采用靛蓝二磺酸钠分光光度法测定环境空气中的臭氧O3杨丽香

[](1956-),,,,采用靛蓝二磺酸钠分光光度法测定环境空气中的臭氧(O3)杨丽香,孙润泰,杨慧芳(,150010)[]::,,:012~110Lg/ml,(r=0199996),9818%,214%,0114~1010Lg/10m,l01015mg/m3(20L):[]靛蓝二磺酸钠;环境空气;臭氧[]O657132[]A[]1004-8685(2007)06-1029-02Applicationofindigodisulfonicacidsodiumspectrophotometryfordeterminationofo-zoneinambientairYangLi-xiang,SunRun-tai,YangHui-fang(HarbinCenterforDiseaseControlandPrevention,Harbin150010,China)[Abstract]Objective:Spectrophotometricmethoddeterminationofozoneinambientairbyusingindigodisulfonicacidsodiumisawellmethod1Methods:Accordingtothedegreeofcolorchange,theozoneintheambientaircausestheindigodisulfonicacidsodiumdiscolorationresponseanewcolorlessproduction1Results:Thelinearrelationwasgood(r=0199996),theaverageofo-zonewas9818%andtherelativestandarddeviationwas214%whentheconcentrationofambientairofozonewasintherangeof012~110Lg/ml1Thelowestdetectionconcentrationwas01015mg/m3(sampling20L)whentherangeofdeterminationwas0114~1010Lg/10ml1Conclusion:Itisasimple,fastmethodofhighselectivityandsensitivity1[Keywords]Indigodisulfonicacidsodium;Ambientair;Ozone(O3),,,,,,,,,,-,1154,,,(O3)/0,20L,01015mg/m3,0114~1010Lg/10ml210~1010Lg/10ml,110%~319%,214%,95%~104%,9818%1111原理,,,112试剂11211磷酸盐缓冲溶液01050mol/L618g711g,,1000ml11212靛蓝二磺酸钠标准储备液0125g,500ml,,24h()11213靛蓝二磺酸钠标准工作液110Lg,11214靛蓝二磺酸钠吸收液25ml,1L,113器材与仪器1),10ml,012~015L/min,10~20L;2):0~110L/min;3)721114分析步骤11411样品测定1010ml,,012~015L/min,60%,,102920076176ChineseJournalofHealthLaboratoryTechnology,Jun2007;Vol17No6210ml,10ml,610nm,210cm11412结果计算C(mg/m3)=(A0-A1)+(A0-A2)@BSV0:C)A0)A1)1A2)2BS)(Lg/ml)V0),L115标准工作曲线制备610ml,11010081006100410021000100ml10ml,,5(),0100~1010Lg/10m,lr=0199996,Y=01824X-01003,11(Lg/ml)0012014016018110A00116101324014880165601824S010038010036010036010058010062(%)214111017019018r01999962211吸收波长的选择014Lg018Lg,,UW-215550~650nm,1,,610nm,610nm1212采样效率的测定310ml,012~015L/min,,9615%,98%,213方法的精密度,,198~845Lg/m3,110%~410%,215%214方法的准确度,106~418Lg/m3,9512%~10316%,9818%,213%215两种测定方法的对比,,22(Lg/m3)149450623383443232228446045854084106228231731131784924849256260103313291120121112146142t,t=1109,t0105(11)=2120,tt0105(11),216臭氧测定(),33(min)(mg/m3)()4001015()400102(62)400107(2)16~20012017(2)16~20112113(2)16~20019112(2)16~200181113,,,,[][1]1[M]1:,19911[2]1[M]1:,19941(:2007-03-30)103020076176ChineseJournalofHealthLaboratoryTechnology,Jun2007;Vol17No6