Intersection · Sourcing × PeptideMeter

Sourcing topics tagged PeptideMeter

Topics in Sourcing carrying the tag PeptideMeter. Independent peptide analytics and vendor verification service.

21 topics

Topic	Participants	Replies	Views	Activity
Chain of custody for a sample you posted yourself PeptideMeter third-party testing Janoshik Analytical blind sampling Chain of custody for a sample you posted yourself Writing it up because I had to work it out twice and would rather nobody else did. I was wrong about chain of custody in a thread last spring and I would like…		2	7.3k	5h
Aggregate verification data across the directory, with caveats Medutest blind sampling PeptideMeter Under review On the subject in the title: Aggregate verification data across the directory, with caveats Working notes rather than a conclusion. I have spent a fortnight trying to pin aggregate verification data down and…	+64	74	4.6k	14h
Chain of custody for a sample you posted yourself — one year on VendorInvestigate Janoshik Analytical blind sampling third-party testing Posting this under the heading it deserves: Chain of custody for a sample you posted yourself — one year on Everything below is what sits behind that. Posting a small dataset on Chain of custody. It is mine,…	+28	32	50k	15h
Submitting a sample: the process end to end blind sampling PeptideMeter VendorInvestigate third-party testing On the subject in the title: Submitting a sample: the process end to end Working notes rather than a conclusion. Submitting a sample keeps being re-asked here and I think that is because the answer is…	+99	114	29k	21h
About the Independent verification category Janoshik Analytical Medutest PeptideMeter Pinned Wiki Janoshik, Medutest, PeptideMeter and VendorInvestigate results, how to submit a sample, and how to read what comes back. This post is a community wiki: any member at trust level 3 or above can edit it, and…	+1	5	5.8k	23h
How Janoshik, Medutest, PeptideMeter and VendorInvestigate differ — does this still hold? PeptideMeter VendorInvestigate third-party testing Janoshik Analytical Asking directly, because I could not find a straight answer: How Janoshik, Medutest, PeptideMeter and VendorInvestigate differ — does this still hold? A question about how a record should be read rather than…	+24	28	8k	1mo
How Janoshik, Medutest, PeptideMeter and VendorInvestigate differ — a second dataset Janoshik Analytical blind sampling PeptideMeter VendorInvestigate Solved How Janoshik, Medutest, PeptideMeter and VendorInvestigate differ — a second dataset I have a specific reason for asking rather than idle curiosity, and the context is below. Posting a small dataset on…	+42	46	46k	2mo
[2026 update] What a purity-only report leaves out PeptideMeter third-party testing Janoshik Analytical The question in the title: What a purity-only report leaves out I will give what I have already checked below so nobody repeats it. Structured report rather than an opinion, following the format the…	+97	103	5.2k	3mo
Turnaround times and what they mean for a decision PeptideMeter Medutest Janoshik Analytical VendorInvestigate Turnaround times and what they mean for a decision Writing it up because I had to work it out twice and would rather nobody else did. A question about turnaround times that I think has a definite answer,…		4	29k	3mo
Second pass at: Submitting a sample: the process end to end Janoshik Analytical PeptideMeter Medutest blind sampling Solved Second pass at: Submitting a sample: the process end to end Writing it up because I had to work it out twice and would rather nobody else did. Posting a small dataset on Submitting a sample. It is mine, it is…	+12	16	41k	4mo
Interpreting a result that disagrees with the supplier's certificate Janoshik Analytical Medutest PeptideMeter third-party testing Interpreting a result that disagrees with the supplier's certificate Writing it up because I had to work it out twice and would rather nobody else did. Structured report rather than an opinion, following the…	+129	153	7.3k	5mo
Publishing an inconvenient result: a case study — the long version Janoshik Analytical PeptideMeter Medutest blind sampling Publishing an inconvenient result: a case study — the long version Writing it up because I had to work it out twice and would rather nobody else did. A narrow question about Publishing an inconvenient result,…	+68	74	12k	7mo
What a purity-only report leaves out Medutest VendorInvestigate third-party testing PeptideMeter Solved What a purity-only report leaves out — that is the question, and I have not found it answered plainly anywhere I have looked. Purity-only: setting out the arithmetic in full, because I have had to do it twice…	+92	105	4k	8mo
What a documentation review can and cannot tell you Medutest VendorInvestigate Janoshik Analytical blind sampling Solved Wiki What a documentation review can and cannot tell you — that is the question, and I have not found it answered plainly anywhere I have looked. Something about documentation review does not reconcile and I would…	+79	83	950	11mo
Splitting a vial for two laboratories: how to do it without ruining both blind sampling PeptideMeter third-party testing Medutest Solved Splitting a vial for two laboratories: how to do it without ruining both — setting out what I have, and where I think it stops being reliable. Something about splitting a vial does not reconcile and I would…	+64	70	4.4k	13mo
How Janoshik, Medutest, PeptideMeter and VendorInvestigate differ blind sampling PeptideMeter Medutest third-party testing How Janoshik, Medutest, PeptideMeter and VendorInvestigate differ I have a specific reason for asking rather than idle curiosity, and the context is below. A question about how a record should be read rather…	+117	130	3.3k	14mo
Revisiting: Aggregate verification data across the directory, with caveats PeptideMeter third-party testing blind sampling Medutest Closed Revisiting: Aggregate verification data across the directory, with caveats — setting out what I have, and where I think it stops being reliable. I have spent a fortnight trying to pin Aggregate verification…	+22	26	23k	17mo
Turnaround times and what they mean for a decision — one year on Medutest PeptideMeter VendorInvestigate third-party testing On the subject in the title: Turnaround times and what they mean for a decision — one year on Working notes rather than a conclusion. Reading back through what has been written here about Turnaround times,…	+25	29	22k	18mo
Choosing which test to pay for, given a fixed budget — does this still hold? PeptideMeter blind sampling Janoshik Analytical VendorInvestigate Choosing which test to pay for, given a fixed budget — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below. A question about how a record should be…	+35	39	755	20mo
Blind submission and why it changes minds Janoshik Analytical VendorInvestigate PeptideMeter Solved Blind submission and why it changes minds — setting out what I have, and where I think it stops being reliable. What changes if the standard account of blind submission is wrong? I ask because I have been…	+91	96	1.1k	21mo
Splitting a vial for two laboratories: how to do it without ruining both — what changed since VendorInvestigate third-party testing Medutest blind sampling Closed Posting this under the heading it deserves: Splitting a vial for two laboratories: how to do it without ruining both — what changed since Everything below is what sits behind that. Something about Splitting a…	+107	115	5.2k	22mo

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