12-tungstophosphori相关论文
以乙酸和异戊醇为原料,用活性碳负载12-钨磷酸作催化剂合成了乙酸异戊酯,探讨了醇酸摩尔比、催化剂用量、反应时间、带水剂用量对......
采用室温下过量浸渍法,将具有Keggin结构的磷钨酸(PW)负载于活性炭上,制备了一系列不同负载量的PW/C催化剂.采用XRD、NH3-TPD和FT-IR等手......
Determination of Matrine and Oxymatrine in Radix Sophorae Flavescentis by Resonance Rayleigh Scatter
In 0.1 mol/L HCl medium, 12-tungstophosphoric(TP) acid reacted with matrine(Mat) and oxymatrine(Oxy) to form an ion-asso......