合成了对甲苯磺酸三正丁铵,并以二氯甲烷为溶剂,用静态法涂敷于石英毛细管色谱柱上(30 m×0.53 mm i.d.,液膜厚度为1.2μm)作为气相色谱的固定相,对柱性能进行了考察。试验表明:此色谱固定相极性较强,对于小麦粉中过氧化苯甲酰有独...合成了对甲苯磺酸三正丁铵,并以二氯甲烷为溶剂,用静态法涂敷于石英毛细管色谱柱上(30 m×0.53 mm i.d.,液膜厚度为1.2μm)作为气相色谱的固定相,对柱性能进行了考察。试验表明:此色谱固定相极性较强,对于小麦粉中过氧化苯甲酰有独特的分离作用,在3个不同的浓度水平上作方法的精密度试验,得到的相对标准偏差值在1.1%～5.0%之间,线性范围为10～100 mg.L-1(r=0.994),检出限为2.0 mg.kg-1;方法的回收率为90.5%～95.0%。展开更多
采用汞塞动态法涂柱,以对甲苯磺酸三甲胺作为固定液制备了石英毛细管色谱柱,固定液量为9.0%(m/V),柱尺寸为30 m×0.32 mm i.d.。对该柱的性能进行了考察。实验结果表明,这种色谱固定相对于极性有机化合物如醇类物质、有机羧酸、酚...采用汞塞动态法涂柱,以对甲苯磺酸三甲胺作为固定液制备了石英毛细管色谱柱,固定液量为9.0%(m/V),柱尺寸为30 m×0.32 mm i.d.。对该柱的性能进行了考察。实验结果表明,这种色谱固定相对于极性有机化合物如醇类物质、有机羧酸、酚类物质等有良好的分离能力,且出峰快,时间短,峰形窄而对称。展开更多
Glass capillary column(9.3% W/V,30m×0.35mmi.d.)using copper dodecylbenzenesulphonate as stationary phase was prepared by dynamic coating method with mercury plug,and the acetone as solvent.The experiment showed t...Glass capillary column(9.3% W/V,30m×0.35mmi.d.)using copper dodecylbenzenesulphonate as stationary phase was prepared by dynamic coating method with mercury plug,and the acetone as solvent.The experiment showed that this kind of metal salt was selective and polar phase for gas chromatographyand and this column had higher column efficiency and stronger separating capability.phenol,o-cresol,m-cresol and o-benzenediol,p-benzenediol can be separated well in a direct injection mode on this column.The quantitative analysis of phenol,o-cresol,and m-cresol was investigated.展开更多
文摘采用汞塞动态法涂柱,以对甲苯磺酸三甲胺作为固定液制备了石英毛细管色谱柱,固定液量为9.0%(m/V),柱尺寸为30 m×0.32 mm i.d.。对该柱的性能进行了考察。实验结果表明,这种色谱固定相对于极性有机化合物如醇类物质、有机羧酸、酚类物质等有良好的分离能力,且出峰快,时间短,峰形窄而对称。
文摘Glass capillary column(9.3% W/V,30m×0.35mmi.d.)using copper dodecylbenzenesulphonate as stationary phase was prepared by dynamic coating method with mercury plug,and the acetone as solvent.The experiment showed that this kind of metal salt was selective and polar phase for gas chromatographyand and this column had higher column efficiency and stronger separating capability.phenol,o-cresol,m-cresol and o-benzenediol,p-benzenediol can be separated well in a direct injection mode on this column.The quantitative analysis of phenol,o-cresol,and m-cresol was investigated.
