Liquid crystal compound having difluoromethyleneoxy, liquid crystal composition and liquid crystal display device
US-2015376502-A1 · Dec 31, 2015 · US
Tuned synthetic dendrimer calibrants for mass spectrometry
US10347476B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10347476-B2 |
| Application number | US-201314402474-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 21, 2013 |
| Priority date | May 21, 2012 |
| Publication date | Jul 9, 2019 |
| Grant date | Jul 9, 2019 |
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- Title
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Abstract
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Provided are synthetic dendrimer calibrants for mass spectrometry. The calibrants are distinguished by their relative ease and rapidity of synthesis, comparatively low cost, long shelf life, high purity, and amenability to batch synthesis as mixtures. The latter characteristic enables parallel preparation of higher molecular weight compounds displaying useful distributions of discrete molecular weights, thereby providing multi-point mass spectrometry calibration standards. Methods of making, tuning and using said calibrants are provided.
First claim
Opening claim text (preview).
What is claimed is: 1. A composition comprising: a first dendrimer comprising a first core molecule, wherein said first core molecule is selected from the group consisting of: a molecule comprising between 1 and 8 alcohol functionalities, a molecule comprising between 1 and 8 amine functionalities, and a molecule comprising at least one amine functionality and at least one alcohol functionality; wherein the combined number of amine and alcohol functionalities of said first core molecule is at least 2 but no greater than 8; and wherein said first core molecule comprises three iodine atoms; and a second dendrimer comprising a second core molecule, wherein said second core molecule comprises a subsequent generation dendrimer of said first core molecule. 2. The composition of claim 1 wherein said first core molecule comprises 2,4,6-triiodolphenol.
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Classifications
Dendritic macromolecules · CPC title
- C07D319/06Primary
not condensed with other rings · CPC title
in which the condensed system contains four or more hetero rings · CPC title
Mass spectrometers {(mass spectrometers per se H01J49/00)} · CPC title
Combinations of spectrometers, tandem spectrometers, e.g. MS/MS, MSn · CPC title
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- What does patent US10347476B2 cover?
- Provided are synthetic dendrimer calibrants for mass spectrometry. The calibrants are distinguished by their relative ease and rapidity of synthesis, comparatively low cost, long shelf life, high purity, and amenability to batch synthesis as mixtures. The latter characteristic enables parallel preparation of higher molecular weight compounds displaying useful distributions of discrete molecular…
- Who is the assignee on this patent?
- The Administrators Of The Tulane Educational Fund
- What technology area does this patent fall under?
- Primary CPC classification C07D319/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 09 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).