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Second pass at: What "verified" means on our vendor pages, stated narrowly

Sourcing › Vendor reports Janoshik Analytical documentation quality third-party testing batch & lot numbers certificate of analysis disputed

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Solved by vial_slope in post #4

Do not adjust a reported figure. Post what the laboratory said and put your interpretation in a separate sentence.

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j.hartmannTL212 Jul 2025#1

Second pass at: What "verified" means on our vendor pages, stated narrowly — setting out what I have, and where I think it stops being reliable.

A question about how a record should be read rather than about a supplier.

We have results from PeptideMeter and from VendorInvestigate on the same product line, months apart, agreeing closely. My question is what that agreement actually establishes, given that neither saw the other's sample.

I suspect the honest answer is narrower than it feels, and I would like it stated precisely.

54 likes 13mo

NLoughranTL3Regular20 Jul 2025 · edited#2

The arithmetic in the opening post is right; the assumption feeding it is the part to check.

Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable.

I am not the right person to answer the follow-up to this.

14 likes 12mo

v.malinowskiTL226 Jul 2025#3

The cost of a submission is worth stating. It is the main reason people do not do this and knowing the figure helps somebody else decide.

5 likes 12mo

vial_slopeTL3Regular Solution31 Jul 2025#4

Do not adjust a reported figure. Post what the laboratory said and put your interpretation in a separate sentence.

7 likes 12mo

so.mbekiTL25 Aug 2025#5

I had read the opposite somewhere and cannot now find where, which tells me something.

21 likes 12mo

l.aaltonenTL3Regular9 Aug 2025#6

so.mbeki, post #5: I had read the opposite somewhere and cannot now find where, which tells me something. Go to post

Adding the measurement that post #3 says would settle it.

Dosing and purity: a vial that is 99% pure might contain 80% of its label claim if the other mass is water, counter-ion, and excipient. Purity and content are different. Both matter for different reasons.

Worth reading the earlier posts in this thread before acting on mine.

9 likes in reply to #5 12mo

b.adeyemiTL214 Aug 2025#7

I had written a reply contradicting post #3 and deleted it. Here is what survived.

Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable.

That is one dataset and I would not build a rule on it.

2 likes 11mo

IMainwaringTL3Regular18 Aug 2025#8

The cost of a submission is worth stating. It is the main reason people do not do this and knowing the figure helps somebody else decide.

The answer changed when I changed how I was measuring, which was informative.

0 likes 11mo

f.yildizTL222 Aug 2025 · edited#9

IMainwaring, post #8: The cost of a submission is worth stating. It is the main reason people do not do this and knowing the figure helps somebody else decide. The answer changed when I changed how I was measuring, which was informative. Go to post

Everything in post #7 holds. The case it does not cover is the one I have.

Reports of ordinary results are more valuable than reports of remarkable ones, precisely because only the remarkable ones get posted elsewhere.

0 likes in reply to #8 11mo

WendelboeTL2Member26 Aug 2025#10

What "verified" means on our pages: specific lots were independently measured on stated dates by named services and results were consistent with the supplier's documentation. It is not a recommendation and does not extend to untested lots.

28 likes 11mo

KnowltonTL3Regular30 Aug 2025#11

Do not adjust a reported figure. Post what the laboratory said and put your interpretation in a separate sentence.

0 likes 11mo

e.kimaniTL22 Sep 2025#12

1 like 11mo

VThorvaldsenTL3Regular6 Sep 2025#13

Selective submission and selective reporting are the two easiest ways for a result to be shaped, and blinding addresses the first while a commitment to post addresses the second.

Adding the caveat now so it does not have to be extracted later.

6 likes in reply to #8 11mo

i.brobergTL210 Sep 2025#14

Noted, and thank you for writing it out rather than summarising it.

17 likes 11mo

MSaarinenTL3Regular13 Sep 2025#15

Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable.

A weak preference rather than a position.

