酸梅的总酸度测定 应用资料

酸梅的总酸度测定 应用资料在腌制的李子中加入纯水并均匀化后，过滤并获得样品溶液。用0.1mol/L氢氧化钠滴定至pH8.2，测量稀释样品液中的柠檬酸。柠檬酸浓度根据氢氧化钠的滴定体积计算为酸梅的总酸度。TIZ-99251enLK-MKYOTO ELECTRONICSMANUFACTURING CO.，LTD. Application Memo Acidity of Pickled Plum 1.Overview After adding pure water to the pickled plum and homogenizing， filter and get the sample1eaS训liquid. Citric acid in the diluted sample liquid is measured by titration with 0.1mol/L sodiumhydroxide up to pH8.2. The citric acid concentration is calculated as acidity of the pickledplum from the titration volume of sodium hydroxide. 2. Apparatus Main unit Automatic potentiometric titrator (preamplifier STD) Electrode Combined glass electrode Temperature compensation electrode 3. Reagents 4. Example Sample Titer Concentration (g) (mL) (w/w%) 1 0.5055 2.8954 3.605 2 0.5055 2.8726 3.576 3 0.5055 2.8861 3.593 Average 3.591 SD 0.015 RSD(%) 0.40 -Titration curve一 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