Sequential Injection Analysis System Exploiting On-line Solid-phase Extraction for the Determination of Strontium and Nickel by Microwave Plasma Atomic Emission Spectrometry

Abstract

A sequential flow-based analysis system with on-line solid-phase extraction (SPE) columns coupled to microwave plasma atomic emission spectrometry (MP-AES) was developed for strontium and nickel determination. Crown ether chromatographic resin and dimethylglyoxime polymethacrylate resin were used for strontium and nickel retention under acidic and basic conditions, respectively; eluted with a nitric acid solution in both cases followed by MP-AES detection. The calculated detection limits were 0.25 μg L -1 for strontium and 3.56 μg L -1 for nickel.

Flow-based System: A Highly Efficient Tool Speeds Up Data Production and Improves Analytical Performance

“…For a flow-based system/spectrometry hybrid, they are popular for the developed method to quantify metals. [148][149][150][151][152] For a flowbased system/chromatography hybrid, they were found to be a part of sample preparation before moving into a chromatographic system. Applications can apply to organic and inorganic compounds.…”

Solid-Phase Extraction for Environmental Analysis

“…11 Ayala and Takagai reported a sequential flow-based analysis system with on-line SPE columns, composed of crown ether and dimethylglyoxime resins, coupled with microwave plasma AES for the determination of Sr and Ni in water samples. 12 The detection limits were 0.25 and 3.56 μg L -1 for Sr and Ni, respectively. Yabutani et al reported on copper speciation, such as Cu(II), Cu(I) and hydrophobic Cu, in natural water using on-site sample treatment, C18 SPE, and ICP-MS analysis.…”

Amino-modified Graphene Oxide/Fe₃O₄ for Dispersive Solid-Phase Extraction of Cadmium Ions in Rice, Lentil, and Water Samples

“…Therefore, it is important to find simple and effective methods for cleaning food products. 5 Common techniques used for cleaning metal ions in a complex matrix include cloud-point extraction, 8 solid-phase extraction (SPE), 9 liquid-phase micro-extraction, 10 liquid-liquid extraction, 11 solid-phase micro-extraction, 12 zeolite cation exchange, 13 chemical precipitation, 14 solvent extraction, 15 ion exchange, 16 sedimentation, 17 chemical treatment, 18 electro-chemical methods, 19 reverse osmosis 19 and adsorption. 20,21 Among the techniques described, adsorption has been highly attracted due to simplicity and cheapness.…”