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CCS Chemistry 2019年第3期1卷 286-295页

作者： Jipan Yu Liyong Yuan Shuai Wang Jianhui Lan Lirong Zheng Chao Xu Jing Chen Lin Wang Zhiwei Huang Wuqing Tao Zhirong Liu Zhifang Chai John K.Gibson Weiqun Shi Laboratory of Nuclear Energy Chemistry Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China College of Nuclear Science and Engineering East China University of Science and TechnologyNanchang 330013China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Collaborative Innovation Center of Advanced Nuclear Energy Technology Institute of Nuclear and New Energy Technology(INET)Tsinghua UniversityBeijing 100084China Chemical Sciences Division Lawrence Berkeley National Laboratory(LBNL)BerkeleyCA 94720USA

Although solid-phase extraction is a useful approach for metal ion separation from aqueous solutions,existing sorbents suffer from low extraction effici-encies and/or instability when in contact with strong acidic *** report here the first study on rational design and fabrication of phosphonate-decorated covalent organic frameworks,COF-IHEP1 and COF-IHEP2,for efficient and selective extraction of of uranium(VI)[U(VI)]and plutonium(IV)[Pu(IV)]from highly acidic solutions.

关键词： COFs solid-phase extraction uranium plutonium highly acidic conditions

Simultaneous Determination of Ten Endocrine Hormone Disrupters in Water Using SPE/LC-(ESI)MS-MS

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Journal of Water Resource and Protection 2010年第9期2卷 818-829页

作者： Marta Henriques Vitor Vale Cardoso Alexandre Mourao Rodrigues Elisabete Ferreira Maria Joao Benoliel Cristina M.M.Almeida Faculty of Pharmacy Laboratory of HidrologyLisbonPortugal EPAL(Empresa Portuguesa dasÁguas Livres S.A.)Laboratorio Central da EPALLisbonPortugal iMed(The Institute for Medicines and Pharmaceutical Sciences) Faculty of PharmacyLisbonPortugal

The aim of this study was developed and validated an analytical method based on liquid chromatography and tandem mass spectrometry after solid phase extraction to monitorizing ten endocrine hormone disrupters in Lisbon drinking water system. Natural and synthetic hormones (17-β-estradiol, ethinylestradiol, estriol, estrone, progesterone, mestranol and diethylstilbestrol) and some industrial products (4-n-nonylphenol, 4-tert-octylphenol and bisphenol A) were studied. Mass spectrometer detection parameters were optimized, such as the best conditions for the precursor ion formation, namely cone voltage, when applying negative and positive electrospray ionization, and also collision energy for MRM1 and MRM2 transitions. The best conditions of the solid phase extraction (SPE) using Waters Oasis HLB (6 mL, 200 mg) and Isolute C18 (EC) (6 ml, 1000 mg) were also optimized. The method was validated through the application of several statistical tests and the uncertainty estimation of the analytical assay. This method showed a very good linear range for all the studied analytes with determination coefficients (r2) between 0.9962 and 0.9999 and coefficients of variation lower than 4%. There were no significant differences between recoveries obtained with the studied matrices, like groundwater, surface water and water for human consumption. In these matrices, the recovery values varied between 32 and 95%. The limits of method detection were between 0.28 and 22 ng/L. The validated method was applied for the analysis of water samples from the EPAL (Empresa Portuguesa das águas Livres, S.A.) water supply system including tap water, spring water, groundwater, and river water. Some target compounds (bisphenol A, progesterone, 4-tert-octylphenol, and 4-n-nonylphenol) were found in trace amounts in analysed waters.

关键词： Water Analysis Endocrine Disruptors Tandem Mass Spectrometry solid-phase extraction Uncertainty Evaluation

Research Advances in Detection Methods of Herbicide Paraquat

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Plant Diseases and Pests 2014年第6期5卷 29-33页

作者： Xu Zhen Zhao Fang Xie Benhua Chen Mingshan Zhu Hai Yue Zhenfeng Bi Siyuan Shenzhen Totaltest Technology Co. Ltd. Food Inspectionand Quarantine Technique Center Shenzhen Entry - Exit Inspection and Quarantine Bureau Shenzhen Bioeasy Biotechnologies Co. Ltd. School of Biotechnology Southern Medical University

This paper summarized the main detection methods of paraquat, including the instrumental analysis like HPLC, GC, LC-MS/MS, and so on. The re- search prospects of paraquat detection were also put forward.

