MODEL AFM PROBE FOR OXIDIZED MINERAL COLLECTOR, PREPARATION METHOD AND APPLICATION THEREOF

摘要

#$%^&*AU2020100499A420200514.pdf#####ABSTRACT The present invention belongs to the technical field of force measurement and reagent preparation, and particularly relates to model atomic force measurement (AFM) probe for an oxidized mineral collector. The AFM probe includes a probe with a surface compounded with an Au layer, and a modified oxidized mineral collector, where the oxidized mineral collector is a compound having the structural formula: Y-A (Formula 1); Y is a hydrophobic group, which is an aromatic group, an alkane group or an olefin group; A is an active group, which is a carboxylic acid or a hydroxamic acid; the modified oxidized mineral collector modifies Y with -SH and forms a coordination compound from A and an M metal ion; the modified oxidized mineral collector is anchored on the Au layer of the probe by the -SH therein. The present invention further discloses a preparation method and an application of the probe. The present invention fills in a gap of direct force measurement between an oxidized mineral collector and a mineral in the prior art. The present invention directly measures the force between the reagent and the mineral surface with an accurate measurement method. 18DRAWINGS Pb2*-activated spodumene surface spodumene surface FIG. 1 . jSpodumene110) in 10'MKCISoluion, PH 8.0 25 Souee10il M.~l~o~H. 30. 25- b ~its 10- L -5 0 5 10 i5 20 25 30 10 15 20 25 30 35 AdhesioN/Radius, F_/R (mN~m) AdhesionRadius .,R(mN/n) FIG. 2