前言微量铝的测定方法很多。过去常用铝试剂、铬天青S、邻苯二酚紫比色法。这些方法的缺点是不够稳定,对试剂要求严格。近年来,由于阳离子表面活性剂氯代十六烷基吡啶等在分析上的应用,提高了测定铝的灵敏度及方法的稳定性。本文将表面活性剂氯代十四烷基吡啶应 Preface There are many ways to determine trace aluminum. In the past commonly used aluminum reagent, chrome azure S, catechin purple colorimetry. The disadvantage of these methods is not stable enough, demanding reagents. In recent years, due to the cationic surfactant Cetylpyridinium chloride and other analytical applications, to improve the determination of the sensitivity of aluminum and the stability of the method. In this paper, the surfactant chlorinated tetradecyl pyridine should be