Electrochemical detection of Cd2+ ions by a self-assembled monolayer of 1,9-nonanedithiol on gold

Quantitative Studies of Metal Ion Adsorption on a Chemically Modified Carbon Surface: Adsorption of Cd(II) and Hg(II) on Glutathione Modified Carbon

“…Whilst the analytical value of these approaches has been amply demonstrated relatively less effort has been devoted to exploring, quantitatively, the adsorption characteristics of metals on modified surfaces. Mandler and Downard used some modified electrodes such as crown ether modified glassy carbon electrode [12], mercaptoalkanoic acid on gold electrode [14], cysteamine self assembled monolayer on gold electrode [16], 1,9nonadithiol on gold electrode [17], enzyme layers on glassy carbon electrodes [18], and alizarin modified on screen printed electrode [19] for the determination of heavy metal ions. In this paper we attempt to determine the adsorption isotherm characteristics of two model toxic metal cations on a glutathione modified carbon surface, and seek to encourage further development in the area such as making sensors for these species but more particularly providing an approach for the intelligent optimization of sensor materials.…”

Self assembled monolayers (SAMs) on metallic surfaces (gold and graphene) for electronic applications

“…59 The most basic functionalization is the addition of another thiol tail group to form a dithiol and many groups have used dithiols to sense heavy metal ions. Malel et al 60 used a nonanedithiol modied gold electrode to sense Cd ions. Fig.…”

Electrochemical Determination of Cu(II) Ions by 4‐Formylphenylboronic Acid Modified Gold Electrode

“…The advantages of SAMs include simplicity of preparation, versatility, stability, reproducibility and possibility to introduce different chemical functionalities [21,22]. As an alternative to environmentally unfriendly mercury- [12] and bismuth- [23] based electrodes several papers related to the detection of metal ions [4,7,24,25] including Cu(II) ions [26][27][28][29] using SAM-modified electrodes have been published recently. However the most of these Cu(II) ion selective electrodes are affected by interfering heavy metal ions (e.g.…”

“…The determination of pollution by heavy metals such as copper, mercury, lead, zinc and cadmium is of special concern because of the formation of complexes with proteins [1] and their high toxicity [2][3][4]. The heavy metal ions are hazardous to ecosystems and can cause serious danger to human population because of their accumulation in organs including liver, heart, brain etc.…”