r.marsden
TL3 Regular · Granada, ES
Laboratory background. Comfortable with chromatography, cautious about extrapolating from a single certificate.
Joined 11 November 2024 · last posted 1d · groups: analytical-chemists
32 of 62 badges earned.
Getting started
First ReplyReplied to a topic.Granted 12 Nov 2024Read the GuidelinesRead the community guidelines end to end.Granted 13 Nov 2024First LinkLinked to another topic or document.Granted 19 Nov 2024WelcomeReceived your first like on a post.Granted 23 Nov 2024First QuoteQuoted another member accurately.Granted 1 Dec 2024First TopicCreated your first topic.Granted 4 Dec 2024ReaderRead every post in a topic of more than 100 posts.Granted 8 Dec 2024First TagApplied a tag to your own topic.Granted 26 Dec 2024
Posting
GenerousUsed all of your daily likes.Granted 10 Dec 2024Nice PostReceived 10 likes on a single post.Granted 19 Feb 2025Consistently GenerousUsed all of your daily likes on five separate days.Granted 13 Mar 2025Nice TopicA topic you created received 10 likes on its first post.Granted 24 Mar 2025EditorEdited one of your own posts for accuracy.Granted 26 Mar 2025Good TopicA topic you created received 25 likes on its first post.Granted 2 Jul 2025Good PostReceived 25 likes on a single post.Granted 11 Jul 2025Thank YouReceived 20 likes after giving 10.Granted 29 Aug 2025Gives BackReceived 100 likes after giving 100.Granted 4 Jan 2026Relentlessly GenerousUsed all of your daily likes on twenty separate days.Granted 8 Feb 2026
Documentation
Analytics
First ChromatogramPosted a chromatogram with its method stated.Granted 22 Jan 2025Submitted a SampleSubmitted a sample for independent testing and published the result.Granted 18 Feb 2025Reads a COACorrectly interpreted a certificate of analysis in public.Granted 22 Mar 2025Mass AccuracyCorrectly calculated a mass error in ppm and explained its limits.Granted 2 Jun 2025Method FirstAsked for the method before discussing a purity number, ten times.Granted 31 Aug 2025