乙醇中水分检测方案(卡氏水分测定)

Kyoto Electronics Manufacturing Co.， Ltd.Data No.LN38-110726 No.EKCR-110726上海市中山西路2366弄1号203室电话：021-54488867 电邮： kemu-kem@163.com 网址： http：//www.kem-china.com KEM Application Note No.EKCR-110726Coulometric Kar-Fischer Titration Moisture of Ethanol ·Summary- Checked the possibility of measuring moisture of Ethanol with MKC-501 and good r ep e at a b il i ty wa s o b ta i n ed . -Measuring instrument- Main unit： MKC-501 Coulometric KF moisture titrator Electrode： M-713 Twin platinum electrode #433-0006Inner burette -Reagent- Anolyte： Coulomat AG Catholyte： Coulomat CG -Measurement method- Preparation： (1)Fill the titration cell with the anolyte and the inner burette with the catholyte. (2) Pretitrate for dehydration. Measurement： (1) Place about 0.5mL sample in the titration cell with syringe for the moisture measurementon the sample. -Equation- Moisture (%)： ((Data-Driftxt-Blank)/(Wt1-Wt2))xF Data： Measured water content (ug) Drift ： Drift before measurement (ug/s)t：Measuring time(s) Blank： Blank value (ug) Wt1： Tare including sample weight (g) Wt2： Tare including residual weight (g) F ： Factor (1.00) ·Standard method- Karl Fischer method -Ambient conditions- Temperature：26°℃ R. Humidity：41% Weather： Fine t(max) 0s Drift Stop ： rel Rel(ug/s) 0.1 Result1 Calculation1 Unit ：% Weight ： Var Drift Comp.：auto Blank： ：(0 Result1 Report] Short Date 11/07/26 Date 11/07/26 Date 11/07/26 18：50 Sample No. 01-03 Wt1 0.3842 9 Wt2 0 9 Net 0.3842 9 Result 413.4 ug 0.1076 % -Measurement results- Run Sample size(g) Moisture(ug) Concentration(%) Statistics 1234 0.3831 0.3797 0.3842 0.3866 409.6 405.7 413.4 411.2 0.1069 0.1068 0.1076 0.1064 MeanSD RSD 0.1069%0.0005% 0.4668% 京都电子工业株式会社-可睦电子(上海)商贸有限公司