Post in A negative ion adduct of 100 Da

> On Apr 29, 2021, at 4:00 PM, Anderson, David Eric (NIH/NIDDK) [E]
<email obscured>> wrote:
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> Which instrument?
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> D. Eric Anderson,    Ph.D
> Advanced Mass Spectrometry Core Facility, NIDDK
> NIH
>
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> Building 8 Room B2A19, 9000 Rockville Pike, Bethesda MD, 20892 USA
> (301)-496-7546
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> ________________________________________
> From: Kym Faull <email obscured>>
> Sent: 29 April 2021 18:17
> To: <email obscured>
> Cc: Johnson,Jodie V; Gazzmend Elezi; Whit Cohn; Adrian Gomez; Thad Vickery;
Savannah Novencido; Alex Yoon; Jaime Bulkacz; Lucy Gao; austin quach; Julian
Whitelegge; Vivian Ly; Brian Kawahara
> Subject: [ABRF Discussion Forum] A negative ion adduct of 100 Da
>
> We are getting a strong and persistent negative ion adduct of 100 Da in
electrospray.  We are working with a small molecule (syringic acid).  Does
anyone have advice as to the nature and possible origin of the adducting agent?
>
> Any and all advice will be appreciated
>
> Kym and Gazi
>
> Kym Francis Faull, Ph.D.
> Director, Pasarow Mass Spectrometry Laboratory
> Jane and Terry Semel Institute for Neuroscience and Human Behavior at UCLA
> Professor Emeritus on Recall, Department of Psychiatry and Biobehavioral
Sciences
> David Geffen School of Medicine at UCLA
> Telephone: (310) 206 7881 (office)
> Telephone: (310) 206 7886 (laboratory)
> Facsimile: (310) 206 2161
> Electronic mail: <email obscured> <email obscured>>
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