Combination of Syringe–Solid Phase Extraction with Inductively Coupled Plasma Mass Spectrometry for Efficient Heavy Metals Detection

Abstract

This work aimed to combine solid phase extraction (SPE) with inductively coupled plasma mass spectrometry for the determination of multi-elements (Pb, Cd, and Zn) simultaneously. This combination allows the purification of the solution by minimizing matrix effects, the separation of the analytes and a fast determination of multiple elements (Pb, Cd, and Zn) in seconds. A syringe-solid phase extraction (SYRINGE-SPE) method was developed based on adsorption/desorption of metals onto amino-functionalized hollow core mesoporous shell silica spheres (NH 2 -HCMSSs). The separation of NH 2 -HCMSSs from aqueous phase was assessed by capping the syringe with 0.2-mm filter. The results showed that the quantitative recovery of analytes was obtained at pH 6 by elution with 3 M HNO 3 . The developed method is applicable in the presence of different coexisting ions. The limit of detection was 0.021, 0.004, and 0.007 mg L À1 for Pb(II), Cd(II), and Zn(II) ions, respectively, whereas the limit of detection of the instrument without combination with the SYRINGE-SPE was 0.699, 0.123, and 0.24 mg L À1 for Pb(II), Cd(II), and Zn(II) ions, respectively. The relative standard deviations were 7.4, 6.2, and 5.4% for Pb(II), Cd(II), and Zn(II), respectively. The method was validated using corn bran (8433) certified reference material. The method was successfully applied for the determination of Pb(II), Cd(II), and Zn(II) in bottled water, tap water, beet, radish, carrot, potato, sweet potato, and turnip samples.Abbreviations: AAS, atomic absorption spectrometry; EDS, energydispersive X-ray spectroscopy; FTIR, Fourier transform infrared; ICP-MS, inductively coupled plasma mass spectrometry; LOD, limit of detection; LOQ, limit of quantification; NH 2 -HCMSS, amino-functionalized hollow core mesoporous shell silica sphere; SEM, scanning electron microscopy; SPE, solid-phase extraction; SYRINGE-SPE, syringe-solid phase extraction; TGA, thermal gravimetric analysis 720

Magneto-Fluorescent Hybrid Sensor CaCO3-Fe3O4-AgInS2/ZnS for the Detection of Heavy Metal Ions in Aqueous Media

“…Traditional methods for heavy metal analysis include atomic absorption spectrometry [ 10 , 11 ], inductively coupled plasma mass spectrometry [ 12 , 13 ], and different electrochemical analyses, e.g., potentiometric techniques [ 14 ]. However, these methods have complex sample preparation processes, low stability, and are not compatible with different environments, which significantly limits their applicability.…”

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

“…While fast response, high sensitivity, and wide sensing spectrum are the generally required parameters for sensing, ease of operation with low cost is also highly demanded. Conventional benchtop techniques such as inductively coupled plasma optical emission spectrometry (ICP‐OES), UV–Vis spectrometry, atomic absorption/emission spectroscopy, and laser‐induced breakdown spectroscopy (LIBS) are generally located in high‐level laboratories with professional personnel, which are not suitable for fast, inexpensive, and in situ measurements without tedious sample preparation. The growing demand for real‐time on‐site monitoring of water quality for human health and the environment requires a competitively sensitive and reliable method with low cost and less environmental pressure.…”

Ultrasonic supramolecular microextration of nickel (II) as N,N′-Dihydroxy-1,2-cyclohexanediimine chelates from water, tobacco and fertilizer samples before FAAS determination

“…Therefore considerable attention should be paid to monitoring of nickel concentrations in the water and food samples [8,9]. In order to achieve accurate determination of nickel, sample pretreatment is an important step to purify the sample solution and to preconcentrate the analyte before the available instrumental analysis [10,11]. Several procedures for samples pretreatments have been developed including; solid phase extraction [8][9][10][11], cloud point extraction [12], dispersive liquid-liquid microextraction [13,14].…”

“…In order to achieve accurate determination of nickel, sample pretreatment is an important step to purify the sample solution and to preconcentrate the analyte before the available instrumental analysis [10,11]. Several procedures for samples pretreatments have been developed including; solid phase extraction [8][9][10][11], cloud point extraction [12], dispersive liquid-liquid microextraction [13,14]. In addition, an online sonodigestion method was applied to extract nickel from water samples before the analysis by flame atomic absorption spectrometry [15].…”