表面活性剂在原子吸收法中的应用

STUDY ON THE APPLICATION OF SURFACE ACTIVE AGENT TO ATOMIC ABSORPTION SPECTROMETRY

本文研究了阳离子表面活性剂十六烷基三甲基溴化铵(简称CTMAB),阴离子表面活性剂十二烷基磺酸钠(简称SDS),非离子型表面活性剂聚乙烯醇(简称PVA)、Tween-80以及抗坏血酸(V.C)、丙醇、丙酮等数试剂对Ca的增感作用。初步探讨了其增感机理,并选用增感作用最强的SDS作为增敏剂,拟定了0.04%的SDS存在下AAS法测定Al_2O_3中CaO的新方法。

This article studies on some surfactants sensibilization to calcium. The reagents studied are CTMAB, SDS, PVA, Tween-80, V.C, propanol, acetone etc. Through the test, SDS is selected as the most desirable sensibilizer. The new method of testing CaO content in Al_2O_3 in the existence of 0.04% SDS has been worked out. This new method can be used in analysing standard samples, and the mathematical statistic result, through data analysis, shows no significant diviation.