Fig. 7: NC@ZIF-8 performance optimization diagram for detecting luteolin.

Effect of the a NC@ZIF-8 concentration used in GCE modification, b enrichment time, c enrichment potential, and d solution pH in the detection of 10 μM luteolin.

Effect of the a NC@ZIF-8 concentration used in GCE modification, b enrichment time, c enrichment potential, and d solution pH in the detection of 10 μM luteolin.