Rapid determination of multiclass fungicides in wine by low-temperature plasma (LTP) ambient ionization mass spectrometry

Beneito‐Cambra, Miriam; Pérez-Ortega, Patricia; Molina‐Díaz, Antonio; García-Reyes, Juan F.

doi:10.1039/c5ay00810g

Cited by 26 publications

(8 citation statements)

References 37 publications

(49 reference statements)

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“…However, we still observed strong ion suppression from the mass spectra for NPS‐spiked blank matrix solution and NPS spiked oral fluid sample while analyzing the oral fluid directly, as shown in Figures S1–S4 ( supporting information). Dilution of the sample has been proved to be an effective means to reduce the matrix effect; therefore, we diluted the oral fluid with methanol at the ratio of 1:1 ( v /v) before depositing it on the substrate.…”

Section: Resultsmentioning

confidence: 99%

Low‐temperature plasma‐probe mass spectrometry based method for determination of new psychoactive substances in oral fluid

Wang

Hua

Yang

et al. 2018

Rapid Comm Mass Spectrometry

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Section: Resultsmentioning

confidence: 99%

Low‐temperature plasma‐probe mass spectrometry based method for determination of new psychoactive substances in oral fluid

Wang

Hua

Yang

et al. 2018

Rapid Comm Mass Spectrometry

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“…With this technology, explosives could be detected very quickly and in low quantities under ambient conditions from any surface [118] and even in mixtures [119]. Other promising applications were the screening of drugs of abuse [120, 121], agrochemicals in foods [122, 123], or fungicides in wine [124].…”

Section: Modern Ambient Ionization – Cold Atmospheric Plasma As Anmentioning

confidence: 99%

Response in Ambient Low Temperature Plasma Ionization Compared to Electrospray and Atmospheric Pressure Chemical Ionization for Mass Spectrometry

Kiontke

Billig

Birkemeyer

2018

International Journal of Analytical Chemistry

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Modern technical evolution made mass spectrometry (MS) an absolute must for analytical chemistry in terms of application range, detection limits and speed. When it comes to mass spectrometric detection, one of the critical steps is to ionize the analyte and bring it into the gas phase. Several ionization techniques were developed for this purpose among which electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) are two of the most frequently applied atmospheric pressure methods to ionize target compounds from liquid matrices or solutions. Moreover, recent efforts in the emerging field of “ambient” MS enable the applicability of newly developed atmospheric pressure techniques to solid matrices, greatly simplifying the analysis of samples with MS and anticipating, to ease the required or even leave out any sample preparation and enable analysis at ambient conditions, outside the instrument itself. These developments greatly extend the range of applications of modern mass spectrometry (MS). Ambient methods comprise many techniques; a particular prominent group is, however, the plasma-based methods. Although ambient MS is a rather new field of research, the interest in further developing the corresponding techniques and enhancing their performance is very strong due to their simplicity and often low cost of manufacturing. A precondition for improving the performance of such ion sources is a profound understanding how ionization works and which parameters determine signal response. Therefore, we review relevant compound characteristics for ionization with the two traditional methods ESI and APCI and compare those with one of the most frequently employed representatives of the plasma-based methods, i.e., low temperature plasma ionization. We present a detailed analysis in which compound characteristics are most beneficial for the response of aromatic nitrogen-containing compounds with these three methods and provide evidence that desorption characteristics appear to have the main common, general impact on signal response. In conclusion, our report provides a very useful resource to the optimization of instrumental conditions with respect to most important requirements of the three ionization techniques and, at the same time, for future developments in the field of ambient ionization.

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“…The analysis of pesticide residues in wine is challenging due to the complexity of the matrix, which contains alcohol, organic acids, sugars and polyphenols (e.g., anthocyanins, flavonols and tannins). Many effective preparation methods of wine samples have been reported, including liquid-liquid extraction (LLE) with different organic solvents [11,[18][19][20], solid-phase extraction (SPE) with reversed-phase C18 or polymeric sorbents [21][22][23][24][25][26][27], solid-phase microextraction (SPME) [22,28,29] and ultrasound-assisted emulsification microextraction (USAEME) [28,30], single drop liquid-liquid microextraction (LLME) [31][32][33][34], membrane-assisted solvent extraction [4] and dispersive liquid-liquid microextraction (DLLME) [35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Utilizing a Rapid Multi-Plug Filtration Cleanup Method for 72 Pesticide Residues in Grape Wines Followed by Detection with Gas Chromatography Tandem Mass Spectrometry

Liu

Bai

Song

et al. 2021

Foods

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A convenient and fast multi-residue method for the efficient identification and quantification of 72 pesticides belonging to different chemical classes in red and white grape wines has been developed. The analysis was based on gas chromatography tandem quadrupole mass spectrometric determination (GC–MS/MS). The optimization strategy involved the selection of the amount of multi-walled carbon nanotubes (MWCNTs) and the number of cleanup procedure cycles for multi-plug filtration cleanup (m-PFC) to achieve ideal recoveries and reduce the sample matrix compounds in the final extracts. The optimized procedure obtained consistent recoveries between 70.2 and 108.8% (70.2 and 108.8% for white wine, and 72.3 and 108.4% for red wine), with relative standard deviations (RSDs) that were generally lower than 9.2% at the three spiking levels of 0.01, 0.05 and 0.1 mg/kg. The linearity was studied in the range between 0.002 and 0.1 mg/kg using pesticide standards prepared both in pure solvent and in the presence of the matrix, showing coefficients of determination (R2) higher than 0.9495 for all the pesticides. To improve accuracy, matrix-matched calibration curves were used for calculating the quantification results. Finally, the method was used successfully for detecting pesticide residues in commercial grape wines.

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Rapid determination of multiclass fungicides in wine by low-temperature plasma (LTP) ambient ionization mass spectrometry

Abstract: LTP-MS/MS is a rapid method for the qualitative and semi-quantitative determination of pesticides in wines.

Cited by 26 publications

References 37 publications

Low‐temperature plasma‐probe mass spectrometry based method for determination of new psychoactive substances in oral fluid

Low‐temperature plasma‐probe mass spectrometry based method for determination of new psychoactive substances in oral fluid

Response in Ambient Low Temperature Plasma Ionization Compared to Electrospray and Atmospheric Pressure Chemical Ionization for Mass Spectrometry

Utilizing a Rapid Multi-Plug Filtration Cleanup Method for 72 Pesticide Residues in Grape Wines Followed by Detection with Gas Chromatography Tandem Mass Spectrometry

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