ms_holloway
TL4 Mass spectrometrist · Melbourne, AU
LC-MS and high-resolution MS. Mass accuracy is a tool, not a verdict. Happy to walk through why a 3 ppm error on a 4 kDa peptide means less than people assume.
Joined 22 May 2024 · last posted 9h · groups: analytical-chemists, wiki-editors, trust-level-4, newcomer-guides
39 of 62 badges earned.
Getting started
Read the GuidelinesRead the community guidelines end to end.Granted 24 May 2024First ReplyReplied to a topic.Granted 25 May 2024WelcomeReceived your first like on a post.Granted 11 Jun 2024First LinkLinked to another topic or document.Granted 12 Jun 2024First QuoteQuoted another member accurately.Granted 17 Jun 2024ReaderRead every post in a topic of more than 100 posts.Granted 18 Jun 2024First TopicCreated your first topic.Granted 19 Jun 2024First TagApplied a tag to your own topic.Granted 23 Jun 2024
Posting
GenerousUsed all of your daily likes.Granted 24 Jun 2024Nice PostReceived 10 likes on a single post.Granted 27 Jun 2024Nice TopicA topic you created received 10 likes on its first post.Granted 27 Jul 2024Consistently GenerousUsed all of your daily likes on five separate days.Granted 29 Sep 2024EditorEdited one of your own posts for accuracy.Granted 4 Oct 2024Thank YouReceived 20 likes after giving 10.Granted 13 Dec 2024Gives BackReceived 100 likes after giving 100.Granted 1 Jan 2025Good TopicA topic you created received 25 likes on its first post.Granted 27 Feb 2025Good PostReceived 25 likes on a single post.Granted 6 Mar 2025Relentlessly GenerousUsed all of your daily likes on twenty separate days.Granted 10 Apr 2025
Community
Documentation
ReviewerReviewed a document draft before promotion.Granted 11 Jul 2024First Wiki EditEdited a community wiki post.Granted 13 Jul 2024Wiki EditorMade 25 wiki edits with revision notes.Granted 10 Sep 2024Plain LanguageRewrote a technical passage so a newcomer could follow it, without losing accuracy.Granted 18 Dec 2024Wiki MaintainerNamed as maintainer of a document in the documentation commons.Granted 31 Dec 2024Citation CheckerVerified 20 citations against their sources.Granted 11 Jan 2025
Analytics
First ChromatogramPosted a chromatogram with its method stated.Granted 6 Aug 2024Reads a COACorrectly interpreted a certificate of analysis in public.Granted 30 Sep 2024Blind SubmitterSubmitted a sample blind and published the result.Granted 15 Nov 2024Submitted a SampleSubmitted a sample for independent testing and published the result.Granted 20 Dec 2024Method FirstAsked for the method before discussing a purity number, ten times.Granted 22 Jan 2025Mass AccuracyCorrectly calculated a mass error in ppm and explained its limits.Granted 25 Jan 2025
Evidence
Trust levels
Basic UserReached trust level 1.Granted 25 May 2024MemberReached trust level 2.Granted 17 Jun 2024RegularReached trust level 3.Granted 1 Sep 2024AnniversaryOne year as an active member.Granted 22 May 2025LeaderReached trust level 4.Granted 28 Jul 2025Two YearsTwo years as an active member.Granted 22 May 2026