If the persons to make the calender wanted to work out an almanac that accorded with the regularity of human activities,they must grasp the theory of the three rights and the five elements.

Study on the separation of tungsten through microemulsion extraction with tri-n-octylamine as mobile carrier;

Study of Extracting Chromium(Ⅵ) with Tri-n-octylamine-Chloroform;

Studies on Transport and Separation of Mo(Ⅵ) by the Emulsion Liquid Membrane of Tri-n-octylamine-SPAN 80-Oxylene;

Determination of Trace Gold by Flow Injection On-Line Preconcentration Flame Atomic Absorption Spectrometry with Trioctylamine LevextrelResin;

03 mol/L) trioctylamine (TOA) in the membrane phase, 0.

The glycidyl tripropylammonium chloride(GTPA)was prepared through reaction between tripropyl amine and epichlorodrin.

In this paper research is made on the synthetic procedure of mechyltrioctylamine chloride: mechyltrioctylamine iodide prepared by the reaction of tricaprylamine iodomethane at the room temperature, and then mechyltrioctylamine chloride prepared by the chlorination exchange reaction of methyltrioctylamine iodide with silver chloride.