Re: [Psidev-ms-dev] Unique scan numbers

[Matthew C. <mat...@va...>]

Hi Josh,

What design are you planning for the "native scan reference" in mzXML? 
It seems the same issues I just posted about in response to Darren will 
apply to the mzXML design as well.

-Matt


Joshua Tasman wrote:
> Hi Fredrik,
>
> Catching up: massWolf simply renumbers all scans starting with "1" in the mzXML output.  Like I said in a different post, we'll be adding a "native scan reference" to mzXML for each vendor software type.
>
> Josh
>
>
> Fredrik Levander wrote:
>   
>> Hi All,
>>
>> In QTOF files from Waters with mixed MS1 and MS2 data we have several 
>> parallel 'functions' with data being recorded into separate files. The 
>> scan numbers are only unique within each function. In the raw data 
>> folder we thus have several different spectra with the same scan number 
>> (but different source files). When converting this into an mzML file it 
>> would be good to keep the original scan numbers which are useful for 
>> traceability, but to generate unique spectrum ids. I thus propose that 
>> the requirement for unique scanNumbers within an mzML file is removed. 
>> However, spectra should not be repeated within the file, so this would 
>> NOT be applicable to the dta to mzML conversion use case.
>> Would such a change generate problems for the readers?
>> How is this solved in MassWolf?
>>
>>
>> Regards
>>
>> Fredrik
>>
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