Simultaneous Quantification of Ethanol and Propylene Glycol in Nonbeverage Alcohol Products Using Gas Chromatography Flame Ionization Detection

Rollman, Christopher M.; Sanderoff, Rachel K.; Bezabeh, Dawit Z.

doi:10.1007/s10337-020-03981-1

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…The collection reported here shows the percentage of disinfectants that use methanol in their formulation. The detection of ethanol in the sample is determined by comparing its retention time with the absolute ethanol of analytical grade [16]. A five-point calibration curve was derived for all alcohols listed in Table 1, achieving r 2 > 0.9993 with RSD ≤ 2.5%.…”

Section: Resultsmentioning

confidence: 99%

Study of some alcohol amounts in commercial alcoholic disinfectant solutions using gas chromatography with flame ionization detection

2022

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A simple solvent extraction method was used to analyze alcohol-based hand rubs (ABHRs) using gas chromatography with a flame ionization detector. 79 samples including 68 liquid and 11-gelled ABHRs were analyzed in the Food and Drug Laboratories Research Center of Mashhad, Iran. 17 samples had methanol, 50 samples had the correct percentage of alcohol (60-80%), and 12 samples had the incorrect percentage of alcohol (<60%). The RSD% of methanol, ethanol, and isopropanol were as 2.28, 2.18, and 1.52, respectively. The relative recoveries for methanol, ethanol, and isopropanol were 102.5, 97.8, and 114, respectively. All experiments were repeated three times. The limit of detection and the limit of quantification for methanol, ethanol, and isopropanol were obtained as 0.22, 0.24, 0.10 (%) and 0.71, 0.82, 0.68 (%), respectively.

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Section: Resultsmentioning

confidence: 99%

Study of some alcohol amounts in commercial alcoholic disinfectant solutions using gas chromatography with flame ionization detection

2022

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“…Efficient detection of ethanol concentration, especially below 20% and full concentration, is one of the keys to improving the efficiency of wine production . Although FT-IR spectroscopy, , liquid chromatography, and gas chromatography have been used to detect ethanol concentration, the requirements of high-tech equipment and long detection time limit their practicality and convenience. Portable rapid colorimetric detection of ethanol concentration is the inevitable trend of development. − Structure color is generated by the micro- and nanostructures on the surface of materials .…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Colorimetric Double Inverse Opal Photonic Crystal Indicators for Ethanol Concentration Sensing in Fermentation Engineering

Yuan,

Qi,

Niu

et al. 2024

Langmuir

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Photonic crystal-based ethanol concentration indicators with rapid response and brilliant structural color output definitely take a place in colorimetric sensors. Here, based on the H-bond-regulated swelling of acrylate shape memory polymers (SMPs) and the solvent-induced structural color change of the double inverse opal photonic crystals (DIOPCs), new-type photonic crystals (PCs) colorimetric indicators were constructed, exhibiting a span of maximum reflection wavelength (λmax) up to ∼166 nm in response to alcohols with concentrations from 0 to 100 vol %. DIOPC indicators (DIOPCIs) show a rapid response to alcohols (<1.5 s) and output different structural colors (covering from blue to red). The colorimetric sensing mechanism includes the solvent-triggered recovery of the inverse opal skeleton, the cosolvency effect and H-bonds induced swelling/shrinkage of the polymer, the phase separation between polystyrene (PS) microsphere and polymer skeleton, and the light diffraction of DIOPCs. While ensuring a larger λmax span by regulating the H-bond interactions in polymer chains through acrylamide (AAm), AAm-modified DIOPCIs are sensitive to some specific ethanol concentrations. The real-time sensing of ethanol concentration during fermentation verified the practicability of DIOPCIs, thus establishing a visual model between structural color and corresponding fermentation kinetics. We envisage that the DIOPCIs will contribute to the intelligentization of the alcoholic fermentation and distillation industry.

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A Static Headspace GC–MS Method for the Determination of Ethanol in Solid or Semi-solid Consumer Goods

Sours¹,

Bezabeh²

2021

Food Anal. Methods

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Simultaneous Quantification of Ethanol and Propylene Glycol in Nonbeverage Alcohol Products Using Gas Chromatography Flame Ionization Detection

Cited by 6 publications

References 9 publications

Study of some alcohol amounts in commercial alcoholic disinfectant solutions using gas chromatography with flame ionization detection

Study of some alcohol amounts in commercial alcoholic disinfectant solutions using gas chromatography with flame ionization detection

Bioinspired Colorimetric Double Inverse Opal Photonic Crystal Indicators for Ethanol Concentration Sensing in Fermentation Engineering

A Static Headspace GC–MS Method for the Determination of Ethanol in Solid or Semi-solid Consumer Goods

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