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You searched for: marta Remove constraint marta Journal name Food chemistry Remove constraint Journal name: Food chemistry Subject term acetonitrile Remove constraint Subject term: acetonitrile
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1. Combination of solvent extractants for dispersive liquid-liquid microextraction of fungicides from water and fruit samples by liquid chromatography with tandem mass spectrometry

Author:
Marta Pastor-Belda,   et al.   ; Isabel Garrido; Natalia Campillo; Pilar Viñas; Pilar Hellín; Pilar Flores; José Fenoll;     Show all 7 Authors
Source:
Food chemistry 2017 v.233 pp. 69-76
ISSN:
0308-8146
Subject:
acetonitrile; chloroform; evaporation; fruits; liquid chromatography; liquid-phase microextraction; multiresidue analysis; oxazoles; solvents; tandem mass spectrometry; tebuconazole; triazoles
Abstract:
... A multiresidue method was developed to determine twenty-five fungicides belonging to three different chemical families, oxazoles, strobilurins and triazoles, in water and fruit samples, using dispersive liquid-liquid microextraction (DLLME) and liquid chromatography/tandem mass spectrometry (LC-MS2). Solid-liquid extraction with acetonitrile was used for the analysis in fruits, the extract being u ...
DOI:
10.1016/j.foodchem.2017.04.094

2. Determination of neonicotinoids and 199 other pesticide residues in honey by liquid and gas chromatography coupled with tandem mass spectrometry

Author:
Marta Gaweł,   et al.   ; Tomasz Kiljanek; Alicja Niewiadowska; Stanisław Semeniuk; Milena Goliszek; Olga Burek; Andrzej Posyniak;     Show all 7 Authors
Source:
Food chemistry 2019 v.282 pp. 36-47
ISSN:
0308-8146
Subject:
acetamiprid; acetates; acetonitrile; amitraz; fungicides; gas chromatography-mass spectrometry; growth regulators; herbicides; honey; liquid chromatography; liquids; metabolites; pesticide residues; tandem mass spectrometry; thiacloprid; veterinary drugs; Poland
Abstract:
... Current work presents a modified QuEChERS method for the determination of 207 pesticide residues in honey by LC–MS/MS and GC–MS/MS. Acetate buffered acetonitrile extraction with Z-Sep+ and PSA dispersive-SPE clean-up were used for sample preparation. Optimised conditions allows determination of neonicotinoids as well as other insecticides, fungicides, herbicides, acaricides, growth regulators and ...
DOI:
10.1016/j.foodchem.2019.01.003

3. Determination of spirocyclic tetronic/tetramic acid derivatives and neonicotinoid insecticides in fruits and vegetables by liquid chromatography and mass spectrometry after dispersive liquid–liquid microextraction

Author:
Marta Pastor-Belda,   et al.   ; Isabel Garrido; Natalia Campillo; Pilar Viñas; Pilar Hellín; Pilar Flores; José Fenoll;     Show all 7 Authors
Source:
Food chemistry 2016 v.202 pp. 389-395
ISSN:
0308-8146
Subject:
acetamiprid; acetonitrile; detection limit; fruits; imidacloprid; lemons; liquid-phase microextraction; monitoring; reversed-phase liquid chromatography; spirodiclofen; spiromesifen; tandem mass spectrometry; thiacloprid; thiamethoxam; vegetables
Abstract:
... Dispersive liquid–liquid microextraction was used to preconcentrate three spirocyclic tetronic/tetramic acid derivatives (spirotetramat, spiromesifen and spirodiclofen) and five neonicotinoid (thiamethoxam, chlotianidin, imidacloprid, acetamiprid and thiacloprid) insecticides previously extracted from fruit and vegetable matrices with acetonitrile. The organic enriched phase was evaporated, recons ...
DOI:
10.1016/j.foodchem.2016.01.143

4. Fast analysis of capsaicinoids in Naga Jolokia extracts (Capsicum chinense) by high-performance liquid chromatography using fused core columns

Author:
Marta Ferreiro-González,   et al.   ; Tea Stipcovich; Gerardo F. Barbero; Miguel Palma; Carmelo G. Barroso;     Show all 5 Authors
Source:
Food chemistry 2018 v.239 pp. 217-224
ISSN:
0308-8146
Subject:
Capsicum chinense; acetic acid; acetonitrile; capsaicin; high performance liquid chromatography; hot peppers; solvents; variance
Abstract:
... A rapid high-performance liquid chromatography method with a C18 reverse-phase fused-core column has been developed for the determination and quantification of the main capsaicinoids (nornordihydrocapsaicin, nordihydrocapsaicin, capsaicin, dihydrocapsaicin, homocapsaicin and homodihydrocapsaicin) present in Naga Jolokia peppers. A fused-core Kinetex™ C18 column (50×2.1mm i.d.; 2.6μm) was used for ...
DOI:
10.1016/j.foodchem.2017.06.098

5. Simultaneous determination by UHPLC-PDA of major capsaicinoids and capsinoids contents in peppers

Author:
Marta Ferreiro-González,   et al.   ; Mercedes Vázquez-Espinosa; Ana V. González-de-Peredo; Estrella Espada-Bellido; Gerardo F. Barbero; Miguel Palma;     Show all 6 Authors
Source:
Food chemistry 2021 v.356 pp. 129688
ISSN:
0308-8146
Subject:
acetic acid; acetonitrile; capsaicinoids; detection; flow; food chemistry; injection; particle size; precision; quantitative analysis; separation; solvents; temperature; ultra-performance liquid chromatography; volume; water
Abstract:
... Capsaicinoids and capsinoids compounds have been a focus of special attention for their health benefits. An effective and rapid Ultra-High-Performance Liquid Chromatography (UHPLC-PDA) method has been developed and validated for the simultaneous separation and quantitative determination of the major capsaicinoids and capsinoids present in peppers. The separation of all the compounds of interest wa ...
DOI:
10.1016/j.foodchem.2021.129688