Calibration of analytical instrument
US-2024393301-A1 · Nov 28, 2024 · US
MS/MS type mass spectrometer
US8969797B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8969797-B2 |
| Application number | US-201213662531-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 28, 2012 |
| Priority date | Oct 28, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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The length of a delay time d from a suspension period starting point t1 until the application of a pulse voltage is begun is changed according to the length of the suspension period during which no data is collected at the time of m/z switching. It is thus ensured that the amount of product ions can be reliably restored at a suspension period termination point t2. In addition, the peak value of the pulse voltage is also changed according to the ionic strength immediately before entering the suspension period. The ion removal rate is thus increased when the amount of remaining ions is high, and the amount of remaining ions is reliably brought to zero within the same pulse width. As a result, crosstalk can be completely removed.
First claim
Opening claim text (preview).
What is claimed is: 1. An MS/MS type mass spectrometer equipped with a first mass separating part for selecting ions having a specific mass-to-charge ratio as precursor ions from among various ions, a collision cell for splitting said ions by causing said precursor ions to collide with a prescribed gas, said collision cell having an ion guide for converging and transporting ions with a high-frequency electric field, a second mass separating part for selecting ions having a specific…
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- H01J49/004Primary
Electricity · mapped topic
- H01J49/26Primary
Electricity · mapped topic
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- What does patent US8969797B2 cover?
- The length of a delay time d from a suspension period starting point t1 until the application of a pulse voltage is begun is changed according to the length of the suspension period during which no data is collected at the time of m/z switching. It is thus ensured that the amount of product ions can be reliably restored at a suspension period termination point t2. In addition, the peak value of…
- Who is the assignee on this patent?
- Shimadzu Corp
- What technology area does this patent fall under?
- Primary CPC classification H01J49/004. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 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).