[Below Spec] 94.1% with a 1.8% single impurity. is that the des-amido
Right, the purity question again, but with numbers this time.
I have 13 data points over 8 weeks. The pattern is consistent enough that I do not think it is chance, and boring enough that nobody is going to screenshot it, which is usually a good sign.
The thing I would flag for anyone new: the effect I am describing showed up at week 50, not week 4. People give up long before the interesting part.
Interested in whether this matches other people's logs or whether I am an outlier.
best — the order this archive was captured in
the vial you ordered versus the vial you received might be different batches
Is that 98.6% area or mass?
multiple batches from QYB show a spread, that is the data
the Medutest and PeptideMeter results differ by 9 points, both inside inter-lab variance
template required: vendor / product / batch / service / method / result
Sceptical. If this were true we would see it reflected in the data and we do not.
testing the vendor claim versus testing your actual vial are two different posts
Yeah, the Janoshik number matching the claim is the actual signal.
Slight fix: the number was 96.2, not 96.8. Decimal point, but a fairly consequential one.
Slight fix: the number was 96.2, not 96.8.
Adding to this: below spec is doing more work than the comment implies.
Slight fix: the number was 96.2, not 96.8.
Yes, exactly this, and it is the bit that took me 37 weeks to accept.
testing the vendor claim versus testing your actual vial are two different posts
Disagree on that part. 98.4% and 98.3% on the same vial is normal.
My Janoshik result matched the vendor COA exactly, which is rare. WXT deserves that note in the directory.
reship and retest is the honest way to handle a low result
reship and retest is the honest way to handle a low result
Yes, exactly this, and it is the bit that took me 38 weeks to accept.
This result fits the template perfectly. Logged.
do not editorialise in the title, put the number in the title and the opinion in the body
Batch number? Date of test?
the VendorInvestigate and PeptideMeter results differ by 2 points, both inside inter-lab variance
- 1Sceptical. If this were true we would see it reflected in the data and we do…14 comments in this branch · started by u/ewan_marchand
- 2the vial you ordered versus the vial you received might be different batches6 comments in this branch · started by u/saskia_mwangi