库仑法卡尔费休水分仪MKC-520测定N-甲基吡咯烷酮(NMP)中水分含量En

Kyoto Electronics Manufacturing Co.，Ltd.Data No.LN38-090427 No.EKCR-090427 KEM Application Note No.EKCR-090427 Coulometric Karl-Fischer Titration Moisture of N-methyl-2-pyrrolidone ·Summary- Checked the possibility of measuring moisture of N-methyl-2-pyrrolidone with MKC-520 andgood repeatability was obtained. -Measuring instrument- Main unit： IMKC-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 0.1g sample in the titration cell with syringe for the moisture measurement on thesample. -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- [Titration1 Method 2 t(stir) 0s t(wait) 15s t(max) 0s Drift Stop ： Rel 0.1 ug/s Cont. Gain 5.0 Stable 0.1 ug/min Start Manual Oven ： Off 「Calculatio n] Clac. No. 2 Unit ： Weight ：\Variable Drift Comp. ： Auto 「DataList1 Data Samp. Time 30s Display ： Off Print Meas. Data： Off Print Graphic ： Off [Result] No， wgH20 Conc[a 01 823.2 0.6697 02 840.8 0：6605 03 767.0 .6618 Date 2009/04/27 14：59Semple No.

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