顶空气气相色谱法检测残留溶剂方法的对比研究

Contrastive study on methods of residual solvents by headspace gas chromatography

对比了国家标准与进出口标准两种检测方法,包括色谱条件和平衡条件。对同一样品的检测发现,两种方法溶剂残留量的检测结果差异较大。然而,色谱条件对其影响不明显,平衡温度对溶剂残留量的影响显著,故统一检测方法的条件是减少各个企业间和企业与检验机构间差异的关键。

The determination method of national standard was compared with that of imports and exports standard,including chromatographic and equilibrium conditions.For the same sample,the results were quite different in solvent residues determined by two methods.Chromatographic condition didn＇t affect the results evidently but the equilibrium temperature was reverse.Therefore,it is essential to unify the conditions in determination methods in order to reduce the differences between enterprises,enterprises and inspection organization.