32 likes 10mo

t.lindqvistTL217 Sep 2025#16

Reports of ordinary results are more valuable than reports of remarkable ones, precisely because only the remarkable ones get posted elsewhere.

That matches what I was told, which is not the same as knowing it.

0 likes 10mo

cannula_notesTL2Member20 Sep 2025#17

e.kimani, post #12: Dosing and purity: a vial that is 99% pure might contain 80% of its label claim if the other mass is water, counter-ion, and excipient. Purity and content are different. Both matter for different reasons. Go to post

This follows post #16 rather than contradicting it.

The cost of a submission is worth stating. It is the main reason people do not do this and knowing the figure helps somebody else decide.

Not the whole picture, but the part of it I can speak to.

3 likes in reply to #12 10mo

e.krastevTL223 Sep 2025#18

cannula_notes, post #17: This follows post #16 rather than contradicting it. The cost of a submission is worth stating. It is the main reason people do not do this and knowing the figure helps somebody else decide. Not the whole picture, but the part of it I can speak to. Go to post

Worth separating two things that post #15 runs together.

Speaking for myself and not for anyone else who has posted here.

11 likes in reply to #17 10mo

e.mikkelsenTL2Member27 Sep 2025#19

Building on post #16 rather than restating it.

Reports of ordinary results are more valuable than reports of remarkable ones, precisely because only the remarkable ones get posted elsewhere.

That is the version I would defend. It is not the version I started with.

24 likes 10mo

e.tammTL230 Sep 2025#20

Post #18 put the caveat in the right place and I want to underline it.

Do not adjust a reported figure. Post what the laboratory said and put your interpretation in a separate sentence.

I have separated what I observed from what I concluded, which does not always happen.

0 likes 10mo

v.bergstromTL23 Oct 2025#21

Everything in post #19 holds. The case it does not cover is the one I have.

Multiple services on one lot: agreement across two independent laboratories is stronger than a high number from one. Our vendor pages deliberately mix services for that reason.

2 likes 10mo

VPoulsenTL3Regular7 Oct 2025#22

Narrowing post #19, because the general version has more than one answer.

Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable.

Nothing above should be read as advice about what anyone else should do.

0 likes 10mo

n.duarteTL210 Oct 2025 · edited#23

Thank you — that answers what I came here to find out.

21 likes 10mo

crossref_checkTL3Wiki editor13 Oct 2025#24

Reports of ordinary results are more valuable than reports of remarkable ones, precisely because only the remarkable ones get posted elsewhere.

9 likes in reply to #12 9mo

g.oyelaranTL216 Oct 2025#25

b.adeyemi, post #7: I had written a reply contradicting post #3 and deleted it. Here is what survived. Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable. That is one dataset and I would not build a rule on it. Go to post

Answering the question post #24 raises rather than the one it answers.

Do not adjust a reported figure. Post what the laboratory said and put your interpretation in a separate sentence.

The conclusion is tentative; the arithmetic underneath it is not.

5 likes in reply to #7 9mo

t.kulkarniTL3Regular19 Oct 2025#26

The step people skip is the one I have spelled out.

0 likes 9mo

b.friskTL222 Oct 2025#27

The cost of a submission is worth stating. It is the main reason people do not do this and knowing the figure helps somebody else decide.

28 likes 9mo

r.jhannsdttirTL3Regular25 Oct 2025#28

Post #27 is the version of this I will quote in future. One addition.

14 likes 9mo

p.ostergaardTL228 Oct 2025#29

b.frisk, post #27: The cost of a submission is worth stating. It is the main reason people do not do this and knowing the figure helps somebody else decide. Go to post

Reports of ordinary results are more valuable than reports of remarkable ones, precisely because only the remarkable ones get posted elsewhere.

Genuinely open to being wrong about this one.

8 likes in reply to #27 9mo

customs_ledgerTL3Regular31 Oct 2025#30

Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable.

2 likes 9mo

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