2020
DOI: 10.21577/0103-5053.20190199
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Thermal Infrared Enthalpimetry in Paper Microzone Plates for Green and High Throughput Determination of Wine Acidities

Abstract: The use of paper devices in chemical analysis has been increased due to their low cost, high surface area, portability, and biodegradability. A novel use of paper devices is proposed using thermal infrared enthalpimetry (TIE) for a rapid, green, and high throughput determination of wine acidities. The determination of total, fixed, and volatile acidities in red, white, and sparkling wine was carried out, and the results were compared with AOAC titration method. A multichannel pipette was used for reagent addit… Show more

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Cited by 3 publications
(2 citation statements)
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“…The solutions were homogenized under magnetic stirring, and the difference in temperature was related to the limiting reagent (the analyte). This proposed method, called thermal infrared enthalpimetry (TIE), has been successfully used for the analysis of food and drugs in a high throughput and also greener way. In general, polymeric microplates are used, but recently, some improvements were proposed to reduce the volume of solutions as the reaction in paper microzone plates. , However, the proposed setup used for TIE presented some limitations for field analyses (e.g., the need for stirring) and several parameters (e.g., the total volume of solutions, pipette dispensing rate, and stirring speed) should be adjusted to reach suitable measurements …”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…The solutions were homogenized under magnetic stirring, and the difference in temperature was related to the limiting reagent (the analyte). This proposed method, called thermal infrared enthalpimetry (TIE), has been successfully used for the analysis of food and drugs in a high throughput and also greener way. In general, polymeric microplates are used, but recently, some improvements were proposed to reduce the volume of solutions as the reaction in paper microzone plates. , However, the proposed setup used for TIE presented some limitations for field analyses (e.g., the need for stirring) and several parameters (e.g., the total volume of solutions, pipette dispensing rate, and stirring speed) should be adjusted to reach suitable measurements …”
Section: Introductionmentioning
confidence: 99%
“…11−15 In general, polymeric microplates are used, but recently, some improvements were proposed to reduce the volume of solutions as the reaction in paper microzone plates. 16,17 However, the proposed setup used for TIE presented some limitations for field analyses (e.g., the need for stirring) and several parameters (e.g., the total volume of solutions, pipette dispensing rate, and stirring speed) should be adjusted to reach suitable measurements. 12 In the proposed work, a novel approach is proposed to perform enthalpimetric analysis directly in the pipette tips and make TIE even more portable and straightforward for analysis.…”
Section: ■ Introductionmentioning
confidence: 99%