新型杂环三氮烯类光度显色剂的合成及应用研究

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1、西北工业大学硕士学位论文新型杂环三氮烯类光度显色剂的合成及应用研究姓名：沈燕申请学位级别：硕士专业：应用化学指导教师：张诚20050301西北工业大学硕士学位论文ABSTRACTInthisthesis,thestudyonanalyticalfunctionsoforganicreagentswassummarized.Theup-to-datecategoryandapplicationoftriazenegroupchromogenicreagentsweresummedup.Synthesisandapplic

2、ationofheterocyclictriazenereagentsbecomehotspot-researchingdirectionbecauseofhighsensitivityandselectivityindetermtnmgsomeheavymetalions.Severalsyntheticroutesofnewpatternheterocyclictriazenereagentswerestudied.Thesyntheticmethodofdiazo-reactionandcoincidence-r

3、eactionwasadopted.Itwasreportedthatsynthesisandcharacteristicsoftwonewchromogenicreagents:1-(5-nitro-2-pyridyl)-3-(azobenzene-4-sulfonicacid)-triazene(NPABST)and1-azobenzen-3-(3-nitro-2-pyridyl)-triazene(ABNM.Theselectionofmatieralandthesyntheticroutewerediscuss

4、ed.Theefectiononsynthesisofthetworeagentswasreviewedindetail.Theefectofconjugatesystemandsubstitutedgroupontheselectivityandsensitivityofthecomplexeswasinvestigated.Inthispaper,thespectrophotometricapplicationofNPABSTandABNPTwasinvestigatedindetail.Inthepresence

5、ofnon-ionicsurfacetantTween-80andNa2B407-NaOHattherangeofpH10.4^11.8,NPABSTformedastableredcomplexwithCadmium(1I)withthemolarratioof1:3.Themaximumabsorptionwavelengthofthecomplexisat525nmandthemolarabsorptivityis1.8X105L·mol-1·cmr.Inthepresenceofnon-ionicsurface

6、tantTritonX-100andNa2B407-NaOHattherangeofpH10.8-11.6,ABNPTformedastableamaranthcomplexwithNickel(II)withthemolarratioof1:3.Themaximumabsorptionwavelengthofthecomplexisat535nmandthemolarabsorptivityis1.6X105L·mol-1·cm-1,whichismostsensitivecolourreactionondeterm

7、iningNickel(11)ofheterocyclictriazenereagentspresently.ThenewheterocyclictriazenereagentscanbeappliedindeterminesomeheavymetalionssuchasCadmiumofindustricwastewater,environmentalwatersampleandNickelofcoresamplewithsatisfactoryresults,whichhasbetterapplicationbac

8、kgroundandsocietybenefit.西北工业大学硕r学位论文八BSTRACTKEYWORDS:1-(5-nitro-2-pyridyl)-3-(azobenzene-4-sulfonicacid)-triazene(NPABST),1-azobenzen-3-(3-nitro-2-pyridyl)-triazene(