Histamine selective microelectrode based on a synthetic organic liquid ion exchanger.
A two-barrel organic ion-sensitive microelectrode has been developed to electrochemically detect histamine activity. The synthesis of the histamine-sensitive liquid ion exchanger, composed of tetrafluorophenylboron histamine plus 3-nitro-o-xylol, and the construction of the two-barrel microelectrode (0.1-0.5 micron tip diameter) sensitive to histamine based on such an exchanger is reported. The calibration curves, their slope, selectivity, stability and detection limits for different solutions are described. High selectivity for Na+, K+, Ca2+ was observed.
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Department of Scientific Instruments, Zhejiang University, People's Republic of China.
D015374:Biosensing Techniques; D004563:Electrochemistry; D006632:Histamine / Q000032:analysis*; D007474:Ion Exchange; D008839:Microelectrodes
D006632:Histamine