色谱条件与系统适用性试验 用直径为0.18～0.25mm 的二乙烯苯-乙基乙烯苯型高分子多孔小球作为载体，柱温为120～150℃。理论板数按正丙醇峰计算应不低于700，乙醇峰与正丙醇峰的分离度应大于2.0。

　　校正因子测定 精密量取恒温至20℃的无水乙醇4ml、5ml、6ml，分别置100ml量瓶中，分别精密加入恒温至20℃的正丙醇（内标物质）5ml，用水稀释至刻度，摇匀（必要时可进一步稀释）。取上述三种溶液各适量，注入气相色谱仪，分别连续进样3次，测定峰面积，计算校正因子，所得校正因子的相对标准偏差不得大于2.0%。

　　测定法 精密量取恒温至20℃的供试品溶液适量（相当于乙醇约5ml），置100ml量瓶中，精密加入恒温至20℃的正丙醇5ml，用水稀释至刻度，摇匀（必要时可进一步稀释），取适量注入气相色谱仪，测定峰面积，按内标法以峰面积计算，即得。

　　编号:20240229009

　　型号:岛津401有机担体填充柱

　　规格:2m*4mm，60-80目

　　使用温度:250°C

　　适用于安捷伦6890,7820,7890,8860,8890，岛津GC-2010，GC-2014，GC-2018，GC-2030

　　应用:yao典中乙醇的测定

　　实例:

　　1氢hua可的song注射液乙醇量的气相色谱分析

　　Chromatographic conditions and system suitability tests were conducted using porous microspheres of divinylbenzene ethylenebenzene type polymer with a diameter of 0.18-0.25mm as the carrier, with a column temperature of 120-150 ℃. The theoretical number of plates should not be less than 700 when calculated based on the n-propanol peak, and the separation degree between the ethanol peak and the n-propanol peak should be greater than 2.0.

　　Calibration factor measurement: Precisely measure 4ml, 5ml, and 6ml of anhydrous ethanol at a constant temperature of 20 ℃, and place them in 100ml volumetric flasks. Precisely add 5ml of n-propanol (internal standard substance) at a constant temperature of 20 ℃, dilute with water to the mark, shake well (further dilution may be necessary). Take appropriate amounts of each of the three solutions mentioned above, inject them into the gas chromatograph, inject them three times continuously, measure the peak area, calculate the correction factor, and the relative standard deviation of the obtained correction factor shall not exceed 2.0%.

　　Measurement method: Precisely measure an appropriate amount of the test solution at a constant temperature of 20 ℃ (equivalent to about 5ml of ethanol), place it in a 100ml volumetric flask, add 5ml of n-propanol at a constant temperature of 20 ℃, dilute with water to the mark, shake well (further dilution may be necessary), take an appropriate amount and inject it into a gas chromatograph, measure the peak area, and calculate the peak area according to the internal standard method to obtain the result.

　　Number: 20240229009

　　Model: Shimadzu 401 organic support filling column

　　Specification: 2m * 4mm, 60-80 mesh

　　Operating temperature: 250 ° C

　　Applicable to Agilent 68907820789088608890, Shimadzu GC-2010, GC-2014, GC-2018, GC-2030

　　Application: Determination of ethanol in Yao Dian

　　Example:

　　Gas chromatography analysis of ethanol content in 1 hydrogen huake song injection