The main purpose of this paper is to introduce a new method to study the immobile elements and mass transport of in geochemical process of wall-rock alteration.

Objective TO investigate the alteration of ion transport across the colonic epithelium in the rat descending colon applying by benzalkonium chloride (BAC).

Taking the elite athletes of Shandong Swimming Team as subjects and simulating altitude-live-low-training for 3 weeks, the alteration on oxygen-transport ability of the swimmers is observed.