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Application of Tencel on Raschel Blanket

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Journal of Donghua University(English Edition) 2011年第6期28卷 629-631页

作者：张瑞寅魏孟媛薛建昌薛文良 Key Laboratory of Textile Science & Technology Ministry of EducationDonghua University Shanghai entry-exit inspection and quarantine bureau Shijiazhuang Changshan Hengxin Textile Co. Ltd.

For excellent properties,Tencel is more and more popular in textile *** kinds of raschel knitted blanket test samples were woven with the base-weave polyester yarns and velvet yarns,respectively including pure Tencel,Tencel/polyacrylonitrile,pure polyester,and pure *** style of samples was evaluated with the ranking evaluation method,and its warmth retention,compressibility,antistatic properties and so on were *** comprehensive was applied to the evaluation of *** result shows that Tencel fiber can improve the appearance style of raschel blanket,and alter the thermal-wet comfort properties and antistatic *** the blanket fabric contained Tencel is durable and not dilapidated *** the raschel blanket used pure Tencel velvet yarn has poor *** with traditional raschel blanket,the blanket blended with Tencel/polyacrylonitrile improves a certain degree on comprehensive *** Tencel has certain value in acrylic knitted blanket.

关键词： raschel blanket Tencel ranking evaluation fuzzy comprehensive

Simultaneous Determination of Ultraviolet Absorbers and Antibacterial Agents in Textiles by Ultra-High Performance Liquid Chromatography/Orbitrap High Resolution Mass Spectrometry

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World Journal of Engineering and Technology 2017年第1期5卷 1-18页

作者： Chengyun Wang Tangtang Xie Rong Xu Junfeng Lin Lixia Li Shenzhen entry-exit inspection and quarantine bureau Shenzhen China

This paper reported a new analytical method for the simultaneous determination of seven benzotriazole ultraviolet absorbers and seven antibacterial agents in textiles. After ultrasonic extraction for the textile samples in methanol, the solutions were analyzed by ultra-high performance liquid chromotagraphy/orbitrap high resolution mass spectrometry (UPLC/Orbitrap HRMS). It showed that a good chromatographic separation for these target compounds was achieved by a Hypersil GOLD column (100 mm × 2.1 mm × 1.9 μm) with a gradient elution of methanol and 0.1% aqueous formic acid solution (containing 0.5 mmol/L ammonium acetate). Triclosan and 4-chloro-3,5-dimethyl phenol (PCMX) were detected by the orbitrap HRMS in an electrospray ionization (ESI) negative mode while the other twelve target compounds were detected by orbitrap HRMS in ESI positive mode. Full scan experiment was performed over the range from m/z 100 to m/z 500. These target compounds were routinely detected with mass accuracy below 2 × 10-6 (2 ppm) at the optimized conditions. The results showed that the limits of detection (LODs) were in the range from 0.1 to 0.3 μg/kg. The blank samples were spiked at three levels and their average recoveries varied from 80.5% to 96.3% while the relative standard deviation (RSD) changed from 3.2% to 9.9%. The present method was also applied for the determination of those ultraviolet absorbers and antibacterial agents in the commercial textiles.

关键词： Ultra-High Performance Liquid Chromatography/Orbitrap High Resolution Mass Spectrometry Benzotriazoleultraviolet Absorbers Isothiazolinone Tric-losan 4-Chloro-3 5-Dimethyl Phenol

Establishment of Pyrosequencing Technology for Detecting Viral Hemorrhagic Septicemia Virus (VHSV)

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Animal Husbandry and Feed Science 2017年第6期9卷 407-410页

作者： Yin Weili Liu Yao Huang Wei Zhang Sihua Yue Zhiqin Sun Tao Yantai entry-exit inspection and quarantine bureau Rongcheng entry-exit inspection and quarantine bureau Wuhan Agricultural Testing Center Wuhan Animal Disease Control and Prevention Center Technical Center of Shandong entry-exit inspection and quarantine bureau

[Objective] The paper was to establish pyrosequencing methods for detecting viral hemorrhagic septicemia virus （VHSV）. [ Method ] One pair of PCR primers and one pyrosequencing primer of VHSV were designed. The pyrosequencing reaction system and conditions were optimized and the pyrosequencing method for detecting VHSV was established. [ Result] This method was only able to specifically detect the objective viruses in the eight fish viruses, and the method had the advantage of high sensitivity. The minimum detectable limit of nucleic acid was 82 copies/μL. The method was verified by detecting VHSV in 1 924 batches of samples collected from domestic and imported fishes. The detection results were consistent with that of traditional RT-PCR, and the specificity and sensitivity of the method could meet the detection requirement for aquatic animal diseases. [ Conclusion] The study provides a new detection method for monitoring and prevention and control of aquatic animal virus diseases.

