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采用氧化铝填充毛细管柱(长12米,内径0.85—0.38毫米),柱温80℃。在室温下用结晶硫酸盐失水润湿载气,调节氧化铝的极性,在国产SP-1型毛细管填充柱两用色谱仪上,10分钟内使C_1—C_4饱和烃、烯烃等14个组分得到分离。定量结果表明,可以采用文献的校正因子,但对定量准确度尚需进一步考察。该柱制作工艺简单、价格便宜、稳定性好,使用寿命不少于4个月,可用于C_1—C_4烃的测定。
The column was filled with alumina (12 m long, 0.85-0.38 mm id) with a column temperature of 80 ° C. At room temperature with crystalline sulfate dehydration wet carrier gas, adjust the polarity of alumina, in the domestic SP-1 capillary packed column dual-use chromatographic instrument, the C_1-C_4 saturated hydrocarbons, olefins and other 14 The components are separated. Quantitative results show that the literature correction factor can be used, but the quantitative accuracy needs further study. The production process of the column is simple, the price is low, the stability is good, and the service life is not less than 4 months, which can be used for the determination of C_1-C_4 hydrocarbons.