异丙醇中水检测方案(卡氏水分测定)

No.KCZ-13069 KEM Application Note KCZ-130 69Coulometric Karl Fischer titration Kyoto Electronics Manufacturing Co.，Ltd. Data No.ILA13-99051 Moisture measurement on 2-Propanol (Isopropyl Alcohol) -Summary- As the result of the feasibility study of the moisture measurement for 2-Propanol by MKC-520， agood repeatability was observed. Therefore， this measurement is judged possible. -Measuring instrument- -Measuring instrument- Main unit：MKC-520 Coulometric KF moisture titrator Electrode： M-713 Twin Platinum Electrode 98-103-0002 Inner burette (one chamber) 98-103-0002 Inner burette (one chamber) -Reagent- Anolyte： Coulomat AG -Measuring method- Preparation： (1) Put 150mL of Anolyte in the titration cell. (2) Pre-titrate it for dehydration. Measurement： (1) Take approximately 0.4g of the sample with the syringe and measure the moisture of it. -Equation- Moisture(ppm)：((Data-BGxt-Blank)/(Wt1-Wt2)) -Ambient conditions- Temperature： 22.8°℃ Weather： Fine -Measurement parameter- -Printout data- 「TITR.PARA1 Method 1 Titr. Cell No.1 t(Stir) 0s t(Wait) 0 s t(Max) 0s Drift Stop Rel 0.1 pg/s Cont.Gain 5.0 Stable 0.1 pg/min Start Auto Oven Off [CALCU.PARA1 Calc. No. 2 Unit ： ppm Weight ： Variable Drift Comp ： Auto ***Result*** Sample No. 01-01 Date 2013/09/10 09：34Titr. Cell No.1 Wt1 0.4029 g Wt2 0.0000 g Net 0.4029 gResult 114.8 ug 284.93 ppm ***Result*** Sample No. 01-02 Date 2013/09/10 09：38 Titr. Cell No.1 Wt1 0.4010 g Wt2 0.0000 g Net 0.4010 g Result 114.2 ug 284.79 ppm ** *Result * * * Sample No. 01-03 Date 2013/09/10 09：41 Titr. Cell No.1 Wt1 0.4016 gWt2 Net 0.0000 g0.4016 g Result 113.9 ug 283.62 ppm -Measurement results- Run Sample size (g) Moisture(pg) Conc. (ppm) Statistics 1234 5 0.40290.40100.40160.39920.4000 114.8114.2113.9113.9113.0 284.93284.79283.62285.32 282.50 MeanSD RSD 284.23 ppm1.1584 ppm0.4075% -Comments- -Comments- 网址： http：//kem.instrument.com.cn 京都电子工业株式会社-可睦电子(上海)商贸有限公司上海市徐汇区中山西路 电话： 电邮： kemu-kem@com 网址： http：//kem.instrument.com.cn