卡尔费休试剂中标定（水-甲醇标准溶液）检测方案(卡氏水分测定)

KGM KYOTO ELECTRONICSMANUFACTURING CO.，LTD.KVX-01031enL-K-MKYOTO ELECTRONICSMANUFACTURING CO.，LTD. Application Memo Factor Determination on Karl Fischer Reagents(with Water-in-methanol Standard) Industry Inorganic chemicalInstrument Karl Fischer Moisture TitratorMeasurement method Volumetric titrationStandards GB/T 6283，JIS K 0113，JIS K 0068，JIS K 2275， ISO 760Japan Pharmacopoeia，13hASTM E203， ASTM D 1533，ASTM D 1744 1.Overview Moisture determination by Karl Fischer (KF) method has been most popularly practiced inthe world because it is recognized as the most reliable method for the measurement of water.The KF method is adopted by plenty of international institutions including not only GB， ISO，ASTM， DIN， and BS but also JIS， JAS and Japan Pharmacopoeia. In KF measurement， it is necessary to determine the factor (or titer) of KF reagents usingstandard substances before actual measurements.The example in this application note showsthe factor determination with Water-in-methanol Standard. 2. Apparatus Main unit Karl Fischer moisture titration volumetric system Electrode Twin Platinum Electrode 3. Reagents Titrant： Composite 5 (made by RdH) Solvent： Dehydrating solvent ML (made by Hayashi) 4. Example —Measurement results-S Run Vol. 1(mL) Water content(mg) Factor(mg/mL) Statistics 1 2345 1.185 1.1751.180 1.175 1.175 5.9700 5.97005.97005.9700 5.9700 5.0380 5.08095.05935.0809 5.0809 MeanSDRSD 5.0680 mg/mL0.0192 mg/mL0.3789% Please feel free to contact us for any further information. Kyoto Electronics Manufacturing Co.， Ltd. Overseas Sales & Marketing Sect. 京都电子工业株式会社-可睦电子(上海)商贸有限公司 上海市徐汇区宜山路333号1201室电话：021-54488867 电邮： kemu-kem@163.com 网址： http：//www.kem-china.com 卡尔费休试剂的标定(水-甲醇标准溶液) 应用资料(英文版)卡尔费休法测定水分是世界上广泛应用的方法，被认为是最可靠的测量水的方法。卡尔费休在许多国际标准中所采用，不仅包括GB、ISO、ASTM、DIN和BS，还有JIS、JAS和日本药典。在卡尔费休测量中，需要在实际测量前使用标准物质确定卡尔费休试剂的力价(滴定度)。本应用是使用水-甲醇标准溶液进行力价(滴定度)的测定。