烷基铵盐改性黏土的研究近年来引起了国内外学者的广泛关注，双价季铵盐的开发和利用为改性黏土的制备与性能研究开辟了新途径。
The development and application of bis-quaternary ammonium salts opened a new way for the preparation and the property research of modified clays.
分析了晶体化学式计算法、烷基季铵盐法和阳离子交换容量法的测定原理和计算方法。
The measurement principle and the crystal-chemical formula method, the cation exchange capacity method and alkyl ammonium method are discussed.
首选季铵盐阳离子螯合剂的氮化合物，包括中型或长链烷基。
Preferred cationic sequestrants are quaternary nitrogen compounds including medium or long chain alkyl groups.
采用荧光探针法研究了在烷基伯胺和季铵盐阳离子表面活性剂在一水硬铝石表面吸附层结构。
Pyrene fluorescence probe was used to investigate the structure of the adsorbed layer of cationic surfactants primary amines and quaternary amines at the diaspore-water interface.
选择天然钠基膨润土为原料，用季铵盐十八烷基二甲基苄基氯化铵（1827）将其制成有机膨润土。
The organobentonite from natural sodium bentonite has been prepared using benzyldimethylstearylammonium chloride(1827) as organic surfactant through ion-exchange reaction.
十二烷基硫酸铵； 月桂醇硫酸酯铵盐；
其主要杀菌机理是：环烷基咪唑啉季铵盐与DNA结合，引起DNA突变，从而导致细菌死亡。
The bactericidal mechanism is mainly involved in the combination of NIS with DNA, which causes DNA mutations and finally results in bacterial death.
季铵盐中烷基的转移具有较好的选择性，其优先顺序为：苄基＞伯烷基＞仲烷基。
Excellent selectivity in alkyl transfer was noted in the sequence of PhCH2> primary alkyl> secondary alkyl.
季铵盐中烷基的转移具有较好的选择性，其优先顺序为：苄基＞伯烷基＞仲烷基。
Excellent selectivity in alkyl transfer was noted in the sequence of PhCH2> primary alkyl> secondary alkyl.
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