An effective analytical system based on an ultraviolet atomizer for trace cadmium determination using atomic fluorescence spectrometry

Abstract

A novel ultraviolet (UV) atomization atomic fluorescence spectrometry (UV-AFS) system was developed for the quantitative analysis of trace cadmium ions (Cd) without preconcentration.

Multifunctional Photoelectrochemical Biosensor Based on ZnIn2S4/ZnS QDs@Au–Ag-Reversed Photocurrent of Cu-Metal–Organic Framework Coupled with CRISPR/Cas-12a-Shearing for Assay of Dual Targets

“…Trace amounts of Kana accumulate in the body through the food chain, threatening human health and even leading to potential cancer risks. 29−31 Some ingenious assays have been reported recently, such as those using deoxyribonucleases, 32 antibodies, 33 chelators, 34 and aptamers 35 as binding ligands. Aptamers have significant advantages in biosensor design, such as high stability and binding affinity to the target, making it interesting to use their aptamers in sensors.…”

A nanozyme-catalysis-based ratiometric electrochemical sensor for general detection of Cd2+

“…8 Thus, it is paramount to be able to accurately detect the concentration of Cd 2+ in drinking water and fresh water to defend the environment and evade pollution. Traditional methods of Cd 2+ detection focus on inductively coupled plasma atomic emission spectrometry, 9 atomic absorption/fluorescence spectrometry, 10 cold vapor atomic fluorescence spectrometry, 11 fluorescence spectroscopy, 12,13 and electrochemical approaches. 14,15 Among these, the electrochemical method has attracted research attention due to its merits, such as simplicity, cost-effectiveness, and high sensitivity.…”

Tuned Cd2+ Selectivity: Showcase of Electronic and Regio-Effect of π-Extended Di-2-Picolylamine-Substituted Quinoline-Based Tolans

“…Thus, the maximum allowed Cd 2+ concentration in drinking water containing microgram per liter has been recommended by the U.S. Environmental Protection Agency (EPA) [ 15 ]. In principle, various analytical techniques such as atomic absorption/emission spectroscopy [ 16 , 17 ], electrochemical methods [ 18 ], and inductively coupled plasma-mass spectrometry (ICP-MS) have been used for the determination of Cd 2+ . In contrast, the use of small-molecule fluorescent receptors has several advantages over other methods, such as high sensitivity, easy sample preparation, rapid response, and application at the cellular level [ 19 , 20 ].…”