Novel thiol-functionalized covalent organic framework-enabled ICP-MS measurement of ultra-trace metals in complex matrices

Abstract

The measurement of ultra-trace level of heavy metals in complex metrics is of great concern and challenge in life and environmental science. Herein, a novel thiol-functionalized covalent organic framework (COF)...

Recent applications of atomic spectroscopy coupled with magnetic solid‐phase extraction techniques for heavy metal determination in environmental samples: A review

“…The method exhibited low values for detection, LOD was 90 ng L −1 , RSD ≤0.54% and recoveries are within the limit of 91.23–104.26%, the material is stable, and the material can be reused up to 10 cycles. Yong Tian et al, [ 97 ] described the synthesis and application of new thiol‐functionalized material based on 1,3,5‐tri formyl phloro (TP) and 2,5‐divinyl‐p‐phenylenediamine (DvPa), further grafted with thiol functionalized material (TpDvPa‐S‐SH) as an adsorbent for MSPE and coupled with ICP‐MS for detection of various metal ions such as Co(II), Ni(II), Cd(II) from various water samples. The method showed decent recovery values between 87.5–95.4%, and RSDs ≤2.7%.…”

Tuning the surface charge and pore size of IPNs arrests covalent organic nanostructures through in situ exchangeable bonds for the removal of persistent contaminants

“…26,27 It has the ability to bioaccumulate through food chains and create havoc in the human ecosystem, and is thus regarded as a global threat with the Environmental Protection Agency (EPA) of the United States setting an upper limit of 2 ppb of mercury in potable water. 28–31…”

“…26,27 It has the ability to bioaccumulate through food chains and create havoc in the human ecosystem, and is thus regarded as a global threat with the Environmental Protection Agency (EPA) of the United States setting an upper limit of 2 ppb of mercury in potable water. [28][29][30][31] For the fabrication of these membranes, a novel thiol COF was synthesized in a two-step pathway. In the rst step, a hydroxyl-terminated COF was designed and subsequently thiol groups were introduced via simple chemical modication.…”

Magnetic relaxation switching assay based on three-dimensional assembly of Fe3O4@ZIF-8 for detection of cadmium ions

“…[6][7][8] The World Health Organization has mandated that the concentration of Cd 2+ in drinking water and air should be <0.005 mg L À1 and <5 ng m À3 , respectively. 9 Traditional Cd 2+ detection methods include inductively coupled plasma-mass spectrometry (ICP-MS) 10 and atomic absorption/uorescence spectrometry. 11,12 These methods have high detection sensitivity and reliable detection.…”