Amines analysis by ion chromatography
US-2018193767-A1 · Jul 12, 2018 · US
Microcrystalline cellulose particle supported sol-gel sorbents
US2022016600A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022016600-A1 |
| Application number | US-202117466249-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 3, 2021 |
| Priority date | Jun 26, 2020 |
| Publication date | Jan 20, 2022 |
| Grant date | — |
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Abstract
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Solid phase extraction (SPE) sorbents and liquid chromatography (LC) stationary phases are provided, as well as methods of fabricating the same. The SPE sorbents and LC stationary phases can use microcrystalline cellulose particles as the substrate and sol-gel sorbent coating technology as the polymer/sorbent immobilization technology. The SPE sorbents and LC stationary phases are stable in a pH range of 1-13 and at a temperature of up to 350 ° C.
First claim
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What is claimed is: 1 . A composition, comprising: a substrate comprising microcrystalline cellulose particles; and a sol-gel sorbent coated on the substrate, the composition being stable in a pH range of 1-13, and the composition being stable at a temperature of 350° C. 2 . The composition according to claim 1 , the sol-gel sorbent being a polymer. 3 . The composition according to claim 1 , the substrate being microcrystalline cellulose. 4 . The composition according to claim 1 , the substrate being chemically pre-treated. 5 . The composition according to claim 1 , the substrate being chemically pre-treated with a base and an acid. 6 . The composition according to claim 5 , the acid being selected from HCl, trifluoroacetic acid, nitric acid, acetic acid, and formic acid. 7 . The composition according to claim 6 , the base being ammonium hydroxide or NaOH. 8 . The composition according to claim 5 , the base being ammonium hydroxide or NaOH. 9 . The composition according to claim 1 , the composition being stable at a temperature greater than 350° C. 10 . The composition according claim 1 , the sol-gel sorbent comprising C18, poly(dimethyldiphenyl), poly(ethylene glycol), polytetrahydrofuran, (p-methyl phenyl) methyldimethoxysilane, 3,4-methylenedioxyphenyltriethoxysilane, hydroxyterminated poly(dimethyl siloxane), or monohydroxyterminated poly(dimethylsiloxane). 11 . The composition according claim 10 , the sol-gel sorbent comprising C18. 12 . The composition according claim 10 , the sol-gel sorbent comprising poly(dimethyldiphenyl). 13 . The composition according claim 10 , the sol-gel sorbent comprising poly(ethylene glycol). 14 . The composition according claim 10 , the sol-gel sorbent comprising polytetrahydrofuran, (p-methyl phenyl) methyldimethoxysilane. 15 . The composition according claim 10 , the sol-gel sorbent comprising 3,4-methylenedioxyphenyltriethoxysilane. 16 . The composition according claim 10 , the sol-gel sorbent comprising hydroxyterminated poly(dimethyl siloxane). 17 . The composition according claim 10 , the sol-gel sorbent comprising monohydroxyterminated poly(dimethylsiloxane). 18 . A composition, comprising: a substrate comprising microcrystalline cellulose particles; and a sol-gel sorbent coated on the substrate, the composition being stable in a pH range of 1-13, the composition being stable at a temperature of 350° C. and a temperature greater than 350° C., the sol-gel sorbent being a polymer, the substrate being microcrystalline cellulose, the substrate being chemically pre-treated with an acid and a base, and the sol-gel sorbent comprising C18, poly(dimethyldiphenyl), poly(ethylene glycol), polytetrahydrofuran, (p-methyl phenyl) methyldimethoxysilane, 3,4-methylenedioxyphenyltriethoxysilane, hydroxyterminated poly(dimethyl siloxane), or monohydroxyterminated poly(dimethylsiloxane). 19 . The composition according to claim 18 , the acid being HCl. 20 . The composition according to claim 19 , the base being NaOH.
Assignees
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Classifications
Gel sorbents · CPC title
Gels · CPC title
Phases chemically bonded to a substrate, e.g. to silica or to polymers · CPC title
Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds · CPC title
Inorganic material layers · CPC title
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- What does patent US2022016600A1 cover?
- Solid phase extraction (SPE) sorbents and liquid chromatography (LC) stationary phases are provided, as well as methods of fabricating the same. The SPE sorbents and LC stationary phases can use microcrystalline cellulose particles as the substrate and sol-gel sorbent coating technology as the polymer/sorbent immobilization technology. The SPE sorbents and LC stationary phases are stable in a p…
- Who is the assignee on this patent?
- Kabir Abuzar, Furton Kenneth G, The Florida International Univ Board Of Trustees
- What technology area does this patent fall under?
- Primary CPC classification B01D15/161. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Jan 20 2022 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).