【摘要】 本文研究了在CTMAB存在下水扬基荧光酮(SAF)作为荧光试剂的荧光熄灭法测定微量钯的方法。建立了最佳的测试条件,其激发波长和发射波长分别为282nm和538nm,反应的适宜酸度范围为pH6.0～7.5,钯量在0.2～10.0微克/25毫升范围内成直线关系,络合物的组成比为pd:SAF=1:3,标准偏差为0.17,用于三氧化二铝为载体钯催化剂中钯的测定得到了较为满意的结果。更多还原

【Abstract】 A fluoro-quenching method for determination of palladium with salicylfluorone in the presence of cetyltrimethylammonium bromide has been studied. The optimum conditions have been established. The excitation and emission wavelengths are 282 nm and 538 nm, respectively. Reactilinear range is 0.2-10.0μg Pd/25ml at pH from 6.0-7.5. The molar ratio of Pd to SAF is 1:3. The standard deviation of determination is 0.17 The method has been applied to the determination of Pd in the Pd-Al₂O₃ catalysts with satisfactory results.更多还原