应用日本京都电子公司(KEM) MKC-520库仑法卡尔费休水分仪测定丁酮中水分含量 的应 用资料实例。
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
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