Molybdate sensor based on 5,10,15,20-tetraphenylporphyrinatocobalt complex in a PVC matrix
作者： Vinod K. Gupta , Ajay K. Jain , Lok P. Singh , Upendra Khurana , Pankaj Kumar
DOI: 10.1016/S0003-2670(98)00629-1
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摘要: Abstract Poly(vinyl chloride) (PVC) based membranes of 5,10,15,20-tetraphenylporphyrinatocobalt, ( I ), incorporating dibutyl phthalate (DBP) in the composition 9:55:36 :PVC:DBP) responds to molybdate (MoO 2− 4 ) over concentration range 7.6×10 −6 –1.0×10 −1 mol l , pH between 4.9 and 11.3, with a Nernstian slope fast response time 15 s. The membrane shows excellent selectivity towards MoO ions number other anions exhibits stable for more than four months. sensor can be used non-aqueous medium no significant change value or working estimation solutions having upto 25% (v/v) fraction. It was applied molybdenum as sample molybdenite, low grade ore.
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