Optimization of dispersive micro solid-phase extraction for the rapid determination of benzophenone-type ultraviolet absorbers in aqueous samples

Chung, Wu Hsun; Tzing, Shin Hwa; Wang, Ding

doi:10.1016/j.chroma.2015.07.106

Cited by 28 publications

(5 citation statements)

References 28 publications

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“…In‐port derivatization has been rarely used in UVFs determination. [ 49–51 ] On the other hand, it retains some advantages such as short derivatization time and utilization of low amounts of reagents than the other derivatization methods. Several parameters that could affect the in‐port derivatization are injection temperature (A), purge off time (B), and the amount of BSTFA (C).…”

Section: Resultsmentioning

confidence: 99%

Determination of UV Filters in Surface Water by VA‐DLLME‐SFOD Technique Coupled with GC‐MS/MS

Yücel

Ertaş

et al. 2022

CLEAN Soil Air Water

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A simple, rapid, and sensitive method is developed for the determination of UV filters in river waters by applying the vortex-assisted dispersive liquid-liquid microextraction based on solidified floating organic droplet technique followed by the injector port silylation (IPS) in a gas chromatography-tandem mass spectrometry system. Statistical experimental design methods including general factorial design, one factor at a time, and central composite face-centered design are used for optimization purposes. Under optimized conditions, 460 µL of acetone and 30 µL of 2-dodecanone are rapidly injected into a 10 mL water sample with 10% (w/v) NaCl at pH 2.5 and vortexed for 3 min. After centrifugation, 2 µL of the separated organic solvent is subjected to auto-IPS with 1 µL of bis (trimethylsilyl) trifluoroacetamide containing 1% trimethylchlorosilane, at 260 °C for 4.5 min in programmable temperature vaporization mode. As a result of the validation studies, the intra-day and inter-day precision indicated as relative standard deviation are less than 12.4% and 18.8%, respectively. For all UV filters, detection limits are between 1.1 and 5.5 ng L −1 and limit of quantitation values are between 3.1 and 16.6 ng L −1 . Successful recovery of extraction values (77.1%-107.4%) and good enrichment factors (231-350) are obtained.

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Section: Resultsmentioning

confidence: 99%

Determination of UV Filters in Surface Water by VA‐DLLME‐SFOD Technique Coupled with GC‐MS/MS

Yücel

Ertaş

et al. 2022

CLEAN Soil Air Water

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“…A Plackett-Burman design was applied to evaluate the main factors [32,33], and the factors (A-E) considered at low and high levels are listed in Supporting Information Table S2. One dummy variable (G) was introduced to estimate the experiment error occurred in the statistical interpretation.…”

Section: Data Handling and Processingmentioning

confidence: 99%

“…The central composite design and response surface methodology are useful in determining the optimal levels of significant factors in multiobjective optimization [44]. The central composite design suggested that the number of experiments can be expressed by 2 K + 2K + C, where K is the number of factors and C is the number of center points, together with 2 K as the number of corner points and 2K as the number of axial points [33,45]. In our case, K is equal to 2 and C can be set at five levels (−α, −1, 0, 1, α) with α = √ 2, which leads to the required number of experiments 13 as well as the levels for extraction temperature (x 1 : 41, 50, 70, 90, and 98°C) and salt addition (x 2 : 0.59, 1, 2, 3, and 3.41 g), respectively.…”

Section: Central Composite Design For the Optimization Of Significantmentioning

confidence: 99%

Simultaneous determination of haloanisoles and halophenols in water using in situ acylation combined with solid‐phase microextraction with gas chromatography and mass spectrometry

