XIC of -1?

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Christian Trahan

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May 28, 2019, 12:27:07 PM5/28/19
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Hi,

I was wondering what does an XIC of -1 mean? How can it be interpreted? I know about extracte ion chromatogram and areas under the curves, but I an puzzled for the -1 values. 

Thanks!

Christian

Paulo C Carvalho

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May 28, 2019, 12:37:17 PM5/28/19
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Dear Christian,

The -1 means that the tool was unable to obtain the XIC for a certain precursor.  i.e., a failed attempt, which occurs in some rare occasions.   -1 XICs should be disregarded.

Cheers,
Paulo C.

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Paulo Costa Carvalho, PhD
Laboratory for Structural and Computational Proteomics
Carlos Chagas Institute, Fiocruz - PR, Brazil
Journal of Proteomics - Executive Editor

Christian Trahan

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May 28, 2019, 12:41:39 PM5/28/19
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Thanks Paulo,

Quick response and very helpful as usual.

Cheers!

On Tuesday, 28 May 2019 12:37:17 UTC-4, Paulo C Carvalho wrote:
Dear Christian,

The -1 means that the tool was unable to obtain the XIC for a certain precursor.  i.e., a failed attempt, which occurs in some rare occasions.   -1 XICs should be disregarded.

Cheers,
Paulo C.

On Tue, May 28, 2019 at 1:27 PM Christian Trahan <Christi...@ircm.qc.ca> wrote:
Hi,

I was wondering what does an XIC of -1 mean? How can it be interpreted? I know about extracte ion chromatogram and areas under the curves, but I an puzzled for the -1 values. 

Thanks!

Christian

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