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The image was uploaded by article creator @Larssahl as "own work", however I see it has been used here before. Can Larssahl please address this and disclose any connections they have to the subject? WP:COI and/or WP:paid editing must be disclosed if they know the subject personally or professionally or have been hired (directly or indirectly) to create this page. JoelleJay (talk) 06:39, 1 June 2024 (UTC)[reply]
Hi JoelleJay,
I used to work for the Department of Chemistry at the University of North Carolina at Chapel Hill. The image was shot by me, post-retirement, and I have given Professor Pielak the rights to use it freely. Should it be more appropriate to use an image which has not been used in any other context, I will be happy to provide that.
@Larssahl, the image should be fine given your confirmation that you took it. You might want to add a bit more about this to the description of the image on Commons in case copyright questions come up again. Regarding your former employment, this does count as a COI that should be declared either on this page or on your userpage (see instructions here), and you're advised in the future not to edit this article directly--you can propose any changes here on the talk page. While you're here, given you have access to the subject and/or are familiar with his work -- do you know if there is a better target than "Pauly reaction" to link from "sulfanilazo"? I only briefly scanned a couple of his paper abstracts and my background is not in chemistry, but my interpretation is these are proteins containing histidines or tyrosines that have been modified through azo coupling with diazotized arsanilic/sulfanilic acid, and the Pauly reaction just incidentally uses the same coupling reaction to detect Y or H in proteins in general. Unfortunately we don't have an article on azo proteins, but if there are any other options I'd be happy to incorporate them into the biography. JoelleJay (talk) 16:51, 3 June 2024 (UTC)[reply]
Would you believe that Professor Pielak did his Ph.D. dissertation on the Pauly reaction? Here's his response to my query:
Lars, my man, I spent six years working with the *&*^ing Pauly reaction. It was the subject of my dissertation. I used it to modify proteins and count tyrosines (Y) and histidines (H) (among other things even more boring).
He sent me two of his papers on this, from which I will attempt to condense an article. He as kindly agreed to proof my effort. Give me some time ;-)
Comment: In-text WP:External links are not appropriate. Either they need to be converted to references (see WP:REFB) if they support information, or removed and a select few may be placed in an "External links" section. microbiologyMarcus [petri dish·growths] 15:53, 14 March 2024 (UTC)