关键词： Viral hemorrhagic septicemia virus (VHSV) Pyrosequencing Detection

Determination of Sym-triazine Residues in Animal-derived Food by Liquid Chromatography-High Resolution Mass Spectrometry

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Animal Husbandry and Feed Science 2016年第3期8卷 146-150页

作者： Gong Xiaoming Yang Lijun Wang Hongtao Ma Ronggui Ding Kuiying Guo Liqiang Sun Jun Weifang entry-exit inspection and quarantine bureau Weifang 261041China Weihai entry-exit inspection and quarantine bureau Weihai 264200China

[Objective]The research aimed to establish a liquid chromatography-high-resolution mass spectrometry for detecting residues of diclazuril,toltrazuril and its metabolites in animal-derived food.[Method]The samples were pre-treated by QuEChERS technology and detected by Exactive liquid chromatography-high resolution mass *** liquid chromatography-high-resolution mass spectrometry for detecting the residues of diclazuril,toltrazuril,toltrazuril sulfone and toltrazuril sulfoxide in animal-derived food was established.[Result]Diclazuril,toltrazuril,toltrazuril sulfone and toltrazuril sulfoxide showed a good linear correlation in the range of 2.0-50.0μg/L（r^2〉0.99）.The average recoveries of these four compounds in bovine power at the spiked levels of 2,10 and 20μg/kg were 74.5%-90.1%,and the relative standard deviations（RSD）were 15.4%-17.5%.[Conclusion]This method was stable and reliable,and could be used to detect diclazuril,toltrazuril,toltrazuril sulfone and toltrazuril sulfoxide in animal-derived food.

关键词： Animal-derived food Sym-triazine drugs QuEChERS Liquid chromatography-high-resolution mass spectrometry

Construction of Saccharomyces cerevisiae Strain Stably Expressing a Fusion Protein Containing Ten Tandem Recombinant Human Glucagon-like Peptide-1 Analogues

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Chemical Research in Chinese Universities 2009年第6期25卷 882-886页

作者： WU Zhi-qiang JIA Nai-bing LI Na MA Bai-cheng LI Ming-gang Institute for Molecular Biology College of Life Science Nankai University Tianjin 300071 P. R. China Tianjin entry-exit inspection and quarantine bureau Tianjin 300201 R R. China

The recombinant Saccharomyces cerevisiae strain stably expressing recombinant human glucagon-like peptide-l（rhGLP-1） analogue, as a potential oral drug delivery system for diabetes type II treatment, was successfully constructed by the homologous recombination between chromosomal DNA and yeast and integrating vector pNK-GLP containing yeast ribosomal DNA fragments. The amount of rhGLP-I analogue fusion protein in transformant SG2 reached ca. 0.84 mg per gram of packed cells when SG2 was grown for 24 h in the YPD medium with a inoculum and medium ratio of 1：1. Oral administration of 5 g lyophilized SG2/kg to hyperglycemic rats decreased serum glucose from （24.8±1.40） to （21.2±1.36） mmol/L.

关键词： Saccharomyces cerevisiae Yeast integrating vector Ribosomal DNA Recombinant human glucagon-likepeptide- 1 Hyperglycemic rat

Metabolomics coupled with similarity analysis advances the elucidation of the cold/hot properties of traditional Chinese medicines

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Chinese Journal of Natural Medicines 2017年第8期15卷 631-640页

作者： JIA Yan ZHANG Zheng-Zheng WEI Yu-Hai Qin Xue-Mei LI Zhen-Yu Modern Research Center for Traditional Chinese Medicine of Shanxi University Taiyuan 030006China College of Chemistry and Chemical Engineering of Shanxi University Taiyuan 030006China Qinghai entry-exit inspection and quarantine bureau Xining 810000China

