库仑法卡尔费休水分仪MKC-520测定丁酮中水分含量En

Kyoto Electronics Manufacturing Co.，Ltd.Data No.LN38-090429 No.EKCR-090429 KEM Application Note No.EKCR-090429 Coulometric Karl-Fischer Titration Moisture of Methyl ethyl ketone -Summary- Checked the possibility of measuring moisture of Methyl ethyl ketone with MKC-520 andgood repeatability was obtained. -Measuring instrument- Main unit： MKC-520 Coulometric KF moisture titrator Electrode：M-713 Twin platinum electrode #433-0006Inner burette -Reagent- Anolyte： Coulomat AK Catholyte： Coulomat CG-K -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 0.1g sample in the titration cell with syringe for the moisture measurement onthe 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： 26C R. Humidity： 42 % Weather： Fine -Measurement parameter- -Printout data- [Titration] Method 2 t(stir) 0s t(wait) 15 s t(max) 0s Drift Stop ： Rel 0.1 ug/s Cont. Gain 5.0 Stable 0.1 ug/min Start ：1Manual Oven ： Off [Calculation1 Clac. No. 2 Unit ：% Weight Variable Drift Comp. ： Auto 「Data List1 Data Samp. Time 30 s Display ： Off Print Meas. Data ：Off Print Graphic ： Off 关Resu.l t 兴关关 Date 09/04/2912：38 SamPle No. 01-02WiI 0.07339W12 0 Net 0.07339 Result 107.1LI 0.1461% 关*ResuILX关关 Date 09/04/2912：39Samele No. 01-03It1 0.0969寸+2Net 0.09699Result 138.6 u二 0.1430 Resul t Date 09/D4/2912：40 Sample No. 01-04Wtl 0.12379 W+2 Result 09Net 0.12379178.8 0.1445 -Measurement results- Run Sample size(g) Moisture(ug) Concentration(%) Statistics 123 0.0733 0.0969 0.1237 107.1138.6 178.8 0.1461 0.1430 0.1445 MeanSD RSD 0.1445% 0.0016% 1.0726% -Comments- -Comments- Http：//www.shxf17.com Tel： Fax： 周峰 zhou-fengcom