Determination of doxycyclinehydrochloride molecular imprinting chemiluminescence methodZhou Yanmei 1, Zhang Chengli 1, Lei Jian 2, Ma Tongsen 1, Ma 2 glorious, Su Zhiguo 2, Chao Yang 1College of chemistry and chemical engineering, Henan University 1. Henan Kaifeng 4750042 Chinese Science Institute of process engineering, State Key Laboratory of biochemical engineering, Beijing 100080The study found that in alkaline conditions, doxycycline hydrochloride has obvious enhancement of luminescence reaction Lumino ferricyanide system of ChemistryUsing the molecular imprinting, a new flow injection chemiluminescence method for the analysis of legal alligator doxycycline hydrochloride. Methacrylic acid as the functional monomer,Two glycol methacrylate synthesis of molecularly imprinted polymer of doxycycline hydrochloride as crosslinking agent. The molecularly imprinted polymer for molecular recognitionThe material, use a doxycycline hydrochloride a luminol Potassium Ferricyanide Chemiluminescence System, chemiluminescence analysis with flow injection technique was developed for the determination of chemical, saltAcid doxycycline highly selective molecularly imprinted a flow injection chemiluminescence analysis. The linear range of the method is 9 × 10 ~ 6 × 10_5 g called· rnL ~, the detection limit is 3.2 × 10q g · rrlL ~. Water doxycycline hydrochloride solution on 6.0X10 called G and rnL-1 were analyzed, 9 parallelThe relative standard deviation is 3.5%. Content determination of doxycycline hydrochloride in urine and doxycycline hydrochloride tablets by using this method, the result isSatisfied.Keywords molecularly imprinted polymer; flow injection; chemiluminescence; doxycycline hydrochlorideCLC number: 657.3 document code: A Ⅸ) I:10.3964 / j.issn.1000-0593{2009) 07 -1745-05IntroductionDoxycycline hydrochloride (doxycycline hydrochloride, DC) belongs to the secondGeneration of tetracycline antibiotics, hemolytic streptococcus, Staphylococcus aureus and gram positiveBacteria, Pasteurella multocida, Salmonella, Escherichia coli and other gram negativeInhibition of bacteria have a strong, had wider range of antibacterial, was widely used in livestockAnimal husbandry, aquaculture, part of the DC will be stored in the organism, which mayLead exceed the standard DC drug residues in food, thus causing harm to consumers. Because ofThis study established a rapid, accurate,, DC analysis technology, and to ensure food safetyIt has important scientific significance. At present, the determination method of IX reported in the literature: the mainA chromatographic method '2] [1 [3' 4], spectrometry, fluorescence [s], R61 spectrophotometry, capillary[7 '8] tube electrophoresis, chemiluminescence [gadolinium 10] etc..The experiment found that, under alkaline conditions, DC Lumino and potassium ferricyanide systemThe luminescent reaction has obvious enhancement, but because the method is selective limitSystem, is difficult to be applied in complex samples IX: Determination of content analysis. But the molecular markTrace polymer [11-14] is generally adopted by the template molecules with polymerizable functional monomerElectrostatic interactions, Fan Dehua forces, hydrophobic interaction and hydrogen bonding and other non covalent interactions and can beInverse covalent interaction of host guest complexes, adding initiator and crosslinking agentPolymerization, to prepare polymer, by chemical or physical methods to removeThe template molecule, can be "memory" template molecular structure and functional groups of Rigid PolyComplexes, thus the template molecules exhibit specific molecular recognition ability. The experimentSpecific recognition properties of the template molecule with molecular imprinted polymer and capture capability,The template molecule and coexisting substances in the sample separation, and chemiluminescence detectionMeasurement of chemiluminescence analysis method, so as to make up for the shortcomings of the selective. According toThis, this paper takes DC as the template molecular, methacrylic acid as the functional monomer, ethylene twoAlcohol two methyl acrylate as crosslinking agent: synthesis of IX molecular imprinted polymer, andFrom 74 to 100 Tan MIP particles filled in the glass tube column, packed in flow injectionThe photoelectric emission analyzer shoot multiplication optical window chemical pipe, using DC to RumiSensitization and chemiluminescence reaction of potassium ferricyanide chemical, established the DC moleculeA flow injection chemiluminescence analysis was imprinted chemical, and successfully applied to urine and tabletIn DC determination.The 1 part of the experiment1.1 instruments and reagentsIFFM-E type flow injection chemiluminescence analyzer (Xi'an remex analyzerFor a limited liability company); LabTech-1000 type ultraviolet visible spectrophotometer(Beijing Laib Teco Instrument Co. Ltd.); SKY 100C type constant temperature oscillationDevice (Shanghai Su Kun Industrial Co., Ltd.); KQ-100 type ultrasonic cleaner (KunshanUltrasonic instruments Co., Ltd.). Chemiluminescence flow path as shown in figure 1.Received date: 2008 - 08-10. revision date: 2008-11-20Foundation item: National Natural Science Foundation of China Youth (20506026), national high technology research and development program "863" project(2006AAloz437), 2008 year Henan province government decisionStudy on bidding project (B153) and 2008 year Henan Province Department of education science research project (200813610001) supportedAuthor brief introduction: Zhou Yanmei, female, born in 1970, associate professore-mail:zhouyrn of Henan University College of chemistry and Chemical Engineering (Luciola .ca, zhouymhd (. 163.COITIWanfang Data。