Re: [Psidev-ms-dev] RFC: Collision cell exit potential in CV ?

[Steffen N. <sne...@ip...>]

Hi,

can we add this to the agenda of the next call ?

Yours,
Steffen

On Wed, 2011-12-21 at 10:21 +0100, Steffen Neumann wrote:
> Hi,
> 
> we're generating some examples of TraML files from methods
> that were developed on a QTrap 3200.
> 
> One of the parameters is the "CXP, Collision Cell Exit Potential".
> We couldn't find a corresponding CV term for that.
> 
> Question: Did we miss anything ? Should one be created ?
> 
> I have almost no experience with Traps, but I could imagine
> this should be a child of MS:1000510 (precursor activation attribute).
> Does the following make sense:
> 
> 	[Term]
> 	id: MS:1000876
> 	name: Collision cell exit potential
> 	def: "Potential difference between Q2 and Q3 in a triple quadrupole instrument in volts." [PSI:MS]	
> 	xref: value-type:xsd\:float "The allowed value-type for this CV term."
> 	is_a: MS:1000510 ! precursor activation attribute
> 	relationship: has_units UO:0000218 ! volt
> 	synonym: "CXP" EXACT []
> 
> Is this restricted to triple quads / linear ion traps ? 
> Or is there something equivalent for QqTOF ? Then the def:
> above should be modified "between Q2 and the following instrument compartment..."
> 
> There is an issue in the tracker for skyline:
> https://brendanx-uw1.gs.washington.edu/labkey/issues/home/issues/details.view?issueId=122
> 
> Yours,
> Steffen
> 
> 
> 

-- 
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