柚子酱油中食盐含量的测量 应用资料

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柚子酱油中食盐含量的测量 应用资料通过用0.1mol/L硝酸银溶液滴定来测量稀释样品中的盐含量的浓度。终点是滴定曲线上的最大拐点。盐含量度浓度根据终点处硝酸银溶液的滴定体积计算。KGM KYOTO ELECTRONICSMANUFACTURING CO.，LTD.TIF-97002enL-K-MKYOTO ELECTRONICSMANUFACTURING CO.，LTD. Application Memo Measurement of Salt Content in Ponzu Soy Sauce 1.Overview Salt concentration in the diluted sample is measured by titration with 0.1mol/L silver nitratesolution. The endpoint is the maximum inflexion on the titration curve. The salt concentrationis calculated from the titration volume of the silver nitrate solution at the endpoint. 2. Apparatus Main unitAutomatic potentiometric titrator (preamplifier STD)Electrode Silver electrodeMercury sulfate reference electrode 3. Reagents Titrant 0.1 mol/L silver nitrate solution Solvent Pure water —Measurement resultsS一 Sample Titration Conc. (mL) (mL) (%) 1 5.0 7.6024 8.895 2 5.0 7.6239 8.920 3 5.0 7.6160 8.911 Average 8.909 SD 0.013 RSD(%) 0.14 -Titration curve- 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 )