Thanks for the pointer!  Unfortunately, I am using xcms (1.21.7 under
R 2.11.1/bioconductor 2.6) to read the .mzXML files, which does not
currently support reading .mzML files in the release version - I think
it is possible with a custom development build (http://
metlinwiki.scripps.edu/mediawiki/index.php/EnableMzMLSupport) , but
not (easily) under Windows, which is what I will be using.....

On Jul 12, 7:47 pm, Eric Deutsch <[email protected]> wrote:
> If you convert the RAW files to the *mzML* format using msconvert, then
> the date will be there in the form:
>
>     <run id="OR20100622_uk_06_1825_1a_34_1"
>          defaultInstrumentConfigurationRef="IC1"
>          startTimeStamp="2010-06-23T01:30:33Z"
>          defaultSourceFileRef="RAW1">
>
> Eric
>
> > -----Original Message-----
> > From: [email protected] [mailto:spctools-
> > [email protected]] On Behalf Of trl1
> > Sent: Monday, July 12, 2010 11:21 AM
> > To: spctools-discuss
> > Subject: [spctools-discuss] Re: how to extract acquisition time/date
> > stamp from .mzXML files?
>
> > OK, thanks, it's as much as I assumed.  What about extracting the
> > acquistion time and date from the original thermo .raw files?  The
> > info is in there, but I'm nort sure how to get at it, especially in a
> > script that doesn't require running xcalibur-type report genmeration
> > in xcalibur (where the only option seems to involve generating
> > document reports during sequence reprocessing).
>
> > thnaks
> > Tony
>
> > On Jul 9, 7:09 pm, "[email protected]" <[email protected]>
> > wrote:
> > > Tony,
>
> > > To my knowledge the date stamp for the acquisition is not captured in
> > > mzXML from ReAdW-converted Thermo .RAW files.  In principle the mzXML
> > > <msRun> element start time and end time attributes might hold such
> > > information but AFAIK for ReAdW 4.3.0 these attributes hold relative
> > > start and stop times, typically in seconds.  Not a datestamp.
>
> > > Andrew.
>
> > > On Jul 9, 7:37 am, trl1 <[email protected]> wrote:
>
> > > > Hello,
> > > > I generate .mzXML files from thermo .raw files using ReAdW. Is
> > there
> > > > any tool available to extract a date and time stamp from the .mzXML
> > > > file that indicates when the original .raw file was acquired (not
> > the
> > > > creation date of the .mzXML file)?  Is this information even stored
> > in
> > > > the .mzXML schema?
>
> > > > thanks
> > > > Tony
>
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>

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