Missing retention time when importing msp file to build SL

Missing retention time when importing msp file to build SL laura corveleyn  2021-04-08


First of all I would like to thank the entire team for the features that were added in the last Skyline daily update!

I still encounter some problems when importing an msp file to build a spectral library. Although the retention times are stated in the headers of the msp, they are not included in the SL. One of my colleagues, Bart Van Puyvelde, submitted a request on this a while ago and it turned out Skyline wasn't able to read the retention time in the header. Would it be possible to fix this?

You can find an example of an msp file I am using in the attachment.

Many thanks!

Kind regards,

Laura Corveleyn

Brian Pratt responded:  2021-04-08

Hi Laura,

MSP is one of those "standards" that isn't really standard - you'll notice that the RT is encoded as part of a free form comment line, anything could be in there.

But we read lots of interesting things out of MSP comments, that's just a new way of encoding RT we haven't encountered before. Easily remedied, look for it in the next Skyline-Daily.

Thanks for using the Skyline support board!

Brian Pratt

Brian Pratt responded:  2021-04-08

For a quick fix, try using a text editor to replace "RTINSECONDS" with "RetentionTime", and it should load just fine.