Wang

Pan

Zhang

et al. 2016

J of Separation Science

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In this work, an in situ acylation combined with solid-phase microextraction coupled to gas chromatography and mass spectrometry method has been developed for simultaneously determining haloanisoles (2,4,6-trichloranisole, 2,4,6-tribromoanisole), and their direct precursors (2,4,6-trichlorophenol, 2,4,6-tribromophenol) and indirect precursors (2-chloropenol, 2,4-dichlorophenol, 2-bromophenol, 2,4-dibromophenol) in water. The key parameters for the solid-phase microextraction were determined by using Plackett-Burman screening and optimized by central composite optimization. Under optimal conditions, the eight compounds can be analyzed in a short time (33 min) with a strong linearity ranging from 2 to 200 ng/L (correlation coefficient greater than 0.996), showing good sensitivities with the limit of detection in a range of 0.23-0.91 ng/L and a limit of quantification of 0.77-3.03 ng/L, good repeatability (2.00-9.10%) and interday precision (1.67-11.3%). When environmental water samples were treated, the recoveries of target compounds were 75.5-127.3%, suggesting that the developed method could be applied in probing the origin of haloanisoles and monitoring halophenols and haloanisoles in natural waters at concentration levels of ng/L.

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“…For this purpose, the most common sample preparation techniques are used, such as liquid-liquid extraction (LLE) [16] and solid-phase extraction (SPE) [1,17,18], as well as microextraction techniques such as solid-phase microextraction (SPME) [19][20][21][22], single drop microextraction [23], dispersive liquid-liquid microextraction (DLLME) [6,[24][25][26], stir bar sorptive extraction (SBSE) [27][28][29][30][31], microextraction by packed sorbent (MEPS) [32,33], and stir bar sorptive-dispersive microextraction (SBSDµE) [34]. The dispersive micro solid-phase extraction ((DI)µ-SPE) [35], fabric phase sorptive extraction (FPSE) [36], and pressurized liquid extraction (PLE) [37] are used also.…”

Section: Introductionmentioning

confidence: 99%

Determination of Benzophenones in Water and Cosmetics Samples: A Comparison of Solid-Phase Extraction and Microextraction by Packed Sorbent Methods

Wejnerowska

Narloch

2021

Molecules

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Benzophenones (BPs) are extensively used in a wide variety of cosmetic products and other materials (e.g., textiles or plastics) to avoid damaging effects of UV radiation. In the present work, we compared two extraction methods for the determination of BPs, namely, 2,4-dihydroxybenzophenone (BP-1), 2-hydroxy-4-methoxybenzophenone (BP-3) and 2,2-dihydroxy-4-methoxybenzophenone (BP-8), in water and cosmetics samples. The following extraction methods were used for the research: solid-phase extraction (SPE) and microextraction by packed sorbent (MEPS), whereas analysis was performed by gas chromatography with mass spectrometric detection. A comparison between the methods indicates that the MEPS technique(s) can be reliably used for analysis of BPs (sunscreen residue) in water samples and cosmetic samples with satisfactory results. This microextraction technique is cheap, easy, quick to implement, and consumes small amounts of solvents. On the other hand, the main advantage of the SPE method are low detection limits for the determination of BPs in water samples, i.e., from 0.034 to 0.067 µg L−1, while, for the MEPS method, LODs were at the level of 1.8–3.2 µg L−1. For both methods, the recoveries of BPs were 96–107% and 44–70% for water and cosmetics samples, respectively. The presented methods are suitable for use in cosmetics quality control and environmental pollution assessment.

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Optimization of dispersive micro solid-phase extraction for the rapid determination of benzophenone-type ultraviolet absorbers in aqueous samples

Cited by 28 publications

References 28 publications

Determination of UV Filters in Surface Water by VA‐DLLME‐SFOD Technique Coupled with GC‐MS/MS

Determination of UV Filters in Surface Water by VA‐DLLME‐SFOD Technique Coupled with GC‐MS/MS

Simultaneous determination of haloanisoles and halophenols in water using in situ acylation combined with solid‐phase microextraction with gas chromatography and mass spectrometry

Determination of Benzophenones in Water and Cosmetics Samples: A Comparison of Solid-Phase Extraction and Microextraction by Packed Sorbent Methods

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