High-performance polyethylene glycol-coated solid-phase microextraction fibers using sol–gel technology

Wang, Zhenyu; Xiao, Chuhua; Wu, Caiying; Han, Hwataik

doi:10.1016/s0021-9673(00)00692-0

Cited by 122 publications

(53 citation statements)

References 16 publications

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“…The difference of the above results on sage and chamomile also emphasized the importance of the role that the matrix can play on the life of the fibre [6,7]. This effect is also evident when the results from the standard solution analysed every ten samples of chamomile are processed by LRA.…”

Section: Influence Of the Number Of Samplings On Fibre Recovery Effecmentioning

confidence: 97%

“…To the best of the authors' knowledge few studies have been published on this topic. Wang et al [6] compared the life-time of an home-made sol-gel coated polyethylene-glycol (PEG) fibre with that of four commercial fibres (i.e. PDMS 100, PDMS 30, polyacrylate 85, and CW-DVB 65) applied to the analysis of standard mixtures of aromatic hydrocarbons, phenols and pesticides and found a life-time of above 150 samplings compared to 50-100 for those commercially available.…”

Section: Introductionmentioning

confidence: 99%

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Reliability of fibres in solid-phase microextraction for routine analysis of the headspace of aromatic and medicinal plants

Bicchi

Cordero

Liberto

et al. 2007

Journal of Chromatography A

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This article evaluates the HS-SPME recovery repeatability, intermediate precision and their performance over time when applied to HS-SPME sampling for quality control of medicinal and aromatic plants. Experiments were carried out on two sets of fibres coated with two different coatings and belonging to different lots (i.e 100 m polydimethylsyloxane (PDMS) and Carboxen/divinylbenzene/PDMS 50/30 m, l: 1 cm (CAR/DVB/PDMS)) and on chamomile (Matricaria chamomilla L.), sage (Salvia lavandulifolia Vahl.) and a standard solution containing 3-hexanol, isoamyl acetate, 1,8-cineole and menthol in diisobutyl phthalate. The performance of each set of fibres was evaluated by determining a group of complementary statistical parameters including: (i) repeatability of the absolute areas of each marker from each matrix with each fibre; (ii) intra-fibre repeatability of the total absolute areas of the markers of each matrix obtained with each fibre of each set; (iii) inter-fibre intermediate precision of the total absolute areas of the markers of each matrix obtained with all fibres of each set; and (iv) analysis of variance by one-way ANOVA with Fisher and Tukey tests. The influence of the number of analyses on fibre effectiveness (fibre life-time) was studied by linear regression analysis (LRA). The results proved that HS-SPME can successfully be used for routine control analysis of aromatic ad medicinal plants since both types of fibres showed good repeatability and intermediate precision of analytes recovery and consistency over time. Unlike data previously reported by other authors, CAR/DVB/PDMS coated fibres gave better results than those coated with PDMS. The fibre-life seemed mainly to be influenced by the number and conditions of samplings and nature of the matrix investigated.

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Section: Influence Of the Number Of Samplings On Fibre Recovery Effecmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Reliability of fibres in solid-phase microextraction for routine analysis of the headspace of aromatic and medicinal plants

Bicchi

Cordero

Liberto

et al. 2007

Journal of Chromatography A

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“…By using the sol-gel technique, they bonded polyethylene glycols to the backbone of PDMS and successfully extracted benzene derivatives, phenols compounds, phthalate esters, polycyclic aromatic hydrocarbons, and organochloride pesticides by the coating. The results of the experiment proved that this new coating, with polar groups, can extract a number of polar and nonpolar analytes (7). The group of Zeng (8) prepared a polymethylphenylvinylsiloxane coating, which showed better extraction capacity than the commercial extraction fibers in the application of extracting benzene derivatives and polycyclic aromatic hydrocarbons.…”

