作者: Ajit Kumar , Virendra Kumar , Uzra Diwan , K.K. Upadhyay
DOI: 10.1016/J.SNB.2012.09.089
关键词:
摘要: Abstract A simple ninhydrin–quinoxaline based colorimetric receptor 1 was designed, synthesized and characterized. The same exhibited high sensitivity selectivity towards Cu 2+ in aqueous medium (ethanol:H 2 O, 1:9, v/v) over a wide variation of cations such as Na + , Mg Al 3+ Co Fe Ni Zn Cd Hg Pb . addition to the solution gave clear colour change from olive green pink. detection limit found be 3.43 × 10 −7 M which is probably lowest one for an by any naked-eye till date. specificity along with control compound were investigated detail. This only second report where ninhydrin used construction sensor.