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Start Over Descriptor "solid-phase extraction" Journal analytical and bioanalytical chemistry
322 results on '"solid-phase extraction"'

23. PEG-modified halloysite as a hydrophilic interaction and cation exchange mixed-mode sorbent for solid-phase extraction of biogenic amines in fish samples.

Author

Wang T, Chen Y, Hou C, and Qiao X

Subjects
Animals, Clay, Reproducibility of Results, Spermine, Solid Phase Extraction methods, Chromatography, High Pressure Liquid methods, Biogenic Amines analysis, Hydrophobic and Hydrophilic Interactions, Histamine analysis, Putrescine
Abstract

A novel type of PEG-modified halloysite was prepared and used as a hydrophilic interaction and cation exchange mixed-mode sorbent for solid-phase extraction of biogenic amines in fish samples. The eluates were analyzed by high-performance liquid chromatography-ultraviolet detection after the derivatization with benzoyl chloride. The developed sorbent was characterized by scanning electron microscopy, infrared spectroscopy, X-ray diffraction, zeta potential analyzer, and thermo-gravimetric analysis. After the optimization of various parameters influencing the extraction efficiency, the PEG-modified halloysite-based SPE method was evaluated. The adsorption capacities of putrescine, spermine, phenethylamine, and histamine were as high as 9.3, 8.5, 5.7, and 5.6 mg g -1 , respectively. Satisfactory reproducibility of sorbent preparation was obtained with within-batch and batch-to-batch relative standard deviations (RSDs) lower than 3.9% and 8.6%, respectively. The biogenic amine spiking recoveries in fish samples ranged from 84.3 to 105.5% with good RSDs lower than 7.8%. Intra-day and inter-day precision, expressed as RSDs, were better than 8.8%. The limits of detection of histamine, putrescine, phenethylamine, and spermine were 9.4, 1.9, 0.5, and 0.9 μg L -1 , respectively. This work provides a new hydrophilic interaction and cation exchange mixed-mode sorbent and is successfully applied to the extraction of trace biogenic amines from fish samples., (© 2022. Springer-Verlag GmbH Germany, part of Springer Nature.)

Published
2023
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24. Systematic assessment of extraction of pharmaceuticals and personal care products in water and sediment followed by liquid chromatography–tandem mass spectrometry

Author

R. Álvarez-Ruiz, D. Sadutto, Yolanda Picó, Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Generalitat Valenciana, Picó, Yolanda [0000-0002-9545-0965], and Picó, Yolanda

Subjects
Geologic Sediments, Triclocarban, Pharmaceuticals and personal care products, Cosmetics, 02 engineering and technology, Mass spectrometry, 01 natural sciences, Biochemistry, Environmental impact of pharmaceuticals and personal care products, Analytical Chemistry, chemistry.chemical_compound, Limit of Detection, Tandem Mass Spectrometry, Liquid chromatography–mass spectrometry, Solid phase extraction, Sodium dodecyl sulfate, Detection limit, Solid-phase extraction, Chromatography, Chemistry, Solid Phase Extraction, 010401 analytical chemistry, Extraction (chemistry), Reproducibility of Results, Ion pairing, 021001 nanoscience & nanotechnology, 0104 chemical sciences, High-performance liquid chromatography–tandem and mass spectrometry, Pharmaceutical Preparations, Environmental matrices, 0210 nano-technology, Sodium dodecyl sulfate solution, Water Pollutants, Chemical, Chromatography, Liquid
Abstract

Two solid-phase extraction methods were systematically studied to determine 32 pharmaceuticals and personal care products in water and sediments by ultrahigh-performance liquid chromatography–tandem mass spectrometry. One involves HLB cartridges activated with sodium dodecyl sulfate before the passage of the sample to form an ion pair with cationic analytes, and the other uses mixed HLB–cation exchange cartridges. The accuracy of the sodium dodecyl sulfate method was good for most compounds (recoveries of 61–120% with relative standard deviation less than 23%). However, the recoveries for atorvastatin, codeine, paracetamol, flufenamic acid, and salicylic acid were approximately 50% and for omeprazole and triclocarban were even lower (from 0 to 12%). The detection limits were 1.65–25 ng L-1 in water and 0.33–4.00 ng g-1 (dry weight) in sediment. The recoveries for the mixed-mode cartridge (Strata-X-CW) method ranged from 57% to 120% with relative standard deviation less than 21%, with the exception of codeine [25% (water)], metformin [11% (sediment)], paracetamol [48% (sediment)], and salicylic acid [32% (sediment)]. The detection limits were 1.65–38.35 ng L-1 in water and 0.33–10 ng g-1 (dry weight) in sediment. Both methods followed the same pattern when applied to water. For sediments, the recoveries, which offer good performance, were not very high, although 60% of the compounds had recoveries greater 80%. The methods were applied to the analysis of surface water and sediments from the Albufera Natural Park (Spain). Twenty-seven of 32 analytes were detected in the samples analyzed., The research that led to these results received funding from the Spanish Ministry of Science, Innovation and Universities and the European Regional Development Fund through the project WETANDPAC (RTI2018-097158-B-C31) and from the Generalitat Valenciana through the project ANTROPOCEN@ (PROMETEO/2018/155). Daniele Sadutto acknowledges the Generalitat Valenciana for his Santiago Grisolia grant: “GRISOLIAP/ 2018/102, Ref CPI-18-118.”.

Published
2020
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