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对对二氯苯、樟脑、萘三者混合物同时测定,一般填充柱很难将三者完全分离.作者利用SE-30弹性石英毛细管柱的高分辨性能,结合程序升温技术,将三者很好地完全分离.1 实验部分1.1 仪器GC-14A气相色谱(带FID检测器)C-R4A数据处理仪、AG245型电子天平.1.2 试剂 对二氯苯(纯度大于99.5%);樟脑(纯度大于99%);萘(色谱纯);丙酮(分析纯);无水乙醇(分析纯);氯仿(分析纯).1.3 色谱条件,色谱柱:15m×1.5μm×0.53mmIDSE-30弹性石英毛细管柱(Supelco公司);柱温:一阶程序升温,初始温度65℃,保持1min,20℃/min速率升温,终点温度120℃,保持时间1min;汽化室温度170℃;检测器温度170 ℃;载气(N2):0.098Mpa,不分流进样;尾吹(N2):0.0098Mpa;氢气0.078Mpa;空气0.039MPa.
For the simultaneous determination of p-dichlorobenzene, camphor and naphthalene, it is very difficult for the packed column to completely separate the three compounds.With the high-resolution performance of the SE-30 elastic quartz capillary column and the combination of temperature-programmed technology, the three are very good Completely separated .1 Experimental 1.1 Instruments GC-14A gas chromatography with FID detector C-R4A data processor, AG245 type electronic balance .1.2 reagent p-dichlorobenzene (purity greater than 99.5%); camphor (purity greater than 99 %); Naphthalene (chromatographic purity); acetone (analytical grade); absolute ethanol (analytical grade); chloroform (analytical grade) .1.3 chromatographic conditions, column: 15m × 1.5μm × 0.53mm IDSE-30 elastic quartz capillary column Supelco); column temperature: first-order temperature program, initial temperature 65 ° C, hold 1min, 20 ° C / min rate ramp, end temperature 120 ° C, hold time 1min; (N2): 0.098Mpa, splitless injection; tail blowing (N2): 0.0098Mpa; hydrogen 0.078Mpa; air 0.039MPa.