Section: Coatings Based On Organosiloxane Materialsmentioning

confidence: 97%

Progress of Solid‐Phase Microextraction Coatings and Coating Techniques

et al. 2006

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(SPME) has been popular as an environmentally friendly sample pretreatment technique to extract a very wide range of analytes. This is partly owing to the development of SPME coatings. One of the key factors affecting the extraction performances, such as the sensitivity, selectivity, and reproducibility, is the properties of the coatings on SPME fibers. This paper classifies the materials used as SPME coatings and introduces some common preparation techniques of SPME coating in detail, such as sol-gel technique, electrochemical polymerization technique, particle direct pasting technique, restricted access matrix SPME technique, and molecularly imprinted SPME technique. IntroductionSolid-phase microextraction (SPME) is a sample preparation technique developed by Pawliszyn et al. (1,2). The process of SPME includes two major operation steps: extraction and desorption. Because both extraction and desorption take place on the coatings, the properties of the coatings determine the performance of SPME. Based on this fact, the development of new coatings has been in great demand for a long time. In recent years, the quantity of papers discussing new coatings for SPME has increased rapidly. In this paper, many of the present coatings are classified, and the common preparation techniques are described in detail. Discussion The classifying of coatingsIn the book Applications of Solid-Phase Microextraction, Górecki (3) sorted the coatings from Supelco (Bellefonte, PA) into two different categories: high-viscosity liquid coatings and solid coatings. He also described the extraction mechanism for both kinds of coatings, respectively. For liquid coatings, the extraction of analytes is obtained by the absorption, in which the analytes can transfer from the surface of coatings to the inside. This kind of coating includes the common stationary phases polydimethylsiloxane (PDMS) and polyacrylate (PA). For solid coatings, the extraction of analytes is based on adsorption, in which the analytes may only stay on the surface of the coatings. Some composite coatings such as PDMS-divinylbenzene (DVB), carbowax-DVB, carbowax-templete resin, etc. from Supelco are solid coatings with porous surfaces. They can only extract analytes by adsorption. During the extraction process, the mechanism of adsorption is much more complex than absorption.With the development of the SPME technique, more and more new materials are utilized in the preparation of coatings. More than half of currently available coatings are solid coatings. However, they are divided by the properties of the materials; the solid coatings are multifarious. Based on organic and inorganic types, there are two primary kinds of coatings: organic and inorganic. Organic coatingOrganic polymer materials are the first kind of material used as SPME coatings. Because traditional SPME fibers utilize fusedsilica fiber as solid-phase carriers, compared with inorganic materials, organic polymer materials are easier to affix with fiber. In addition, at high temperature, the thermal coefficien...

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“…15 The common polymeric coating materials of SPME and SPDE are PDMS, PDMS/activated carbon, PDMS/OV 225, PDMS/phenyl-methylpolysiloxane, poly(ethylene glycol) (PEG) and PDMS, 7% phenyl, 7% cyanopropyl. 16 In general, polar coating materials are used for polar analytes and nonpolar coatings for non-polar analytes as with conventional GC stationary phases. For a long time, PEG has been used as a polar stationary phase of GC column.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of In-needle Microextraction Device Using Nichrome Wire Coated with Poly(ethylene glycol) and Poly(dimethylsiloxane) for Determination of Volatile Compounds in Lavender Oils

Lee¹,

Lee

2014

Bulletin of the Korean Chemical Society

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A new needle-based device for headspace wire coated in-needle microextraction (HS-WC-INME) was fabricated using a nichrome wire coated with poly(ethylene glycol) (PEG) and poly(dimethylsiloxane) (PDMS) mixture. The proposed needle device was applied for the determination of volatile compounds in lavender and lavandin essential oils by gas chromatography. Fundamental parameters such as needle design, conditions of extraction and desorption were optimized along with the validation of the extraction and desorption efficiency. The optimal conditions were 30 min extraction at 50 o C and 2 min desorption at 240 o C. The calibration curves showed good linearity with the suitable values of the coefficients of determination (r 2 ) greater than 0.99. The limits of detection for linalyl acetate, -caryophyllene, linalool and (+)-limonene were 7.15, 9.04, 10.79 and 22.26 ng, respectively. Analytical recoveries were acceptable in the test samples, varying from 86.7% to 108.0%. The values of relative standard deviations for run to run showed range less than 0.9% while 3.9% through 7.2% for needle to needle. The proposed PEG-PDMS coating could be more suitable than PDMS coating to extract particular polar groups such as alcohols.

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High-performance polyethylene glycol-coated solid-phase microextraction fibers using sol–gel technology

Cited by 122 publications

References 16 publications

Reliability of fibres in solid-phase microextraction for routine analysis of the headspace of aromatic and medicinal plants

Reliability of fibres in solid-phase microextraction for routine analysis of the headspace of aromatic and medicinal plants

Progress of Solid‐Phase Microextraction Coatings and Coating Techniques

Fabrication of In-needle Microextraction Device Using Nichrome Wire Coated with Poly(ethylene glycol) and Poly(dimethylsiloxane) for Determination of Volatile Compounds in Lavender Oils

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