Preparation of C18 composite solid-phase microextraction fiber and its application to the determination of organochlorine pesticides in water samples

Li, Siyan; Lu, Chengwei; Zhu, Fang; Jiang, Ruifen; Ouyang, Gangfeng

doi:10.1016/j.aca.2015.03.031

Cited by 41 publications

(13 citation statements)

References 42 publications

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“…From the analytical aspect, the linear range and LOD of the proposed method were approximately the same or better than those of some other methods, which represents the promising future of our present MMOF for determination of AMP from complicated cow milk samples [ 3 , [41] , [42] , [43] ] ( Table 3 ). Moreover, the prepared MMOF was compared with some commercial sorbents presented in Table 4 [ [44] , [45] , [46] , [47] , [48] , [49] , [50] , [51] , [52] , [53] , [54] ]. These sorbents have been applied for determination of different compounds.…”

Section: Resultsmentioning

confidence: 99%

Magnetic metal organic framework for pre-concentration of ampicillin from cow milk samples

Bagheri

Ghaedi

2020

Journal of Pharmaceutical Analysis

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The aim of this study is a present of a simple solvothermal synthesis approach to preparation of Cu-based magnetic metal organic framework (MMOF) and subsequently its application as sorbent for ultrasound assisted magnetic solid phase extraction (UAMSPE) of ampicillin (AMP) from cow milk samples prior to high performance liquid chromatography-Ultraviolet (HPLC-UV) determination. Characteristics of prepared MMOF were fully investigated by different techniques which showed the exclusive properties of proposed sorbent in terms of proper functionality, desirable magnetic property and also high specific surface area. Different influential factors on extraction recovery including sorbent dosage, ultrasonic time, washing solvent volume and eluent solvent volume were assessed using central composite design (CCD) based response surface methodology (RSM) as an operative and powerful optimization tool. This is the first report for determination of AMP using MMOF. The proposed method addressed some drawbacks of other methods and sorbents for determination of AMP. The presented method decreases the extraction time (4 min) and also enhances adsorption capacity (250 mg/g). Moreover, the magnetic property of presented sorbent (15 emu/g) accelerates the extraction process which does not need filtration, centrifuge and precipitation procedures. Under the optimized conditions, the proposed method is applicable for linear range of 1.0–5000.0 μg/L with detection limit of 0.29 μg/L, satisfactory recoveries (≥95.0%) and acceptable repeatability (RSD less than 4.0%). The present study indicates highly promising perspectives of MMOF for highly effective analysis of AMP in complicated matrices.

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Section: Resultsmentioning

confidence: 99%

Magnetic metal organic framework for pre-concentration of ampicillin from cow milk samples

Bagheri

Ghaedi

2020

Journal of Pharmaceutical Analysis

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“…It has been demonstrated that LiChrolut-EN has a much stronger retention of volatiles than other commonly used sorbents, such as bond Elut ENV (styrene- divinylbenzene), Amberlite, and Tenax TA [ 20 , 21 ]. Another commonly used technique is solid phase microextraction (SPME), which can extract volatile and semi-volatile organic compounds from environmental, biological, and food samples [ 22 , 23 , 24 ]. There are also a lot of commercially available stationary phases, although the divinylbenenze/carboxen/polydimethylsiloxane (DVB/CAR/PDMS) is the most frequently used on an expanded range of analytes.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Cultivar Differences of Blueberry Wines Using GC-QTOF-MS and Metabolic Profiling Methods

et al. 2018

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A non-targeted volatile metabolomic approach based on the gas chromatography-quadrupole time of fight-mass spectrometry (GC-QTOF-MS) coupled with two different sample extraction techniques (solid phase extraction and solid phase microextraction) was developed. Combined mass spectra of blueberry wine samples, which originated from two different cultivars, were subjected to orthogonal partial least squares-discriminant analysis (OPLS-DA). Principal component analysis (PCA) reveals an excellent separation and OPLS-DA highlight metabolic features responsible for the separation. Metabolic features responsible for the observed separation were tentatively assigned to phenylethyl alcohol, cinnamyl alcohol, benzenepropanol, 3-hydroxy-benzenethanol, methyl eugenol, methyl isoeugenol, (E)-asarone, (Z)-asarone, and terpenes. Several of the selected markers enabled a distinction in secondary metabolism to be drawn between two blueberry cultivars. It highlights the metabolomic approaches to find out the influence of blueberry cultivar on a volatile composition in a complex blueberry wine matrix. The distinction in secondary metabolism indicated a possible O-methyltransferases activity difference among the two cultivars.

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“…Other porous carbons have been selected and developed as novel SPME coatings focusing on the two key factors for the choice of suitable porous carbons: surface area and pore structure. Li et al proposed a C18 composite fiber, prepared with a new method and applied to the analysis of organochlorine pesticides (OCPs) in drinking water samples [119]. The prepared fiber showed excellent thermal stability, solvent resistance and extraction performance more than seven times higher than those of commercial fibers.…”

Section: Drinking Watermentioning

confidence: 99%

Recent Applications and Newly Developed Strategies of Solid-Phase Microextraction in Contaminant Analysis: Through the Environment to Humans

Naccarato

Tagarelli

2019

Separations

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The present review aims to describe the recent and most impactful applications in pollutant analysis using solid-phase microextraction (SPME) technology in environmental, food, and bio-clinical analysis. The covered papers were published in the last 5 years (2014–2019) thus providing the reader with information about the current state-of-the-art and the future potential directions of the research in pollutant monitoring using SPME. To this end, we revised the studies focused on the investigation of persistent organic pollutants (POPs), pesticides, and emerging pollutants (EPs) including personal care products (PPCPs), in different environmental, food, and bio-clinical matrices. We especially emphasized the role that SPME is having in contaminant surveys following the path that goes from the environment to humans passing through the food web. Besides, this review covers the last technological developments encompassing the use of novel extraction coatings (e.g., metal-organic frameworks, covalent organic frameworks, PDMS-overcoated fiber), geometries (e.g., Arrow-SPME, multiple monolithic fiber-SPME), approaches (e.g., vacuum and cold fiber SPME), and on-site devices. The applications of SPME hyphenated with ambient mass spectrometry have also been described.

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Preparation of C18 composite solid-phase microextraction fiber and its application to the determination of organochlorine pesticides in water samples

Cited by 41 publications

References 42 publications

Magnetic metal organic framework for pre-concentration of ampicillin from cow milk samples

Magnetic metal organic framework for pre-concentration of ampicillin from cow milk samples

Characterization of Cultivar Differences of Blueberry Wines Using GC-QTOF-MS and Metabolic Profiling Methods

Recent Applications and Newly Developed Strategies of Solid-Phase Microextraction in Contaminant Analysis: Through the Environment to Humans

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