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27420118EnvironmentalMonitoringinChinaVol．27No．4Aug．2011511400。2174min。X830.2A1002-6002201104-0052-02DeterminationofThiocyanateIonsinElectroplatingWastewaterbyAutomaticPotentiometericTitrationYAOXiao-huaetal．GuangzhouAnnaEnvironmentalAnalysis＆TestingCo．Ltd．Panyu511400ChinaAbstractTheconditionandmethodtodeterminethiocyanateionbyautomaticpotentiometrictitrationwasstudied．Theresultsshowthattheselectionofsilverelectrodeasindicatorelectrodetheelectrode217withdoubleliquidjunctionasreferencethismethodhashighselectivityinnitricacidmediumtotitratethiocyanateion．Whenusedinelectroplatingwastewateranalysisthemethodissimpleandfastwhichcanprintouttheresultsin4minutes．KeywordsDeterminationofthiocyanateionsAutomaticpotentiometerictitrationElectroplatingwastewater2010-12-221968－．。。。14min。1ZDJ-4A216－217－。1+111。0.01mol/L1.699g1000ml。110℃KCNS98%0.8536g1000ml。500.0μg。100.00ml1000ml。50.00μg。22.150.00ml1+15ml40～50/。0.01mol/LV0.01mol/LTT=50mlCNS－0.01mol/L=2500V2.250.00mlDOI:10.19316/j.issn.1002-6002.2011.04.01353。0.01mol/LVCmg/L=T×V33.1AgCNS。1+1110ml5ml。3.2Ni2+、Zn2+、NH+4、K+Na+CNS－Cl－SO2－4。CNS－、。Br－CNS－AgBr7.7×10－132。Br－。Cr2O2－7100μg。25℃AgCNS1.16×10－12AgCl1.56×10－102CNS－Cl－。13。13.3CNS－。0.01mol/L。2。23.4CNS－。40～50/min。4min。3.51。1mg/L*mlCNS－%CNS－14.29350.07+0.14034.1324.32150.17+0.34034.0834.27349.84－0.32033.7644.28750.000.00034.2254.28149.93－0.14033.7664.25749.65－0.70034.3274.29150.05+0.10034.3284.32150.17+0.34033.99X——49.985－0.03034.073S—0.176—0.224RSD%—0.352—0.656*50.00mg/L27420118EnvironmentalMonitoringinChinaVol．27No．4Aug．20112010-06-032010-11-052009ZX07527-0022008091471972－檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶檶．1－0.70%～0.34%－0.03%。0.7%。1．M．1994．287318．2．M．1960．428432．3．J．201026532－34．6315012、、、、、6。UPLCBEHC18MRM。0.1～10μg/L1～100μg/L0.9990.010.1μg/L5.0μg/L98%～101%n=6RSD5%。、、、。X830.2A1002-6002201104-0054-03RapidDeterminationofSixCarbamatesinSurfaceandDrinkingWaterbyUPLCMS/MSMAOHai-qiongetal．NingboEnvironmentalMonitoringCentreNingbo315012ChinaAbstractArapidmethodwasestablishedtodetectsixcarbamatesinsurfaceanddrinkingwaterbyUPLC-MS/MS．Watersamplewasinitiallypreparedbyacetonitrileextractionandmembranefiltrationsimply．Goodlinearrelationshipswereobservedintherangeof0.1～10μg/Lor1.0～100μg/L．TheLODswere0.01or0.1μg/L．Theaveragespiked5.0μg/Lrecoverywere98%～101%n=6．TheRSDswerelessthan5%．Themethodwasselectivesensitiverapidandaccurate．KeywordsUPLC-MS/MSCarbarylMethomylCarbofuranSuncideAldicarbOxamyl、、、、、6。《》1《》2A0.05mg/LADI0.02mg/kg/day35。、、、4－6。－。4－－－。UPLC-MS/MS6。