SSSAJ Journal of Natural Resources and Life Sciences Education
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Figure 4


Fig. 4. Effects of (a) P and NO3–N ions on N ion-selective electrode (ISE) response, (b) NO3–N and P ions on P ISE response, and (c) P and K ions on K ISE response; EMF = electromotive force. The standard deviation bars indicate EMF variation across three replications and five electrodes of the same type (n = 15).





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