It recently becomes an important and urgent mission for modern scientific research to identify and explain the theory of traditional Chinese medicine(TCM), which has been utilized in China for more than four millennia. Since few works have been contributed to understanding the TCM theory, the mechanism of actions of drugs with cold/hot properties remains unclear. In the present study, six kinds of typical herbs with cold or hot properties were orally administered into mice, and serum and liver samples were analyzed using an untargeted nuclear magnetic resonance(NMR) based metabolomics approach coupled with similarity analysis. This approach was performed to identify and quantify changes in metabolic pathways to elucidate drug actions on the treated mice. Our results showed that those drugs with same property exerted similar effects on the metabolic alterations in mouse serum and liver samples, while drugs with different property showed different effects. The effects of herbal medicines with cold/hot properties were exerted by regulating the pathways linked to glycometabolism, lipid metabolism, amino acids metabolism and other metabolic pathways. The results elucidated the differences and similarities of drugs with cold/hot properties, providing useful information on the explanation of medicinal properties of these TCMs.

关键词： Cold/hot property Metabolomics Traditional Chinese medicine NMR Similarity analysis

Diarylheptanoids from the root bark of Juglans cathayensis

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Chinese Chemical Letters 2013年第6期24卷 521-523页

作者： Juan Li Jia-Xiang Sun Heng-Yi Yu Zu-Yu Chen Xiao-Ya Zhao Han-Li Ruan Department of Pharmacy Tongji Hospital Affiliated Tongji Medical CollegeHuazhong University of Science and Technology School of Pharmacy Tongji Medical College of Huazhong University of Science and Technology Hubei entry-exit inspection and quarantine bureau

A new diarylheptanoid glucoside,（8R,9R）-17-methoxy-2-oxatricyclo[13.***.2.1^（3.7）]icosa-l（17）,3（20）,4,6, 15,18-hexaene-4,9,10-triol-9-O-β-D-glucopyranoside（1）,namely jugcathayenoside,together with two known diarylheptanoids,（＋）-galeon（2） and 4-hydroxy-17-methoxy-2-oxatricyclo[13.***.2.1^（3,7） ]icosa-1（17）,3（20）,4,6,15,18-hexaene-9-one（3）,were isolated from the root bark of Juglans cathayensis. Their structures were elucidated on the basis of extensive spectroscopic data analysis.

关键词： Juglans cathayensis Diarylheptanoid glucoside Jugcathayenoside

Preparation of high selective molecularly imprinted polymers for tetracycline by precipitation polymerization

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Chinese Chemical Letters 2007年第12期18卷 1535-1538页

作者： Tao Jing Xiao Dan Gao Peng Wang Yan Wang Yan Fei Lin Xu Chen zong Yi Kai Zhou Su Rong Mei MOE Key Lab of Environment and Health Institute of Environmental Medicine TongJi Medical College Huazhong University of Science and Technology Wuhan 430030 China Hubei entry-exit inspection and quarantine bureau of PRC Wuhan 430022 China

High selective molecularly imprinted polymers （MIPs） for tetracycline have been prepared by precipitation polymerization. Effects of monomer and solvent, the ratio of monomer and template and the characterization of the polymer were investigated by frontal chromatography and selectivity experiment. The results clearly indicated that the polymer, which had the highest molecular recognition abilities for tetracycline antibiotics, had been received.

关键词： Precipitation polymerization Tetracycline antibiotics Molecularly imprinted polymers (MIPs) HPLC

Comparison of Flow Field Distribution and Characteristic on Different Compact Spinning Systems

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Journal of Donghua University(English Edition) 2011年第3期28卷 326-330页

作者：薛文良魏孟媛汪燕程隆棣张瑞寅 Key Laboratory of Textile Science & Technology Ministry of Education Donghua University Engineering Research Center of Technical Textiles Ministry of Education Donghua University Shanghai entry-exit inspection and quarantine bureau

Numerical simulation models of compact spinning with perforated drum, punched apron and lattice apron were established and computerized with computational fluid dynamics(CFD) software. Characteristics of airflow in condensing zone were achieved. Velocity vectors of the flow on different systems were contrasted and discussed. Then, trajectories of fibers in condensing zone were simulated by a specially designed MATLAB program routine. The result of the simulation clarified the compact mechanism of the compact spinning systems. Also, it applied a guideline for reasonable utilization of the airflow in condensing zone.

关键词： perforated drum punched apron lattice apron flow filed simulation analysis