Synthesis of methyl mandelate catalyzed by dodetungstophosphoric acid supported on modified silica;

Chemical modification the surface of lacquer film with titanium tetrachloride;

Study on pepsin′s chemical modification of nattokinase;

Polarize studies and chemical modifications of congo red compounds;

The suitable modification procedures were found as followsing: for every 1.

Developments of silica packings in high performance liquid chromatography are reviewed with 65 references Preparative and modification methods of silica packings are introduced The physical characterization on silica surface is elucidated The applications of silica packings in HPLC are outlined and the trends of silica packings in China are describe

Modification of IFNs by covalent attachment of soluble and nonimmunogenic polymers (for example polyethylene glycol, P.

The experimental results have been shown that the humid sensitive properties were greatly enhanced via chemical modified.

The emphasis of this dissertation is to apply chemical modified Sol-Gel process to the field of high temperature superconductor for developing the fine-p.

Inhibition effect of soybean isoflavones on the oxidative modification of low-density lipoprotein;

Inhibition of oxidative modification of human low density lipoprotein by simvastatin in vitro;

Effect of hippophae rhamnoides flavonoid monomers on oxidative modification of high density lipoprotein;