicine(TCM) properties when they are used with other TCM. When we carried out the research on introducing foreign natural plant resources to TCM, gradually, a new research model and field with original characteristics of TCM--the study of new foreign introducing TCM had been formed. In the process of it, we explored and summarized research rules to form the research paradigm, which will be conducive to the standardization and scientization of new foreign introducing TCM research. For the research of foreign introducing TCM, we analyzed the research background, reviewed the application history, sorted out the research status, elaborated the concept and summarized the research achievements. On this basis, we put forward the concept and system of the modern research paradigm of new foreign introducing TCM, studied and clarified the core elements, properties and research principles of this paradigm, and summarized the research contents and methods of new foreign introducing TCM. We interpreted the foundation of paradigm construction from multiple perspectives. The paradigm was the practical application of theoretical innovation of TCM. Under the guidance of it, more and more varieties of new foreign introducing TCM will be studied, the study will be more standardized, the conclusions will be more scientific and reliable, which will inspire and guide more researchers to focus on the research of new foreign introducing TCM, and the paradigm itself will be constantly improved. The construction and application of the paradigm will certainly accelerate the innovative research of foreign introducing TCM and play a historic role in promoting the enrichment of traditional Chinese medicine varieties.
China
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Drugs, Chinese Herbal
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Internationality
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Medicine, Chinese Traditional
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Plant Preparations/standards*
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Research Design
4.DNA barcoding identification of Dendrobium huoshanense and its adulterants.
Hui WANG ; Ling-Ling SHI ; Jue ZHOU ; Guo-Ping ZHU
China Journal of Chinese Materia Medica 2018;43(20):4055-4061
This research preliminarily discusses the relations of Dendrobium system growth through chloroplast gene rbcL, matK and the nuclear genome ITS2. The DNA barcoding universal sequence for authentication of the Dendrobium medical plants was slected and the possibility concerning utilizing the DNA barcoding to distinguish the D. huoshanenseand its adulterants was analyzed. Using the universal primer pair of ITS2, rbcL and matK, series of extended sequencing in the Dendrobium were conducted. Meanwhile, considering the different index about amplification and sequencing success rate of each sequence, the intraspecific and interspecific aberrance, the employment of BioEdit and MEGA 5.0 software were applied to establish the systematic tree of the NJ molecular and evaluate the diversified authentication capability of various sequences. The consequence demonstrates that the sequence of ITS2 is not only the largest one both in the intraspecific and interspecific aberrance of the Dendrobium but also has obvious barcoding gap. Considering the few overlap between the intraspecific and interspecific aberrance and the highest percentage regarding the formation of unilateral branch in diverse Dendrobium which have different ITS2 sequences, it can differentiate the species of Dendrobium. Furthermore, due to the inferior success rate of the rbcL and thematK and the lower reliability of NJ systematic tree, the percentage of the unilateral species which are generated by the systematic tree of rbcL and matK sequences is deficient. Therefore, the sequence of ITS2 can serves as DNA barcoding to distinguish the D. huoshanense, the D. moniliform and the D. officinale.
DNA Barcoding, Taxonomic
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DNA, Plant
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genetics
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Dendrobium
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classification
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Drug Contamination
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Plant Preparations
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standards
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Plants, Medicinal
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classification
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Reproducibility of Results
5.Quantititive study for chromatographic fingerprints of processed products of Paeonia lactiflora.
Yan HE ; Hui-dong ZHAO ; Li-ying TANG ; Zhu-ju WANG ; Qi-wei ZHANG
China Journal of Chinese Materia Medica 2007;32(12):1161-1164
OBJECTIVETo explore the utility of Principal Factor Analysis (PFA) in chromatographic data for quality control.
METHODChromatographic fingerprints of processed root pieces of Paeonia lactiflora were determined by HPLC, the PFA was used for data processing.
RESULTThe quantitative differences among different growing areas and different processing batches were found with the method.
CONCLUSIONThe method could be used in quality control for monitoring between-batch products of traditional Chinese pharmaceutical process.
Chromatography, High Pressure Liquid ; methods ; Ecosystem ; Factor Analysis, Statistical ; Hot Temperature ; Pinellia ; chemistry ; Plant Preparations ; analysis ; chemistry ; standards ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Quality Control ; Reproducibility of Results ; Technology, Pharmaceutical ; methods ; Wine
6.Comparative study on inner quality of various Chrysanthemum morifolium cultivated in Tongxiang city.
Tao WANG ; Qiao-Sheng GUO ; Xue-Gen SHEN ; Ying-Nuan LIANG ; Tao-Ying WANG ; Jian-Song ZHOU
China Journal of Chinese Materia Medica 2007;32(9):783-849
OBJECTIVETo study the quality and the chemical components of Chrysanthemum morifolium from Tongxiang city.
METHODChemical constituents of nine cultivars were compared in three types of index: chlorogenic acid, flavonoid and volatile oil.
RESULT AND CONCLUSIONThe content varied significantly. The content of chlorogenic acid in Jinjuerhao was 6.66%, the highest among the samples. Yizhongdabaiju showed the highest flavonoid and volatile oil with 9.49% and 3.30 mL x kg(-1) respectively.
China ; Chlorogenic Acid ; analysis ; Chrysanthemum ; chemistry ; classification ; growth & development ; Ecosystem ; Flavonoids ; analysis ; Flowers ; chemistry ; Oils, Volatile ; analysis ; Plant Preparations ; analysis ; chemistry ; standards ; Plants, Medicinal ; chemistry ; classification ; growth & development ; Quality Control ; Species Specificity