003701 837113W 方法M068(续上页) pH值测量和酸碱反应能力测定 方法M068 样品: 饮用水或表面水仪器: -梅特勒-办利多DL77、DL70ES或DL6750mL -打印机: HP Deskjet 制备: 于必要时过滤表面水 附件: -个滴定管驱动器DV90 个10 mL滴定管DV910 滴定剂1: 氢氧化钠c(Na0H)= 0.1 mol/L -温度配件(选购件) -滴定杯ME-101974 滴定剂2: 盐酸c(HCI)=0.1 mol/L 指示电极:-DG111-SC电极(连接Sensor 1插孔)-DT120电极(连接Temperature Sensor 1插孔) 标样1: 邻苯二甲酸氢钾70-100 mg 标样2: 3-(甲氧基)氨基甲烷50- 100 ma 结果: No ID1 ID2 Sample amount and results 1/1 H,0 Tap waterS 50.0 mLFixed volume U R1=7.79 pH R2 =0.06 mmol/L Cb8.2 1/2 H20 Tap waterS 50.0 mLFixed volume U R1=7.78 pH R2 =0.05 mmol/L Cb8.2 1/3 H,0 Tap waterS 50.0 mL Fixed volume U R1 = 7.77 pH R2=0.06 mmol/L Cb8.2 2/1 H2° Tap waterS 50.0 mLFixed volume U R7= 7.76 pH R8 =2.69 mmol/L Ca4.3 2/2 H20 Tap waterS 50.0 mLFixed volume U R7= 7.50 pH R8=2.69 mmol/L ix Ca4.3 2/3 H20 Tap waterS 50.0 mL Fixed volume U R7 = 7.50 pH R8 =2.69 mmol/L Ca4.3 E"t>3uOTaTpuo5SaX°uotatpuop sapeid teuyoeg T/Tourun atnsaa000T=5 atu::::queasuopn/to+[z]zdo=ta Z8qo .aueu 3tnsa SBX .uotatpuop ·· sepetd Teuyoea T/TO 000T=ED ::: aTun atnsagaueasuoo n/EDw[z]tao=cx BTn::::::::uoaueuatnsax E"t>a seX :::::: ..uotatpuopZ8 'ZIetauaaodiajingSOXE"tSaX t tetauaaod iajingpIepueas ainpaooid uotaenTeAaS*8sax tetaueod ae uoaeufmIaLO"OT [Tu] aunToAunuyxexOOZ PTOyseiyL00Z [ss](xem)3O"C [s (uT)30"T [s]3V50 [Au] avnoa(xem)AvSO0 [TM](uTm)AvaanToSqY AV SATUTTo8 ..·[AM](389)avNXadoaPOTTP3SUT SY ::::DS-TTTDC ::::::....3.T*0HOBNZ*8>3>E ::seXSXIaquJIdZ8>a>C"SOX ·iT/TOTOMOO0T=ZD:::::::::::m.Z*8qo Z8>8>E"夕SeXOOTaATHTSOdZ*8YaaSTO"OE·[ss]] (xex)3O"E (uT)30"T [s] 3VSO 【A]IZVZ"o [T]TO"O [T](uTm)AV08 L[A] (3as)avofweukaC冮 patTeasuT syDS-TTTDC O"OE epou ainseeHZ"O"TuriosuINasuoT3TPUODsanteA Jo etqeLafun andano:::::OTaTDuOSuotitpuop·· se:::3Tun atnsawinmioi::::::::::YOTATDUOSUOTHTPUO···[TM]eunToA meyxeyKouapuaLapor aufod pua[s] XeTea(X)Av‘··· seem Jo atunT·iosuasO :::./tom]uoaezquaouooHOBN:::::::::::.odt::::.3T.un atnsed:::::queasuop:::aeu atnse··.·······[s] (xem)3 0OT ·.·....[s] (upm)3 xTa ::.apom (T3 O·Z ::::[s]3vso ·[Am]av DS-TTTDC :::::.:.:.:......1··i.oTsuua0s 0m1 8:::::::::::::pas YdHaL zosuas ainpiadmaL requmu queTeAynba 8t isse itoxo‘H :: ··TaI 00S ·..·[T]emnToA n oToA pexTd ::: ·edA3Kxaua Tpueas TE:9T E66T-300-EzoHJo Aoede se8/poy..::::::::: OMT3/e3Pa.. 8900 CI poyaaH TE:9T E66T-300-EZ uotsieAoH jo Ayoedes aseg/pyoy 8900 TitrationTitrant .....HCl Concentration [mol/L].......0.1 Sensor·..· ,.。 DG111-SCUnit of meas.. . As installed Titration mode. ·EP Titrant addition . Dynamic [mL][mL] 4AE(set)[mV]·V(min) .8.0.0.01AV(max) ·..0.2AE [mV]At [s]::::::1.0 ti(min)[nsi ::::::3 3.ot(max) i[s].30.0Delay [s] 5 End point mode m3EPAPotential [mV,pH,...] 4.3 Tendency . NegativeMaximum volume [mL]... .10.0 Condition.. YesCondition............4.3