关键词： Paraquat solid-phase extraction Instrmnental analysis

SPE结合GC-MS定性定量测定一次性塑料血袋水浸提液中的还原物质

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分析测试学报 2007年第Z1期26卷 40-43页

作者：付步芳冯晓明奚廷斐中国药品生物制品检定所北京100050

A method was established for qualitative and quantitative determination of the reducing substances from plastic blood bags aqueous *** samples were extracted with a solid-phase extraction procedure,dichloromethane qua extract solvents,and were measured with *** this method,we determined several reducing substances from plastic blood bags aqueous extract and fixed quantify on DEHP (di (2-ethylhexyl) phthalate),one of the dominating reducing *** method was simple and can be used for the quality control of plastic blood bags.

关键词： solid-phase extraction GC-MS Plastic blood bags Aqueous extract Reducing substances DEHP

The method for extraction and detection of sulfonamides by using molecularly imprinted polymers

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The method for extraction and detection of sulfonamides by u...

河南省化学会2016年学术年会

作者： Chao-Jun Wu Ning-Ning Chen Ming Zhang Yuan-Yuan Li Juan He School of Chemistry and Chemical Engineering Henan University of Technology

Sulfonamides are a kind of antibiotics for prophylaxis of dysentery and pneumonia in domestic animals, and the use of these antibiotics is defined, in order to prevent drug-resistant bacteria from being transmitted to humans by these animals. Sulfonamides generally appear at trace levels in the environment, so solid-phase extraction(SPE) procedures are commonly adopted to pre-concentrate and extract sulfonamides from complex matrices in order to remove background interfering compounds as much as possible. However, reported sample pretreatment techniques have some disadvantages such as poor identification, selectivity and specificity, as well as limited detection ability because of complex matrices. Therefore, molecularly imprinted polymers(MIPs) are an alternative as SPE sorbent to separate and enrich trace Sulfonamides from complex samples, due to specific recognition, strong affinity, high selectivity for the template molecule or its structural analogues. However, utilizing sulfonamides as template will cause template leakage which is unfavorable in analysis. Consequently,using the fragment of sulfonamides as the template molecule for imprinted polymers was adopted by suspension polymerization. The prepared polymers were then used as packing material in SPE columns to separate and enrich sulfonamides in real samples. The results showed that good precision and accuracy for sulfonamides and related compounds in real spiked samples demonstrated the feasibility of the prepared fragment imprinted polymers for sulfonamides extraction.

关键词： Sulfonamides solid-phase extraction molecularly imprinted polymers

Purification of caffeic acid from hawthorn using molecular imprinting polymers with deep eutectic solvents

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Purification of caffeic acid from hawthorn using molecular i...

第二十届全国色谱学术报告会及仪器展览会

作者： Qian Wang Guizhen Li Tao Zhu Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion School of Chemistry and Chemical Engineering Tianjin University of Technology

＜正＞Molecularly impr inted polymers（MIPs）with caffeic acid as template and non-imprinted polymers（NIPs）materials were prepared in an in an identical *** emission scanning electron microscopy（FE-SEM）and adsorpt... 详细信息

关键词： solid-phase extraction imprinted polymers deep eutectic solvents caffeic acid

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固相萃取GC/MS法对水溶液中硫丹的检验

固相萃取GC/MS法对水溶液中硫丹的检验

中国有机质谱学第十二届全国学术大会

作者：谢增瑞庞立新程相华陈玉芬河南省郑州市公安局刑科所

硫丹(Endosulfan),又称赛丹(Thiodan),其有效成分为:6,7,8,9,10,10-六氯-1,5,5a,6,9,9a-六氢-6,9-甲撑-2,4,3-苯并[e]-二恶噻频-3-氧化物(CHClOS)。它是一种兼具触杀、胃毒和熏蒸作用的长效、广谱杀虫剂,在农业生产中应用较为广泛。因... 详细信息

