The electrochemical potentiokinetic reactivation technique(EPR) and the potentiostatic pulse technique(PPT) have been used to detect sensitization of austenitic sta
6—O—Mcthylgossypol (3) was obtained with the methods of synthesis for the first time.For the purpose ofe一iminating some prob一ems assoeiatedwith the eliniea
The chemical investigation of the aerial parts of Artemisia argyi gave α and β - amyrin, friedelin and a new cycloartane derivative whose structure was establ
Five phospholipids in human placenta were determined by phosphorus 31 nuclearmagnetic resonance(<sup>31</sup>P NMR)spectroscopy and thin-layer chromatography(TLC
Phenothiazine and i<sup>+</sup>s derivatives were oxidized by l<sub>2</sub> and 2,2,6,6-tetrametbyl-4-acetyloxypiperidine oxoammonium hexachloroantimonate to th