Reduced-Pressure Fiber-in-Needle Sampling of Aldehydes for Room Temperature Assessment of Edible Oils’ Oxidative Stability

Ghiasvand, Alireza; Behfar, M.; Yazdankhah, Fatemeh

doi:10.1007/s10337-019-03752-7

Cited by 4 publications

(4 citation statements)

References 29 publications

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“…To further indicate the supremacy of the proposed microextraction strategy, its significant features were compared with some of the similar reported microextraction methods. 22,[33][34][35][36] As can be seen in Table 2, the proposed procedure shows wider linear ranges and acceptable RSDs, compared to most of the listed procedures. Additionally, the LODs are lower than most of the reported methods, even compared to the method that used a MS detector.…”

Section: Comparison Of the Proposed Methods With Similar Reported Pro...mentioning

confidence: 87%

“…36 However, its LODs and LDRs are not comparable with the reduced-pressure fiber-in-needle method (RP-FIN) technique, which has used a low-pressure dynamic microextraction strategy. 22 Anyhow, the proposed method uses a low-cost and durable fiber and instrumentation (GC-FID), without any derivatization methods.…”

Section: Comparison Of the Proposed Methods With Similar Reported Pro...mentioning

confidence: 99%

“…This fact can be explained by the formation of more aldehydes by raising the sample temperature (due to increased lipid oxidation), as substantiated in previous investigations. 22 Therefore, it was better to select a temperature from the most stable part of the graph (Fig. 3a), with minimal fluctuations of response with temperature change.…”

Section: 1 Effect Of Sampling Temperaturementioning

confidence: 99%

“…The efficiency of PPy composites (e.g., polypyrrole/graphene oxide) for the extraction of aldehydes in edible oil has been previously demonstrated through a reduced-pressure fiber-in-needle technique. 22 In this research, amino-silica nanospheres (ASNS) were synthesized and composited with PPy during its in-situ electropolymerization on the surface of a stainless-steel fiber. The ASNS/PPy coated fiber was applied for the HS-SPME sampling of aldehydes (hexanal and heptanal) in edible oils.…”

Section: Introductionmentioning

confidence: 99%

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In-Situ Intercalating of Silica Nanospheres into Polypyrrole During Its Electropolymerization to Prepare a Sorbent for Headspace Microextraction of Aldehydes in Edible Oils

Hamdi

Dalvand²,

Ghiasvand³

et al. 2022

ACSi

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The quality of edible oils is significantly affected by autoxidation of lipids, which alters their flavor and nutritional quality through production of toxic materials like aldehydes (an important class of oil deterioration markers). Herein, an amino-silica nanospheres/polypyrrole (ASNS/PPy) nanocomposite sorbent was synthesized and used as the fiber coating for headspace solid-phase microextraction (HS-SPME) of aldehydes in edible oils, followed by gas chromatography (GC) separation and determination. Amino-silica nanoparticles were prepared by an amended Stöber method and composited with polypyrrole during its electropolymerization on the surface of a platinized stainless-steel fiber. The synergy between in-situ electropolymerization and rough surface of the platinized metal substrate created a durable fiber coating with unique uniformity, cohesiveness, and adsorption properties. The synthesized nanocomposite was characterized using Fourier transform infrared spectroscopy and scanning electron microscopy techniques. The performance of the prepared fiber was optimized by investigating the affecting variables including extraction temperature and time, stirring rate, and desorption conditions. The obtained limits of detection for hexanal and heptanal in sunflower oil were 0.005-0.009 μg mL-1. The prepared fiber exhibited excellent repeatability and reproducibility with the intra-fiber and inter-fiber relative standard deviations in the ranges of 3.9–8.8% and 7.3–15.1%, respectively. The proposed HS-SPME-GC strategy was successfully applied for the analysis of aldehydes in commercial edible oil samples.

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Section: Comparison Of the Proposed Methods With Similar Reported Pro...mentioning

confidence: 87%

Section: Comparison Of the Proposed Methods With Similar Reported Pro...mentioning

confidence: 99%

Section: 1 Effect Of Sampling Temperaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

In-Situ Intercalating of Silica Nanospheres into Polypyrrole During Its Electropolymerization to Prepare a Sorbent for Headspace Microextraction of Aldehydes in Edible Oils

Hamdi

Dalvand²,

Ghiasvand³

et al. 2022

ACSi

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show abstract

Heating-, Cooling- and Vacuum-Assisted Solid-Phase Microextraction (HCV-SPME) for Efficient Sampling of Environmental Pollutants in Complex Matrices

2020

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Fabrication and evaluation of a portable low-pressure headspace solid-phase microextraction device for on-site analysis

Derikvand

Ghiasvand

Dalvand

et al. 2021

Microchemical Journal

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Reduced-Pressure Fiber-in-Needle Sampling of Aldehydes for Room Temperature Assessment of Edible Oils’ Oxidative Stability

Cited by 4 publications

References 29 publications

In-Situ Intercalating of Silica Nanospheres into Polypyrrole During Its Electropolymerization to Prepare a Sorbent for Headspace Microextraction of Aldehydes in Edible Oils

In-Situ Intercalating of Silica Nanospheres into Polypyrrole During Its Electropolymerization to Prepare a Sorbent for Headspace Microextraction of Aldehydes in Edible Oils

Heating-, Cooling- and Vacuum-Assisted Solid-Phase Microextraction (HCV-SPME) for Efficient Sampling of Environmental Pollutants in Complex Matrices

Fabrication and evaluation of a portable low-pressure headspace solid-phase microextraction device for on-site analysis

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