ISS脱硫催化剂总铁含量测定研究  

Study of Determination of Total Iron Content in ISS Desulfurization Catalyst

作　　者：华南平[1] 狄俊伟[1] 王轶凡[1] 王振平[1] 

机构地区：[1]苏州大学化学化工学院,215006

出　　处：《化肥工业》2005年第1期39-41,共3页Chemical Fertilizer Industry

摘　　要：以1,2-二甲基-3-羟基吡啶-4-酮(Hdmp)为显色剂,与Fe3+配位成稳定络合物,最大吸收波长 450nm,铁含量在0.1～2.0μg/mL范围内符合比耳定律,于pH=8.5的NH3·H2O-NH4Cl缓冲溶液下测定。 采用EDTA作掩蔽剂,消除共存金属离子的干扰,其选择性高于其它测定方法。Hdmp is used as the developer and complexed with Fe 3+ to become a stable complex compound, with the largest absorption wave-length at 450 nm, the iron content in the range of 0.1～2.0 μg/mL conforms to the Beer′s law, and the determination is carried out in the NH 3·H 2O-NH 4Cl buffer solution of pH=8.5. EDTA is used as the covering agent to eliminate the interference from the co-existing metal ions, and the selectivity is higher than that of other methods of determination.

关 键 词：ISS脱硫催化剂 二甲基 NH3 吡啶 羟基 络合物 铁含量 配位 FE^2+ 缓冲溶液 

分 类 号：TQ028[化学工程] TQ113.247