题目
英语翻译
是关于对一种食用糖的化学测试的翻译.
Standard Preparation Transfer about 25 mg of sucralose Standard for analytical use,accurately weighed,into a 25-ml volumetric flask.Dissolve in and dilute to volume with Mobile Phase.Filter the solution through a 0.45µm filter.
Chromatographic System (See Chromatograph,Appendix IIA.) Fit a high-performance liquid chromatographic system,operated at room temperature,with an 8-mmx10-cm,5-µm RadpakC18 (or equivalent) reverse-phase column.Maintain the Mobile Phase at a pressure and flow rate (typically 1.5 ml/min) capable of giving the required elution time (see the System Suitability Test,below).Use a refractive index detector.
是关于对一种食用糖的化学测试的翻译.
Standard Preparation Transfer about 25 mg of sucralose Standard for analytical use,accurately weighed,into a 25-ml volumetric flask.Dissolve in and dilute to volume with Mobile Phase.Filter the solution through a 0.45µm filter.
Chromatographic System (See Chromatograph,Appendix IIA.) Fit a high-performance liquid chromatographic system,operated at room temperature,with an 8-mmx10-cm,5-µm RadpakC18 (or equivalent) reverse-phase column.Maintain the Mobile Phase at a pressure and flow rate (typically 1.5 ml/min) capable of giving the required elution time (see the System Suitability Test,below).Use a refractive index detector.
提问时间:2020-07-25
答案
准备25mg三氯蔗糖做分析用,精确称量,放入25ml容量瓶中,用流动相溶解并稀释.用0.45µm的过滤器过滤此溶液.
色谱分析(见附录 IIA,色谱分析)用高精确的色谱分析系统,控制好室内温度,用8mm*10cm,5um RadpakC18 (或等量的)保留柱.在洗提时间内保持流动相固定压力和流速(1.5ml/min).然后用检定器来检测.
RadpakC18,这东西是什么,俺真不知道.汗颜啊,俺也是学化学出身的.
色谱分析(见附录 IIA,色谱分析)用高精确的色谱分析系统,控制好室内温度,用8mm*10cm,5um RadpakC18 (或等量的)保留柱.在洗提时间内保持流动相固定压力和流速(1.5ml/min).然后用检定器来检测.
RadpakC18,这东西是什么,俺真不知道.汗颜啊,俺也是学化学出身的.
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