Cadmium determination in phosphate fertiliser using a PAN-Nafion® modified glassy carbon electrode by stripping voltammetry

Application of MWCNTs/Fe3O4 modified electrode under inducing adsorption for rapid and sensitive detection of cadmium in a lab-on-valve system

“…Table 3 lists the linear ranges and detection limits for cadmium determination using different modied electrodes. 8,10,15,[22][23][24][25][26][27][28] It can be observed that the proposed method appears a greater linear range and lower detection limit compared to earlier works. These excellent properties are the result of a combination of factors including the large electroactive surface area and enhanced electron transfer of the MWCNTs/Fe 3 O 4 nanocomposite, as well as the inducing adsorption ability of I À .…”

Simple, insensitive to environmental matrix interferences method of trace cadmium determination in natural water samples

“…The majority of those analytical methods are associated with expensive apparatus, pretreatment of real samples, and complicated procedures. That is why voltammetric methods have been proposed and are considered to be preferable for the analysis of trace or ultra-trace heavy metals [17,18], including cadmium [19][20][21][22][23][24][25][26][27][28][29]. Among voltammetric techniques, the anodic stripping voltammetry (ASV) and adsorptive stripping voltammetry (AdSV) have commonly been used for cadmium determination.…”

“…Recently, a few ASV procedures have been reported for the determination of cadmium at various chemically modified electrodes. In these procedures, different electrodes were used such as the edge plane pyrolytic graphite [20], carbon nanotube nanoelectrode array [21], Nafion-coated bismuth film electrode [22], bismuth film zeolite doped carbon paste electrode [23], bismuth nano-powder electrode [24], carbon paste electrode modified with organofunctionalized mesoporous silica [25], bismuth/poly (bromocresol purple) film modified glassy carbon electrode [26], PAN-Nafion modified glassy carbon [27], carbon paste electrode modified with zirconium phosphate amorphous silica [28], and bismuth-antimony film electrode [29].…”