Application of Solid-Phase Microextraction in Soil and Sediment Sampling

Jiang, Ruifen; Ouyang, Gangfeng

doi:10.1007/978-3-662-53598-1_6

Cited by 3 publications

(2 citation statements)

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“…According to the theory of SPME, increasing the extraction temperature can enhance the extraction efficiency. However, excessively high extraction temperatures can decrease the distribution coefficient of analytes between the fiber and the sample, potentially leading to matrix reactions [28]. Six different temperatures (70, 80, 90, 100, 110, and 120 • C) were investigated to determine the optimal extraction temperature, conducted using a 50/30 µm DVB/CAR on PDMS fiber, 4 g sample weight, 15 min equilibration time, 45 min extraction time, 280 • C desorption temperature, and 1.5 min desorption time.…”

Section: Single-factor Experimentsmentioning

confidence: 99%

“…To address some of these issues, a method utilizing headspace-solid-phase microextraction coupled with gas chromatography/mass spectrometry (HS-SPME-GC/MS) has recently been developed to identify vanillin in fragrant vegetable oil [11]. However, in a previous study, this method employed a manual SPME holder without precise temperature control and orbital agitation during incubation, leading to potential fluctuation in the analytical results [26][27][28]. Moreover, the SPME optimization process in the recent study did not consider the matrix effect of the real sample, and the methodology validation was not comprehensive [11].…”

Section: Introductionmentioning

confidence: 99%

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Development and Validation of a Stable Isotope Dilution Headspace–SPME–GC/MS Method for the Determination of Vanillin in Fragrant Vegetable Oils

Mei,

Wang,

Zhang

et al. 2023

Molecules

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It has been reported that vanillin has been intentionally added to enhance the taste and flavor of low-quality vegetable oils. Therefore, it is crucial to investigate the accurate concentrations of vanillin in three types of fragrant vegetable oils commonly consumed in China. In this study, a method has been developed for the quantification of vanillin in commercial fragrant vegetable oils using the stable isotope dilution assay (SIDA) and headspace–solid-phase microextraction (HS–SPME) coupled with gas chromatography/mass spectrometry (GC/MS). The limit of detection (LOD) and limit of quantification (LOQ) of the analyte were determined to be 20 µg kg−1 and 50 µg kg−1, respectively. The validation study demonstrated that the recoveries ranged from 89% to 101%, with intra-day and inter-day precision being less than 7.46%. A survey of 80 commercially available fragrant vegetable oils was performed using the present method. Vanillin was found to be widely present in fragrant vegetable oils, with sesame oils showing the highest average content (842.6 µg kg−1), followed by rapeseed oils (262.1 µg kg−1) and peanut oils (115.0 µg kg−1). The results indicate that the proposed method is a simple, accurate, and eco-friendly approach for determining the presences of vanillin in fragrant vegetable oils.

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Section: Single-factor Experimentsmentioning

confidence: 99%