Voltammetric determination of nonelectroactive ions at a modified electrode

Abstract

Accurate wavelength calibration and a high degree of spatial resolution are required of a multichannel detector for atomic emission spectrometry. While our experience has been with inductively coupled plasmas (ICP), the energetic nature of many emission sources produces complex spectra, and it is imperative that an unknown line be correctly identified. It is often the case that lines are observed that are not listed in common wavelength tables (1,2), and a comprehensive listing

Prussian Blue and Its Analogues: Electrochemistry and Analytical Applications

“…The development of sensors for thallium (Tl ) [15], cesium (Cs ) [24] and potassium (K ) [25,26] pioneered the analytical applications of metal hexacyanoferrates (Table 1). Later the number of cationic analytes was enlarged, and included ammonium (NH 4 ) [27], rubidium (Rb ) [28] and even other mono-and divalent cations [29].…”

“…The participation of cations in redox reactions of metal hexacyanoferrates provides a unique opportunity for development of chemical sensors for nonelectroactive ions. The development of sensors for thallium (Tl ) [15], cesium (Cs ) [24] and potassium (K ) [25,26] pioneered the analytical applications of metal hexacyanoferrates (Table 1). Later the number of cationic analytes was enlarged, and included ammonium (NH 4 ) [27], rubidium (Rb ) [28] and even other mono-and divalent cations [29].…”

Nanostructured Mimic Enzymes for Biocatalysis and Biosensing

“…The development of sensors for thallium [131], cesium [132], and potassium [133,134] pioneered the analytical applications of metal hexacyanoferrates. Later, the number of cationic analytes was enlarged, including ammonium [135], rubidium [136], and other mono-and divalent cations [137].…”

Chemical and biological sensors based on electroactive inorganic polycrystals

“…The development of sensors for thallium (Tl ϩ ) [15], cesium (Cs ϩ ) [34], and potassium (K ϩ ) [35,36] pioneered analytical applications of metal hexacyanoferrates (Table 13.1). The development of sensors for thallium (Tl ϩ ) [15], cesium (Cs ϩ ) [34], and potassium (K ϩ ) [35,36] pioneered analytical applications of metal hexacyanoferrates (Table 13.1).…”

“…In particular, it [36,48], [35], [49][50][51], [41], [42], [24] NH 4 ϩ Cu [52] Tl ϩ Cu, Fe [15,53], [54,55] Ag ϩ Ag [29] As 3ϩ Fe [40] K ϩ , Cs ϩ Fe, Cu, Ag, Ni, Cd [56] K ϩ , NH 4 ϩ Cu [37] K ϩ , Rb ϩ , Cs ϩ , NH 4 ϩ Cu, Ni, Fe [38], [57,58] Cs ϩ , K ϩ , Na ϩ , Li ϩ Ni [59] Li ϩ , Na ϩ , K ϩ , Rb ϩ , Cs ϩ , H ϩ , Tl ϩ Tl ϩ [30] Mono-and divalent cations Cu, Ni [39] is rather hard to distinguish between the alkali metal ions and ammonium ion. In particular, it [36,48], [35], [49][50][51], [41], [42], [24] NH 4 ϩ Cu [52] Tl ϩ Cu, Fe [15,53], [54,55] Ag ϩ Ag [29] As 3ϩ Fe [40] K ϩ , Cs ϩ Fe, Cu, Ag, Ni, Cd [56] K ϩ , NH 4 ϩ Cu [37] K ϩ , Rb ϩ , Cs ϩ , NH 4 ϩ Cu, Ni, Fe [38], [57,58] Cs ϩ , K ϩ , Na ϩ , Li ϩ Ni [59] Li ϩ , Na ϩ , K ϩ...…”