尼龙66中水检测方案(卡氏水分测定)

Kyoto Electronics Manufacturing Co.， Ltd.Data No.LA47-07251 No.EKCR-07273 KEM Application Note No.EKCR-07273 Coulometric Karl-Fischer Titration Moisture of N-66 polymer -Summary- Checked the possibility of measuring moisture of N-66 polymer in combination of MKC-520with ADP-511S， and good repeatability was obtained. -Measuring instrument- Main unit：MKC-520 Coulometric KF moisture titrator Option： ADP-511SEvaporator Electrode： M-713 Twin platinum electrode #433-0006Inner burette ·Reagent- Anolyte： Coulomat AG Catholyte： Coulomat CG Carrier gas： Nitrogen -Measurement method- Preparation： (1) Fill the titration cell with the anolyte and inner burette with the catholyte. (2) Pretitrate for dehydration. (3) Connect MKC-520 with ADP-511S and set the nitrogen flow at 200mL/min and theevaporation temperature at 200°℃. Measurement： (1) Place 1g sample in the sample boat and measure for its moisture. -Equation- Moisture (ppm)： ((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- 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漕溪路222号航天大厦北楼902室电话：021-54488867 电邮： kemu-kem@163. com网址： http：//www.kyoto-kem.net.cn -Measurement parameter- -Printout data- [Titration1 Method 4 Titr. Cell No. 1 t(stir) 300s t(wait) 15 s t(max) 1800 s Drift Stop：： Rel 0.01 ug/s Cont. Gain 5.0 Stable 0.1 ug/min Start ：Manual Oven ： ADP- Oven Temp ：200°℃ Pre Treat 2 Back Purge180 s Cell Purge 120 s [Calculation] Clac. No. 2 Unit ：ppm Weight ：Variable Drift Comp. ：Auto DataList] Samp. Interval 60s Display ： Form2 Print Meas. Data： On Print Graphic ： Form2 ug 3000 00：30：00 ***Result*** Sample No. 03-01 Date 07/08/31 10：38 Titr. Cell No. 1Wt1 1.0105gWt2 0 g Net 1.0105 g Drift 0.11 ug/s Result 2925.0 Hg2894.6ppm Titr. Time ： 00：30： 15 -Measurement results- Run Sample size(g) Moisture(ug) Concentration(ppm) Statistics 123 1.0105 1.0123 0.9847 2925.02912.8 2790.2 2894.6 2878.02833.6 MeanSD RSD 2868.7 ppm31.538 ppm1.0994% -Comments- Compared with Karl Fisher Coulometry without a diaphragm. See the No.KCR-07272. 京都电子工业株式会社-可睦电子(上海)商贸有限公司电话：021-54488867 电邮： kemu-kem@163.com 上海市漕溪路222号航天大厦北楼902室网址： http：//www.kyoto-kem.net.cn