Which of the following is not a problem of ion selective electrodes?(a) Interference with other ions(b) Output is influences by ionic strength(c) Drift in electrode potential during a sequence of measurements(d) Can measure only positive ionsThe question was asked during an interview for a job.This intriguing question comes from Ion Selective Electrodes-Principle and Types in division pH Meters and Ion Analysers of Analytical Instrumentation

Which of the following is not a problem of ion selective electrodes?(a

1.	Which of the following is not a problem of ion selective electrodes?(a) Interference with other ions(b) Output is influences by ionic strength(c) Drift in electrode potential during a sequence of measurements(d) Can measure only positive ionsThe question was asked during an interview for a job.This intriguing question comes from Ion Selective Electrodes-Principle and Types in division pH Meters and Ion Analysers of Analytical Instrumentation
Answer» Right CHOICE is (d) Can measure only positive IONS To explain: Ion selective ELECTRODES can measure both positive and negative ions. It is AFFECTED by INTERFERENCE from other ions.

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