合成了新试剂5-(3-羧基苯偶氮)-8-氨基喹啉(m-CPAQ)。在弱碱性介质中,Tween-80和TritonX-100存在下,m-CPAQ与Pd(Ⅱ)生成紫蓝色三元络合物,λmax=615nm,ε1=84×104L·mol-1·cm-1,Pd在0~30μg/25ml符合比尔定律。用于岩矿中微量Pd的测定,结果满意。
A new reagent 5- (3-
A two-step electrodeposition method was developed to prepare hydroxyapatite/metal composite coatings. Hydroxyapatite coatings were fabricated by electrochemical
The crystal structure of a new mineral of the stibnite group, Sb-2Se-3, has been determined. The cell constants, obtained by least-squares calculation from dire