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Automated microextraction technique for the analysis of N-nitrosamines in water
US9212979B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9212979-B2 |
| Application number | US-201414155429-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 15, 2014 |
| Priority date | Jan 15, 2014 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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Abstract
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An automated headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry for the determination of four N-nitrosamines in groundwater samples is developed. Response surface methodology technique was employed to investigate the optimized extraction conditions of headspace solid-phase microextraction using CombiPAL autosampler. The method was applied to determine the N-nitrosamine concentrations in groundwater samples.
First claim
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The invention claimed is: 1. An automated headspace solid-phase microextraction gas chromatography-mass spectrometry method for determining nitrosamine concentration, comprising: mixing a nitrosamine-containing aqueous sample that has not been pretreated with one or more salts in a vial comprising an SPME fiber at a headspace portion above the unfiltered nitrosamine-containing aqueous sample in the vial; extracting a nitrosamine-containing analyte from the nitrosamine-containing…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9212979B2 cover?
- An automated headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry for the determination of four N-nitrosamines in groundwater samples is developed. Response surface methodology technique was employed to investigate the optimized extraction conditions of headspace solid-phase microextraction using CombiPAL autosampler. The method was applied to determine the N-…
- Who is the assignee on this patent?
- Univ King Fahd Pet & Minerals, King Abdulaziz City Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification G01N1/405. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 15 2015 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).