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HJHJ/T2002005WaterqualityDeterminationofSulfideByGasphasemolecularabsorptionspectrometry2005-11-092006-01-01IHJ/T2002005112131415163738494104115IIHJ/T200200520051192006111HJ/T20020051202.6nm0.005mg/L0.020mg/L10mg/L228.8nm500mg/L2GB/T16489199633.145%10%H2S202.6nm51S/cm5.120minpH=895.2:C(H2SO4)=3mol/L5.3(H3PO4)10%5.4(H2O2)30%5.5C(NaOH)=1mol/L4g100ml5.6(Mg(Cl04)2):8105.7(KI)5.81%:1g100ml5.9C(Zn(Ac)2)=1mol/L:220gZn(Ac)2.H2O1000ml25.10+50g(Zn(Ac)2.H2O)12.5g(NaAc.H2O)1000mlHJ/T20055.11Zn(Ac)2+(NaAc)1%Zn(Ac)2.H2O0.3%NaAc.H2O5.12ZnCO33%Zn(NO3)2.6H2O1.5%Na2CO35.1310%Pb(AC)2.3H2O10min5.14C(1/6K2Cr2O7)=0.0500mol/L:1051102(K2Cr2O7)2.453g1000ml5.15C(Na2S2O3)0.05mol/L12.40gNa2S2O3.5H2O35min1000ml5:250ml,1g5.750ml,10.00ml5.145ml5.25min5.151ml5.8C(mol/mL)V1(ml)V2(ml)5.16C(1/2I2)=0.05mol/L6.400g250ml20g5.71000ml5.1712gNa2S.9H2O0.7g100ml250ml10ml1mol/L5.910ml5.1720ml0.1mol/L5.1660ml5.25ml,5min5.151ml5.810ml1mlmgV0mlV1mlCmol/L16.031/2S2-g/mol5.18(5.00g/ml)2100.100500.0VVC−×=()()00.1003.16/10×⋅−=CVVmLmg35mlZn(Ac)2+NaAc5.10800ml5.11000mlHJ/T20055.1666.16.1.16.1.2Zn6.1.3500ml010ml6.1.450ml6.1.535mm3m6.1.635mm6.1.76.1.86.1.9()1350ml45.6PVC6.1.16.1.15.1312346.235mA0.5L/min202.6nm100%117%735ml+5.105.5424h80.5mg/L2H2O21500mg/LNO2-2000mg/LSO32-1000mg/LS2O32I-SCN-4HJ/T200200599.15ml9.20.000.501.002.003.004.00ml5.185ml25.46.1.35ml5.3µg9.35ml20g9.21040ml200g6.1.4210ml5.1210ml6.1.55.11568106.1.825.46.1.310ml5.312min10()VmmLmgS0/,−=mgm0gVml1111.11.97mg/L0.09mg/L1.7%2.4%2.427.53mg/Ln=61.4%3.3%11.21.97mg/L0.09mg/L1.98mg/L0.5%0.2412.87g0.5010.00g92.0%104%