Abstract

A capillary column is prepared has dimensions of 30 m × 0.53 mm and a 2.82-µm layer of poly(1-trimethylsilyl-1-propyne) (PTMSP). The loading capacity and thermal stability are studied and compared to a commercial Rt-Q-BOND column with dimensions of 30 m × 0.32 mm × 10 µm. It is shown that the loading capacity with respect to ethylbenzene is 160 ng for a column with a PTMSP layer 2.82 µm thick, which is 8 times higher than for an Rt-Q-BOND column with a layer of a poly(divinylbenzene) sorbent 10 µm thick. The separating capacity of the prepared column, calculated for certain pairs of the peaks of the components of the butene–butane fraction, is superior to that of an Rt-Q-BOND column. The macrozone of methane, the fraction of which in the mixture is more than 90%, is selectively separated from the related impurities. A comparative assessment of the repeatability of the retention times of sulfur compounds on the studied column and a commercial column shows satisfactory repeatability, and the relative mean square deviation (RMSD) does not exceed 0.47%.

中文翻译：

---

聚（1-三甲基甲硅烷基-1-丙炔）薄膜厚度对毛细管柱色谱特性的影响

摘要

毛细管柱的尺寸为 30 m × 0.53 mm，并有一层 2.82 µm 的聚 (1-trimethylsilyl-1-propyne) (PTMSP)。研究了负载能力和热稳定性，并与尺寸为 30 m × 0.32 mm × 10 µm 的商用 Rt-Q-BOND 色谱柱进行了比较。结果表明，对于具有 2.82 µm 厚 PTMSP 层的色谱柱，乙苯的负载量为 160 ng，比具有聚（二乙烯基苯）吸附剂层的 Rt-Q-BOND 色谱柱高 8 倍 10微米厚。对于丁烯-丁烷馏分组分的某些峰对计算，制备的色谱柱的分离能力优于 Rt-Q-BOND 色谱柱。甲烷的宏观区域，在混合物中的比例超过 90%，选择性地与相关杂质分离。