Headspace-single drop microextraction (HS-SDME) in combination with high-performance liquid chromatography (HPLC) to evaluate the content of alkyl- and methoxy-phenolic compounds in biomass smoke

Rincón, Arturo A.; Pino, Verónica; Ayala, Juan H.; Afonso, Ana M.

doi:10.1016/j.talanta.2011.05.046

Cited by 27 publications

(11 citation statements)

References 35 publications

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“…The selected solvent requires to have good viscosity, high boiling point, lower vapor pressure to retain the drop size and shape at higher temperature. The extraction solvent should not interfere with the quantification of acetaldehyde in its hydrazone form and readily miscible with the mobile phase . The solvents DMSO, n ‐butanol, 1,4‐butanediol, ethylene glycol, propylene glycol, 1‐hexanol and 1‐octanol were tested for the chromatographic interference and drop holding capacity for longer time at the experimental temperature.…”

Section: Resultsmentioning

confidence: 99%

“…The new HS‐SDME method involves simultaneous extraction, concentration and in situ derivatization of acetaldehyde with 2,4‐dinitrophenylhydrazine (DNPH), followed by the injection of a microdrop on to a HPLC equipped with diode array detector (DAD) for analysis, further, 1‐nitronaphthalene has been used as an internal standard to ensure good accuracy and precision. The parameters like extraction solvent selection, drop size, extraction time and extraction temperature has been comprehensively studied to optimize the experimental conditions . The new HS‐SDME with in‐drop derivatization method is greener and faster compared to conventional derivatization technique reported in literature for the analysis of acetaldehyde in PET resin by HPLC technique.…”

Section: Introductionmentioning

confidence: 99%

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Headspace single‐drop microextraction with in‐drop derivatization followed by reversed‐phase HPLC analysis to determine residual acetaldehyde in polyethylene terephthalate

Mahesh¹,

Ramesh²,

Mohana³

et al. 2018

Separation Science Plus

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Headspace single‐drop microextraction with in‐drop derivatization coupled with reversed‐phase high‐performance liquid chromatography method has been developed for the determination of trace level acetaldehyde in polyethylene terephthalate pellets. The headspace microextraction step involves simultaneous extraction, concentration and in situ derivatization of acetaldehyde with 2,4‐dinitrophenylhydrazine. Various factors influencing the performance of headspace single‐drop microextraction, such as extraction solvent, drop volume, temperature and time for extraction, were studied and optimized. The calibration curve was found to be linear over the concentration range of 0.14–3.0 ppm with correlation coefficient of >0.999. The limits of detection and quantitation were 0.07 and 0.14 ppm, respectively. The spiking recovery of acetaldehyde was in range of 103.1 to 105.5%. The method shows good repeatability, with a relative standard deviation of 5.6%. The residual acetaldehyde content estimated in the polyethylene terephthalate pellets by headspace single‐drop microextraction was found to be in agreement with the result obtained by standard ASTM F2013 headspace gas chromatography method. The developed headspace single‐drop microextraction is robust, sensitive and easy to implement in any laboratory.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Headspace single‐drop microextraction with in‐drop derivatization followed by reversed‐phase HPLC analysis to determine residual acetaldehyde in polyethylene terephthalate

Mahesh¹,

Ramesh²,

Mohana³

et al. 2018

Separation Science Plus

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show abstract

“…After the extraction, the microdrop is retracted into the microsyringe and injected into instruments for liquid or gas chromatography for analysis [8,10]. This technique has been successfully used in the determination of different classes of substances, such as phenolic compounds [11], sulfur compounds [12], metals [13,14] and amines [15], as well as for the extraction of pesticides [8,[16][17][18][19] in different matrices.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of pesticide multiresidues in white wine and rosé wine by SDME/GC-MS

Anjos

Andrade

2015

Microchemical Journal

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“…It is proved as carcinogenic and capable of promoting tumors by several studies . In the past, several analytical methods have been developed to determine m ‐cresol, including headspace single‐drop microextraction (HS‐SDME) , accelerated solvent extraction with dispersive liquid–liquid microextraction , cloud point extraction , amperometric biosensors , fluorescence spectroscopy coupled with multiple linear regression and successive projection algorithm (MLR–SPA) and partial least square (PLS) techniques , SPME , etc.…”

Section: Introductionmentioning

confidence: 99%

Imprinted silica nanoparticles coated with N -propylsilylmorpholine-4-carboxamide for the determination of m -cresol in synthetic and real samples

et al. 2015

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m-Cresol-imprinted silica nanoparticles coated with N-propylsilylmorpholine-4-carboxamide have been developed that contain specific pockets for the selective uptake of m-cresol. Silica nanoparticles were synthesized by a sol-gel process followed by functionalization of their surface with N-propylsilylmorpholine-4-carboxamide. The formation of m-cresol-imprinted silica nanoparticles was confirmed by UV-Vis spectrophotometry, infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy and transmission electron microscopy. Electron microscopic studies revealed the formation of monodispersed imprinted silica nanoparticles with spherical shape and an average size of 83 nm. The developed nanoparticles were filled in a syringe and used for the extraction of m-cresol from aqueous samples followed by quantification using high-performance liquid chromatography with diode array detection. Various adsorption experiments showed that developed m-cresol-imprinted silica nanoparticles exhibited a high adsorption capacity and selectivity and offered a fast kinetics for rebinding m-cresol. The chromatographic quantification was achieved using mobile phase consisting of acetonitrile/water (70:30 v/v) at an isocratic flow rate of 1.0 mL/min using a reversed-phase C18 column and detection at λmax = 275 nm. The limits of detection and quantification were 1.86 and 22.32 ng/mL, respectively, for the developed method. The percent recoveries ranged from 96.66-103.33% in the spiked samples. This combination of this nanotechnique with molecular imprinting was proved as a reliable, sensitive and selective method for determining the target from synthetic and real samples.

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Headspace-single drop microextraction (HS-SDME) in combination with high-performance liquid chromatography (HPLC) to evaluate the content of alkyl- and methoxy-phenolic compounds in biomass smoke

Cited by 27 publications

References 35 publications

Headspace single‐drop microextraction with in‐drop derivatization followed by reversed‐phase HPLC analysis to determine residual acetaldehyde in polyethylene terephthalate

Headspace single‐drop microextraction with in‐drop derivatization followed by reversed‐phase HPLC analysis to determine residual acetaldehyde in polyethylene terephthalate

Simultaneous determination of pesticide multiresidues in white wine and rosé wine by SDME/GC-MS

Imprinted silica nanoparticles coated with N -propylsilylmorpholine-4-carboxamide for the determination of m -cresol in synthetic and real samples

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