求助EP3.1.1中提到检测氯乙烯单体的气相色谱柱 EP3.1.1中提到检测氯乙烯单体,其中提到的色谱柱内容如下:Column: — material: stainless steel; — size: l = 3 m, Ø = 3 mm; — stationary phase: silanised diatomaceous earth for gas chromatography R impregnated with 5 per cent m/m of dimethylstearylamide R and 5 per cent m/m of macrogol 400 R. 请问哪位有做个这个,能否提供一下具体厂家的色谱柱,还有实验操作中要注意的,万分感谢 !