Ta_2O_5 films are prepared on BK7 substrates with conventional electron beam evaporation deposition.The effects of SiO_2 protective layers and annealing on the
以乙醇为溶剂,采用分光光度法测定米托蒽醌的含量.米托蒽醌浓度在4~10mg/L范围,线性关系良好(r=0.9999),方法的平均回收率为99.20%,RSD为0.20%(n=8);7个不同批号样品的RSD为0.01%~0.68%(n=3).
Using ethanol as solvent, the content of mitox