Table 3 Comparison of characteristic performance of the developed spectrophotometric methods for the determination of Cu(II) using thiosemicarbazones with some similar reported method
Name of the reagent | λmax (nm) | Beer’s law range (ppm) | ε × 104 (L/mol cm) | Applicability of the method | Reference |
|---|---|---|---|---|---|
2-Acetylpyridine thiosemicarbazone (2-APT) | 370 | 0.16–1.3 | 2.1 | Soil and vegetables samples | This study |
3-Acetylpyridine thiosemicarbazone (3-APT) | 350 | 0.44–1.05 | 0.67 | Soil and vegetables samples | This study |
Naphthazarin (5,8-dihydroxy-1,4-naphthoquinone; Naph) | 330 | 0.9–4.5 | 1.84 | Alloy samples | Chaisuksant et al. (2000) |
3-{2-[2-(2-Hydroxyimino-1-methyl-propylideneamino)-ethylamino]-ethyl-imino}-butan-2-one oxime (H2mdo) | 570 | 0.2–225 | 0.16 | Pharmaceutical and biological samples | Dalman et al. (2002) |
1-Phenyl-1,2-propanedione-2-oxime thiosemicarbazone (PPDOT) | 465 | 0.38–7.63 | 0.556 | Edible oil and seed samples | Reddy et al. (2003) |
3,3,5,5-Tetramethylbenzidine (TMB) | 660 | 0.003–0.1 | 25.4 | Multivitamin–multimineral tablet, river water and wastewater samples | Di et al. (2005) |
Thiomichlersketone (TMK) | 500 | 0–0.6 | 5.7 | Water samples | Fu and Yuan (2007) |
1-(2,4-Dinitro aminophenyl)-4,4,6-trimethyl-1,4-dihydropyrimidine-2-thiol [2,4-dinitro APTPT] | 445, 645 | 10–80 | 0.087 | Alloys, pharmaceuticals and biological samples | Kamble et al. (2011) |
N′′,N′′′-bis[(E)-(4-Fluorophenyl) methylidene]thiocarbonohydrazide [bis(4-fluoroPM)TCH] | 375 | 2.0–14 | 4.25 | Alloys, food, pharmaceuticals and pesticide samples | Nalawade et al. (2015) |