摘要
对7种常见的表面活性剂及其二元复配体系进行了核磁共振(NMR)分析,探索了多组分表面活性剂复配物的5种分离方法,比较了这5种分离方法对二元组分表面活性剂复配物的分离效果,并初步建立了核磁共振法分析多元表面活性剂复配产品的方法。采用该方法对3种企业样品中的表面活性剂进行了NMR测试,确认了各表面活性剂1H NMR的谱峰归属,并根据表面活性剂未重叠的特征峰计算了其在产品中的含量。结果表明,该方法准确、快速、简便,适用于复杂体系中表面活性剂的快速鉴定。
A rapid,accurate nuclear magnetic resonance（NMR） spectrometric technique was developed for the qualitative and quantitative analysis of multicomponent surfactant combinations.The efficient methods for the separation and identification of multicomponent surfactant mixtures were investigated in detail.The main characteristic peaks in the NMR spectra of surfactants were assigned,and the surfactant contents were obtained by NMR signal component analysis.The experimental results confirmed that NMR spectroscopy can be used to quantify the structures of surfactants in multicomponent systems.
出处
《分析测试学报》
CAS
CSCD
北大核心
2011年第7期769-775,共7页
Journal of Instrumental Analysis
