次氯酸钠溶液理化指标的分析

:1001-7658(2007)01-0053-03=阎海珠(青海省疾病控制中心,西宁810007),36.4~115.8g/L,,92%,25%;,pH915.5%~48.5%,,,;;;:R187:BANALYSISOFPHYSICO-CHEMICALINDEXESOFSODIUMHYPOCHLORITESOLU-TIONYANHai-zhu(QinghaiProvincialCenterforDiseaseContro,lXining810007,China)AbstractObjectiveToknowthephysico-chemicalpropertiesofsodiumhypochloritedisinfectantandtoanalyzethevarietiesandcontentsofmetalionsinit.MethodChemicalanalysisandinstrumentalanalysiswereusedtocarryoutlaboratoryobservation.ResultsTheavailablechlorinecontentinsodiumhypochloritedisinfectantsolutionrangedfrom36.4to115.8g/Laccordingtodifferentproductsanddifferenttimeafterleavingthefactory.Thefreebasecontentshowedphenomenonofexceedingallowablelimitandiron,leadandarseniccontentswerewithintherangespecifiedinnationalstandard.Theeligiblerateofavailablechlorinecontentinsodiumhypochloritestocksolutionwas92%,therateofexcee-dingallowablelimitoffreebasecontentwas25%andmetalionsdidnotexceedtheallowablelimit.Therewasnoobviouscorrelationbetweenavailablechlorinecontentandfreebasecontentinsodiumhypochlorite,buttherewaspositivecorrela-tionbetweenpHvalueandfreebasecontentinsodiumhypochloritesolution.Afterthesodiumhypochloritedisinfectionso-lutionwasstoredatroomtemperaturefor9months,itsavailablechlorinecontentdecreasedby15.5%~48.5%,buttherewasnosignificantchangeinfreebasecontent.ConclusionTherewasineligiblephenomenoninavailablechlorinecon-tentofsodiumhypochloritedisinfectionsolutionsoldinmarket,itsfreebasecontentobviouslyexceededallowablelimit,buttheharmfulmetalionsdidnotexceedtheallowablelimits.Keywordssodiumhypochlorite;metalion;physico-chemicalindex;chemicalanalysis,,,50%,,,11.1有效氯含量测定,;,5~10ml50ml,100g/L10ml2mol/L10m,l5min,0.1mol/L,5g/L2m,l#53#中国消毒学杂志2007年第24卷第1期(ml),31.2游离碱含量测定10~50ml250ml,,10g/L2~3,0.1mol/L,1.3铁铅砷含量测定-112,()56GB19106-200322.1理化指标测定结果,36.4~115.8g/L,,(1)1(%)363.64~11.58\5.0000(%,NaOH)360.09~3.370.1~1.0(%,Fe)10[0.0050[0.0050(%,Pb)10[0.0010[0.0010(%,As)10[0.0001[0.0001pH1111.04~13.58,92%,9,25%;2.2有效氯含量与游离碱之间关系分析结果20,r=0.286,tr=1.266,P0.05,,(2)pH,(r=0.780)2.3游离碱含量对有效氯稳定性影响分析结果,9915.5%~48.5%,(3)2pH(%)(%)pH(%)(%)pH16.800.73112.450.2112.4124.312.5213.58126.112.3913.4233.240.19133.640.4149.032.3213.05146.440.5056.623.30155.940.7812.7663.630.7512.61166.520.3912.6776.290.0911.04177.323.3785.880.17185.750.39911.580.4212.78196.400.3612.50106.110.68203.240.1612.0239(%)(%)16.03.5840.00.680.6825.944.3127.40.780.7835.804.4623.10.170.1546.623.4148.53.303.2556.114.7122.42.392.4166.525.1820.60.390.3873.642.9917.90.410.4288.807.4415.50.260.2696.444.6128.40.500.51102.451.7030.60.100.13116.294.4229.70.090.073,,,,,,,,,36.4~115.8g/L,\50g/L,,3,,,#54#ChineseJournalofDisinfection2007;24(1),pH,pH,pH,,122,0.1%~1.0%112.[J].,2004;14(3):382.122.[M].:,2002:104.(2006-06-12):1001-7658(2007)01-0055-03=唐素琴胡雪飞李泓1王霞肖红马桂英魏淑萍2(南昌大学第一附属医院,南昌330006;1南昌市三三四医院;2江西省人民医院),,27cfu/cm2,1728cfu/cm2,21072cfu/cm2,184cfu/cm2,2122cfu/cm2;130;25,,;;:R187:BOBSERVATIONONPROTECTIVEPROPERTYOFANEW-TYPEANTI-CONTAMINA-TIONPROTECTIVECOVERFORSICKBEDMATTRESSTANGSu-qin,HUXue-fei,LIHong1,WANGXia,XIAOHong,MAGui-ying,WEIShu-ping2(TheFirstAffiliatedHospita,lNanchangUniversity,Nanchang330006;1334HospitalofNanchangCity;2JiangxiProvincialPeoples'Hospita,lChina)AbstractObjectiveTostudytheanti-contaminationpropertyofanew-typeanti-contaminationprotectivecoverformattressandtoassessitsanti-contaminationefficacy.MethodOn-the-spotsamplingexaminationmethodwasusedtocarryoutexperimentalobservation.ResultsAftercleaningandultravioletirradiationdisinfection,thecontaminatingbacteriacountofthemattressinusewas27cfu/cm2inaverage.Thetotalbacteriacountincreasedto728cfu/cm2afterthemattresswasusedfor1weekandincreasedto1072cfu/cm2afterusefor2weeks.Whenthenew-typeanti-contamina-tionprotectivecoverwasusedforprotection,thetotalbacteriacountincreasedto84cfu/cm2afterusefor1weekandin-creasedtoonly122cfu/cm2afterusefor2weeks.Thecontaminatingbacteriacountwashighatlowerlayersamplingsitesinbothtestgroupandcontrolgroup.Thebacteriacountofthemattresswithoutuseofprotectivecoverafterusefor1weekincreasednear30timesascomparedwiththatjustafterdisinfection,whilethebacteriacountofthemattressusinganti-contaminationprotectivecoverincreasedlessthan5timesafterusefor2weeks..ConclusionThenew-typeanti-contaminationprotectivecoverhasgoodanti-contaminationefficacyforsickbedmattressinhospita.lItisconvenientforuseandissuitableforuseinhospitalsickbedandfamilysickbed.Keywordsmattressprotectivecover;protectionagainstcontamination;bacteria12(0301021),:0323111.9,,#55#中国消毒学杂志2007年第24卷第1期