Determination of carboxylic acids in non-alcoholic beer samples by an ultrasonic-assisted dispersive micro-solid phase extraction based on Ni/Cu-Al layered double hydroxide nanocomposites followed by gas chromatography

Babaee, Shirin; Daneshfar, Ali; Khezeli, Tahere

doi:10.1016/j.ultsonch.2016.07.023

Cited by 24 publications

(3 citation statements)

References 39 publications

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“…Many studies have been published on applying SPE to beverage analysis. Most of them focus on the quantification of a certain group of VOCs [104][105][106], and the HS-SPE application was also used to obtain extracts with a composition closer to the orthonasal olfaction process [107]. An exciting variety of SPE uses small particles made of nanomaterials for liquid samples.…”

Section: Solid-phase Extractionmentioning

confidence: 99%

Application of Comprehensive 2D Gas Chromatography Coupled with Mass Spectrometry in Beer and Wine VOC Analysis

et al. 2023

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To meet consumer demand for fermented beverages with a wide range of flavors, as well as for quality assurance, it is important to characterize volatiles and their relationships with raw materials, microbial and fermentation processes, and the aging process. Sample preparation techniques coupled with comprehensive 2D gas chromatography (GC×GC) and mass spectrometry (MS) are proven techniques for the identification and quantification of various volatiles in fermented beverages. A few articles discuss the application of GC×GC for the measurement of fermented beverage volatiles and the problems faced in the experimental analysis. This review critically discusses each step of GC×GC-MS workflow in the specific context of fermented beverage volatiles’ research, including the most frequently applied volatile extraction techniques, GC×GC instrument setup, and data handling. The application of novel sampling techniques to shorten preparation times and increase analytical sensitivity is discussed. The pros and cons of thermal and flow modulators are evaluated, and emphasis is given to the use of polar-semipolar configurations to enhance detection limits. The most relevant Design of Experiment (DoE) strategies for GC×GC parameter optimization as well as data processing procedures are reported and discussed. Finally, some consideration of the current state of the art and future perspective, including the crucial role of AI and chemometrics.

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Section: Solid-phase Extractionmentioning

confidence: 99%

Application of Comprehensive 2D Gas Chromatography Coupled with Mass Spectrometry in Beer and Wine VOC Analysis

et al. 2023

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“…So, the optimum pH was found to be 6.0, since the removal percentage reached the maximum level at this pH value, given the fact that at acidic pH, LDH and Fe 3 O 4 @SiO 2 were dissolved and the structure of sorbent was destroyed. In addition, in the solution with higher pHs, the hydroxide precipitate of As (V) ions was formed and competition between OH − and As (V) ions for the adsorption on the surface of the sorbent occurred (15,38). Considering the pH-dependent behavior of AS adsorption on the synthesized sorbent, the adsorption process seemed to be controlled by different factors, such as electrostatic interactions and surface adsorption.…”

Section: Optimization Of Removal Conditionsmentioning

confidence: 99%

A new magnetic bio-sorbent for arsenate removal from the contaminated water: Characterization, isotherms, and kinetics

Adlnasab

Djafarzadeh

Maghsodi

2020

Environ Health Eng Manag

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Background: Arsenic (AS) is a heavy metal pollutant in water that has been known as one of the most important environmental contaminants due to its serious effects on both human health and the environment. This study was conducted to investigate the efficiency of calcined Co/Fe/Al LDH@Fe 3 O 4 @ PA as a new magnetic bio-sorbent for AS removal from the polluted water. Methods: At first, magnetic ternary calcined layered double hydroxide (Co/Fe/Al LDH) was synthesized through co-precipitation procedure. The synthesized CLDH was modified with phenylalanine amino acid, named CLDH@Fe 3 O 4 @PA. Infrared spectroscopy, X-ray diffraction, transmission, and field emission scanning electron microscopy (FESEM) were used to confirm the synthesis of the sorbent. The removal time, pH, and the sorbent dose were studied and optimized as the effective parameters on the As (V) removal. Results: The XRD, FTIR, TEM, SEM, EDS, and VSM techniques confirmed the properties of the synthesized magnetic bio-sorbent. Based on the optimization study, pH=6, the sorbent concentration of 30 mg, and the removal time of 5 minutes were considered as the optimum conditions with about 91% AS removal. The Langmuir isotherm with higher R 2 value was matched well with the obtained results, and values obtained for q m and R L were 167 mg g -1 and 0.976 to 0.993, respectively. The kinetics studies were fitted well with the linear pseudo-first-order model with higher R 2 at sorption process. Conclusion: The real samples results confirmed the excellent As (V) sorption capacity of the synthesized magnetic bio-sorbent in comparison with other sorbents. Therefore, CLDH@Fe 3 O 4 @PA sorbent is introduced as a new suitable sorbent for removal of As (V) from the polluted water.

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“…In this case, the magnetic sorbent was prepared by the coprecipitation of the desired LDH on already preformed nanoscale zero‐valent iron, and applied to the extraction of naphthols before HPLC analysis. Magnetic Ni/CuAl‐LDH nanocomposites were also evaluated as sorbents for ultrasound‐assisted D‐μ‐SPE of carboxylic acids from nonalcoholic beer samples . In this case, analytes were desorbed using acetonitrile and quantified by GC–FID.…”

Section: Layered Double Hydroxidesmentioning

confidence: 99%

Emerging materials for sample preparation

Maya

Cabello

Ghani

et al. 2017

J of Separation Science

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This review provides an update on the implementation of emerging materials as sorbents for sample preparation in combination with chromatographic separation. We have focused on recent applications of metal-organic frameworks, layered double hydroxides, porous carbons obtained from polymers or biomass precursors, and silicates (clays and zeolites). The review is directed toward the strategies followed by the authors to engineer suitable supports enabling the application of materials with unconventional size and shape as high-performance sorbents to explore new boundaries in sample pretreatment in manual or automated modes. K E Y W O R D Slayered double hydroxides, metal-organic frameworks, porous carbons, sample preparation, silicates

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Determination of carboxylic acids in non-alcoholic beer samples by an ultrasonic-assisted dispersive micro-solid phase extraction based on Ni/Cu-Al layered double hydroxide nanocomposites followed by gas chromatography

Cited by 24 publications

References 39 publications

Application of Comprehensive 2D Gas Chromatography Coupled with Mass Spectrometry in Beer and Wine VOC Analysis

Application of Comprehensive 2D Gas Chromatography Coupled with Mass Spectrometry in Beer and Wine VOC Analysis

A new magnetic bio-sorbent for arsenate removal from the contaminated water: Characterization, isotherms, and kinetics

Emerging materials for sample preparation

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