Method and device for the provision of a sample
US-12366562-B2 · Jul 22, 2025 · US
Method for Detecting Aldehyde and Ketone By Using Thin Layer Chromatography
US2020355656A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020355656-A1 |
| Application number | US-201916761094-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 22, 2019 |
| Priority date | Jun 11, 2018 |
| Publication date | Nov 12, 2020 |
| Grant date | — |
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Abstract
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The present invention relates to a method for simultaneously qualitatively and quantitatively analyzing compounds of aldehydes and/or ketones in a short time by using an optimal TLC plate, a proportion of a developing solvent, a sample amount, etc., and can provide an analysis result equivalent to a conventional analysis result in a shorter time by providing the most optimal conditions when using the TLC method.
First claim
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1 . A method for qualitatively and quantitatively analyzing aldehyde or ketone, comprising: (i) injecting a sample of the aldehyde or the ketone into a cartridge containing 2,4-dinitrophenylhydrazine (2,4-DNPH) to obtain a 2,4-dinitrophenylhydrazone derivative; (ii) extracting the 2,4-dinitrophenylhydrazone derivative obtained during the injecting with a solvent to produce an extract; and (iii) analyzing the extract by TLC, wherein the sample of the aldehyde or the ketone is injected in an amount of 0.3 to 0.7 μL. 2 . The method for qualitatively and quantitatively analyzing aldehyde or ketone according to claim 1 , wherein the sample of aldehyde or ketone comprises at least one selected from of formaldehyde, acetaldehyde, acrolein, acetone, propionaldehyde, butyraldehyde, benzaldehyde, crotonaldehyde, iso-valeraldehyde, n-valeraldehyde, o-tolualdehyde, m-tolualdehyde, p-tolualdehyde, hexaldehyde and 2,5-dimethylbenzaldehyde. 3 . The method for qualitatively and quantitatively analyzing aldehyde or ketone according to claim 1 , wherein the solvent is acetonitrile (AN). 4 . The method for qualitatively and quantitatively analyzing aldehyde or ketone according to claim 1 , wherein the analyzing the extract by TLC is performed using a developing solvent which is a mixed solvent of ethyl acetate (EA) and hexane (Hex) of 1:8 to 1:12. 5 . The method for qualitatively and quantitatively analyzing aldehyde or ketone according to claim 1 , wherein the 2,4-dinitrophenylhydrazone derivative is at least one selected from the group consisting of formaldehyde-2,4-dinitrophenylhydrazone, acetaldehyde-2,4-dinitrophenylhydrazone, acrolein-2,4-dinitrophenylhydrazone, acetone-2,4-dinitrophenylhydrazone, propionaldehyde-2,4-dinitrophenylhydrazone, butyraldehyde-2,4-dinitrophenylhydrazone, benzaldehyde-2,4-dinitrophenylhydrazone, crotonaldehyde-2,4-dinitrophenylhydrazone, methacrolein-2,4-dinitrophenylhydrazone, 2-butanone-2,4-dinitrophenylhydrazone, valeraldehyde-2,4-dinitrophenylhydrazone, m-tolualdehyde-2,4-dinitrophenylhydrazone and hexaldehyde-2,4-dinitrophenylhydrazone.
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- What does patent US2020355656A1 cover?
- The present invention relates to a method for simultaneously qualitatively and quantitatively analyzing compounds of aldehydes and/or ketones in a short time by using an optimal TLC plate, a proportion of a developing solvent, a sample amount, etc., and can provide an analysis result equivalent to a conventional analysis result in a shorter time by providing the most optimal conditions when usi…
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01N30/94. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Nov 12 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).