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12.212.2.12.10.45m1mgPt+0.5mgCo/L1=A*50/BABml23350nm10~1003.124.SS1103~1055.P117121mL1mg112.2.21.1253.7nm0.1-0.5g/L2253.7nm0.05g/L3/485nm2g/L2.1A=kcAkc2518nm3.121pH8.5-9.5,510nm2pH4.0-5.5,535nm3pH9-10,440nm4.1DPC0.004mg/L1mg/L1DPC540nm2DPC540nm-21mg/L5.12.2.31.122.pH(1)2pH6-9pH6.5-8.53.1D0O2=8MV1000Vmg/LMmol/LVVmL8g/mol.(2)a.-b.4.P120NH3NH4+1ZnSO4,NaOHZn(OH)22pH6.0-7.4MgOMgOMgOH2pH2141-410-425nm0.025mg/L,2mg/L2-697nm0.01mg/L,1mg/L30.03mg/L,1400mg/L4pH6.0-7.4,-()N=V1-V0M141000Vmg/LV1mLV0mLMmol/L;VmL;14Ng/mol5.1-2-3-1665nm0.02mg/LS2-,0.8mg/L2A2S2O32-+I-=S4O62-+2I-S2-=c(V0-V1)16.031000Vmg/LcAV0AmlV1Aml16.031/2S2-g/mol30.2mg/L0.1-0.001mol/L6.1pH4NaOH2EDTApH2NaOH11mg/L100mg/LpH1127.8.0.45m1700nm2mg/L2mg/L50mg/L1mg/L20mg/L5%0.01mg/L0.6mg/L2-620nm