Table 6 Comparison of the characteristics performance of fabricated iron (III) selective electrode in this study with reported iron (III) electrodes
Ionophore | Working range (M) | Detection limit (M) | Slope (mV decade−1) | Response time (s) | pH | Refs. |
|---|---|---|---|---|---|---|
Bis-bidentate Schiff (BBS) | 1.0 × 10−7 to 1.0 × 10−2 | 7.4 × 10−8 | 19.3 ± 0.6 | < 15 | 1.9–5.1 | [2] |
µ-bis(tridentate) | 6.3 × 10−6 to 1.0 × 10−1 | 5.0 × 10−6 | 20.0 | 15 | 3.5–5.5 | [1] |
2-[(2-hydroxy-1-propenyl-buta-1,3-dienylimino)-methyl]-4-p-tolylazo-phenol [HPDTP] | 3.5 × 10−6 to 4.0 × 10−2 | (2.5 ± 0.5) × 10−6 | 28.5 ± 0.5 | 15 | 4.5–6.5 | [4] |
4-amino-6-methyl-3-methylmercapto-1,2,4-triazin-5-one (AMMTO) | 1.0 × 10−6 to 1.0 × 10−1 | 6.8 × 10−7 | 19.4 ± 0.5 | < 15 | 2.2–4.8 | [9] |
N(2hydroxyethyl)ethylenediamine-N, N′, N″-triacetic acid (NTA) | 1.0 × 10−9 to 1.0 × 10−2 | 3.0 × 10−10 | 19.5 ± 0.4 | 10 | 1.8–4.5 | [3] |
Current study | 1.0 × 10−6 to 1.0 × 10−1 | 8.0 × 10−7 | 19.51 ± 0.10 | 12 | 2.5–5.7 | – |