化学分析质监员培训教程

11.2.1.2.==100%ABAA(AB)/2AB%=100%=100%=100%(AB)/2AB1.XiXn1.SDSX=2.RSDSXRSD=100%1)(2−−∑nxxx21.2.14655552.3242.322.3252.322.3262.332.3352.342.325012.331.2.03750.074539.54=39.540.0139.542.040.0739.54=41.652.13.920.01121.9723=0.01120.011213.90.01121.97=0.3073.4.1.981002.70803.40504.10305.2106.07.1.0.1g0.060.14g2g1.52.5g2.0g1.952.05g2.00g1.9952.005g2.3.4.35.6.10%1.0.3mg1302.3.mlml4.252201.0ml20mol/L/XXXYYYmol/LYYYmol/LXXX1.2.%100%101.0%25253030nn33n300n1n30042n1nn33n300n1n3002n1nn33n300n1n3002n152550100ml1234510ml61501.72.1210g200g10ml100ml100ml1500ml12K2CrO7H2SO4H2CrO7K2SO42CrO3H2OCr2O33[O]H2SO4H2OSO2[O]K2CrO73SO2H2SO4Cr2SO43K2SO4H2O3CrO34568g1606783.13233412607031.2.3.0.1mg0.01mg4.1.2.3.4.5.6.910mg7.1g100g100mg20g8.9.10.100mg100mg11.12.13.14.1.2.17235575%3.4.510g%=100%g=S1.SSO42-BaSO4AgBg2.S32===0.1374BaSO4233.43A0.1374%=-100%B1.2.2030%3.4.5.0.5%1%1.11199.9%2342.12aCu2+2KICu2K+I2Na2S2O3bXXXYYYmol/L1.2.12331.0.1%2.0.15%3.5%mg1.nmol=Mg/molnmol2.Cmol/L=-VL3.11mCV=CVCV=-M10.02mol/L2000mlKMnO4m=CKMnO4VKMnO4MKMnO4=0.022000/1000158.03=6.321g2K2Cr2O70.1275gNa2S2O322.85mlNa2S2O31molNa2S2O3=1mol1/2I2=1mol1/6K2Cr2O70.1275CNa2S2O322.85/1000=CNa2S2O3=0.1138mol/L1/6294.1831mol/L1000ml1.18HCl37.0%g/gMHCl=36.46g/mol131.18100037.0%CHCl==11.97mol/L36.4611.97V=11000V=83.5ml40.2275gNa2CO3HCl22.35mlHClNa2CO32HCl2NaClH2OCO21/2Na2CO3HClNaCl1/2H2O1/2CO2mNa2CO30.2275CHCl==-=0.1921mol/LVHClM1/2Na2CO322.35/1000106.00/251000ml0.1056mol/L0.1000mol/LXml0.10561000/1000=0.10001000/1000XX=0.056L=56.0ml60.1546g0.1mol/LAs2O36NaOH2Na3AsO33H2ONa3AsO3I2H2ONa3AsO4H+2I-1/4As2O31/2I2M1/4As2O3=197.82/4=49.45g/molmAs2O3=C1/2I2V1/2I2M1/4As2O30.1546V1/2I2==0.032L=32ml0.149.45T1.1mlTA/BABg/ml2.3mB=CAVAMBVA=1mB=CAMBTA/B=CAMBmBVACAMB3.1mlmol/Lmg144.0.1mol/L2NaOHH2SO4Na2SO42H2O21NaOH1/2H2SO41/2Na2SO4H2O11NaOH1/2H2SO440.002T1/2H2SO4/NaOH=C1/2H2SO4MNaOH=0.1000-=0.008g/ml=8.00mg/ml1000F1.F2.mol/LF=mol/L1.VFT%=100%msVVFT%=-100%ms2.VVFT%=-100%msV1F1V2F2T%=100%ms%%=-100%1.%VFT%=100%15/2.%VFT%=100%ml/ml3.VFT%=-100%/100%=%1.G.R.2.A.R.3.C.P.4.L.R.5.6.S.P.7.8.9.1.12a50ml25ml0.1ml0.01ml0.02ml20ml10ml0.02ml0.02/10100%=0.2%20ml0.1%16b10ml0.10.05ml0.02ml0.005mlc15ml0.01ml0.002mld25ml50ml10ml25ml10ml10ml10ml50ml25ml10ml2.123a510mlbc4abcd12173412ef41.5cm10.1mlg1.2.3.1.32.1cm60ml1cm3.154.1.182.153.1.2.333.510202550ml4.31cm5.H+OH-H2OHInIn-H+InOHIn+OH-19pH=pKHIn1pHpKHIn1pHpKHIn1PHpKHIn1pKHIn1KHin1.KHinKHin2.1HInIn-H+HInIn-2pHHinIn-[In-]KHIn[In-]=[HIn][H+]pH33.pH1.1pH202pH2.121.2.31.2.-1.2.1.2.3.21111.2.3.4.2703005.26.7.8.