高效液体色谱法相关论文
该文确立了高效液化色谱法(HPLC)作为酚醛树脂的分析手段时的色谱条件,合成热塑性结构酚醛化合物10个(双酚环化合物三个,三酚环化合物七个),热固......
用乙醚为提取有机相,提取前先经碱化,提取后加酸使苯胺成盐,吹去乙醚,用HPLC法测定苯胺类化合物。方法适用于测定废水中苯胺类化合物。检出......
对实施汽油无铅化前后上海市环境空气中苯并[a]芘和多环芳烃的浓度变化进行了追踪研究。用中流量总悬浮颗粒物采样器,超细玻璃纤维......
COVALENTLY BONDING CHIRAL POLYURETHANE ON AMINATED SILICA GEL: A NEW STRATEGY TO PREPARE CHIRAL STAT
<正>Two polyurethanes of different molecular weights were prepared by the copolymerization of phenyl diisocyanate and di......