硫丹(Endosulfan),又称赛丹(Thiodan),其有效成分为:6,7,8,9,10,10-六氯-1,5,5a,6,9,9a-六氢-6,9-甲撑-2,4,3-苯并[e]-二恶噻频-3-氧化物(CHClOS)。它是一种兼具触杀、胃毒和熏蒸作用的长效、广谱杀虫剂,在农业生产中应用较为广泛。因此利用它投毒、自杀或误食的案件时有发生,特别是对鱼塘水中投毒的案件更为不鲜,由于鱼苗自身的耐药力较差,加之鱼塘的面积较大,给提取检验带来了一定的困

关键词： mass spectrometry determination of endosulfan in water gas chromatography-mass spectrometry solid-phase extraction

固相萃取-GC-MS法测定饲料中的沙丁胺醇

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固相萃取-GC-MS法测定饲料中的沙丁胺醇

2004年全国有机质谱学术交流会

作者：范理王彤田静高生苏晓鸥郑君杰国家饲料质量监督检验中心北京市饲料监察所

沙丁胺醇(salbutamol),化学名称1-(4-羟基-3-羟甲基苯基)-2-(叔丁氨基)乙醇(结构式如图1所示),俗称舒喘宁,属于β-兴奋剂类药物的一种,临床上用于治疗支气管哮喘。同时沙丁胺醇同克伦特罗(瘦肉精)一样还具有提高饲料的转化率,促进动物... 详细信息

沙丁胺醇(salbutamol),化学名称1-(4-羟基-3-羟甲基苯基)-2-(叔丁氨基)乙醇(结构式如图1所示),俗称舒喘宁,属于β-兴奋剂类药物的一种,临床上用于治疗支气管哮喘。同时沙丁胺醇同克伦特罗(瘦肉精)一样还具有提高饲料的转化率,促进动物生长的作用。但是,这种药物容易在动物内脏、组织中蓄积残留,有很大的副作用。由于近年来世界各地陆续发生食用残留克伦特罗的动物性食品的中毒事件,使得各国均加强了对克

关键词： Salbutomal Feed solid-phase extraction Gas chromatography - mass spectrometry

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多壁纳米碳管固相萃取测定水中的有机氯农药

多壁纳米碳管固相萃取测定水中的有机氯农药

2004年全国有机质谱学术交流会

作者：张玲金谢文明国家地质实验测试中心吉林农业大学

对于水样中的有机氯农药的净化方法主要是采用传统的液液分配的方法,缺点是溶剂使用量和前处理复杂。近年来固相萃取及固相微萃取等技术被应用到水样中的有机污染物的测定。如利用键合在硅胶上的非极性(C18,LC18等)或极性物质(LC-CN,LC-... 详细信息

对于水样中的有机氯农药的净化方法主要是采用传统的液液分配的方法,缺点是溶剂使用量和前处理复杂。近年来固相萃取及固相微萃取等技术被应用到水样中的有机污染物的测定。如利用键合在硅胶上的非极性(C18,LC18等)或极性物质(LC-CN,LC-NH2)对水中有机物进行富集,用GDX 或XAD自填的固相柱的报道也很多b。纳米技术和纳米材料的发展为开发固相萃取材料带来新契机。纳米材料是指尺寸大小在从1-100nm之间物质。与普通的块体材料相比,纳米材料具有

关键词： Multiwalled carbon nanotubes solid-phase extraction Organochlorine pesticides

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GC-MS法测定酞酸酯实验中干扰因素分析

GC-MS法测定酞酸酯实验中干扰因素分析

2005年全国有机质谱学术交流会

作者：刘晓茹刘玲花高继军童宝锋任学蓉中国水利水电科学研究院水环境研究所华中农业大学宁夏环境监测中心站

酞酸酯类物质(Phthalatic acid esters,PAEs)是环境激素类污染物,它是世界卫生组织1995年公布的必须控制的一类能干扰人体内分泌功能的化学物质。一些酞酸酯物质在许多国家被列为优先监测的污染物,在我国也引起了极大的关注,现已成为环... 详细信息

酞酸酯类物质(Phthalatic acid esters,PAEs)是环境激素类污染物,它是世界卫生组织1995年公布的必须控制的一类能干扰人体内分泌功能的化学物质。一些酞酸酯物质在许多国家被列为优先监测的污染物,在我国也引起了极大的关注,现已成为环境污染物的研究热点。

关键词： Phthalate esters solid-phase extraction Interference