概述永停滴定法是容量分析中確定終點的一種方法。自動永停滴定儀是根據中國藥典77版所載的永停滴定法的要求而試制成功的一種新型儀器，并收載2000版藥典，用作于重氮化測定終點指示，它與外指示劑和觀察費體試液變化結果等比較，具有精度高、測定準確、使用方便、小巧輕便、性能穩定等優點。它是化學實驗室、藥品檢驗所、各大醫院、制藥廠、獸藥廠、飼料廠等進行醫藥化工等工業溶量分析的一必不可少的測定儀器。GENERALAscertainingend-pointtitrimetryisamethodtoascertaintheend-pointinvolumetricanalysis,theautomaticascertainingend-pointtitratorisanewinstrumentmanufac-turedaccordingtotherequirementofTitrimetryrecordedChineseCodex(Edition:77)whichcanbeusedtomeasuredia-zoniumend-pointindication.Ithastheadvantagessuchashighprecision,exactmeasurement,convenientusage,stableperformancecomparedwiththemethodsofusingexternalindicatorandwatchingFischerliquid,Itisanabso-lutelynecessaryinstrumenttoanalyzesolutionforchemicallabs,physicin-spectionorganizations,hospitals,phar-maceuticalfactoryandsoon