1·It is based on the iodine catalysed discoloring reaction of malachite green oxidized by chloramine t in hydrochloric acid medium.
基于在稀盐酸介质中,碘催化氯胺T氧化孔雀绿而使其褪色的反应,建立了测定痕量碘的新方法。
2·Through the studies on biochemical mechanism, the malolactic conversion mechanism was proposed that MLF was catalysed by LAB intracellular malolactic enzyme (MLE).
通过对MLF生化机理的研究,提出了MLF是LAB利用胞内苹果酸- 乳酸酶(MLE)直接催化苹果酸转变成乳酸的过程。
3·Four unsymmetrical biphenyl derivatives were synthesized with good yields by the tetrakis(triphenylphosphine) palladium (0) catalysed cross-coupling reaction of arylboronic acid with bromobenzene.
芳基硼酸在三苯基膦钯催化下,与溴代芳烃偶联反应,得到较高收率的不对称联苯衍生物。
4·Results show that the reactive speed of catalysed system can meet the retention time of reactive extrusion based on twin-screw extruder.
结果表明,催化体系的聚合反应速度完全满足双螺杆挤出机反应挤出停留时间的要求。