Methods of analyzing crude oil
US-9733228-B2 · Aug 15, 2017 · US
Methods of analyzing crude oil
US2017343526A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017343526-A1 |
| Application number | US-201715677231-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 15, 2017 |
| Priority date | Jan 31, 2013 |
| Publication date | Nov 30, 2017 |
| Grant date | — |
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Abstract
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The invention generally relates to methods of analyzing crude oil. In certain embodiments, methods of the invention involve obtaining a crude oil sample, and subjecting the crude oil sample to mass spectrometry analysis. In certain embodiments, the method is performed without any sample pre-purification steps.
First claim
Opening claim text (preview).
1 - 10 . (canceled) 11 . A method for quantifying a corrosion inhibitor in crude oil, the method comprising: obtaining a crude oil sample comprising a corrosion inhibitor; subjecting the crude oil sample to mass spectrometry analysis; and quantifying the corrosion inhibitor in the crude oil sample based on results of the mass spectrometry analysis, wherein the method is performed without any sample pre-purification steps. 12 . The method accordingly to claim 11 , wherein the mass spectrometry analysis comprises: introducing the crude oil sample to a porous substrate; applying solvent and voltage to the substrate to generate ions of an analyte in the crude oil sample; and analyzing the ions using a mass spectrometer. 13 . The method according to claim 12 , wherein the mass spectrometer is selected from the group consisting of a bench-top mass spectrometer and a miniature mass spectrometer. 14 . The method according to claim 12 , wherein the porous substrate is paper. 15 . The method according to claim 14 , wherein the paper is filter paper. 16 . The method according to claim 11 , wherein the corrosion inhibitor comprises at least one alkyl ammonium salt. 17 . The method according to claim 16 , wherein the alkyl ammonium salt is selected from the group consisting of tetradodecylammonium bromide, benzylhexadecyldimethylammonium chloride, and a combination thereof. 18 . The method according to claim 12 , wherein the mass spectrometer is coupled with a discontinuous atmospheric pressure interface. 19 . The method according to claim 12 , wherein the solvent comprises a mixture of methanol and acetonitrile. 20 . The method according to claim 11 , wherein the mass spectrometry analysis is performed in an ambient environment.
Assignees
Inventors
Classifications
- G01N33/2823Primary
Raw oil, drilling fluid or polyphasic mixtures · CPC title
Nebulising, aerosol formation or ionisation (spraying or atomising in general B05B) · CPC title
by electric field, e.g. electrospray · CPC title
Ion sources; Ion guns · CPC title
with means for introducing as a spray, a jet or an aerosol (electrospray ion sources H01J49/165) · CPC title
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- What does patent US2017343526A1 cover?
- The invention generally relates to methods of analyzing crude oil. In certain embodiments, methods of the invention involve obtaining a crude oil sample, and subjecting the crude oil sample to mass spectrometry analysis. In certain embodiments, the method is performed without any sample pre-purification steps.
- Who is the assignee on this patent?
- Purdue Research Foundation
- What technology area does this patent fall under?
- Primary CPC classification G01N33/2823. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Nov 30 2017 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).