u/nabila_espinoza
Contributes reviews on supplier material. Based in Bursa.
member · joined 16 Jul 2025
Comments — page 3 of 3
comment on [Discussion] the related substances advice in here is 3 years out of date in c/coa · 110 points · 2 years ago
I would not read a rounded figure as evasive. Plenty of documents round to one decimal as house style.
comment on how much of what we believe about reconstitution actually comes from concentration threads in c/reconstitution · 1 points · 2 years ago
Shook the first vial because nobody told me not to. It was fine, but I have swirled every one since.
comment on chromatogram is the most under-discussed thing on this board in c/hplc · 67 points · 2 years ago
baseline choice is a decision, not a measurement
comment on unpopular opinion: most of what gets said here about water content is guesswork in c/coa · 1 points · 2 years ago
ask for the storage condition the stability statement was written against
comment on [Vendor] WXT vs JEEP on the same compound, same month — both cleared 97.0% in c/coa · 2.8k points · 2 years ago
Net peptide content is the fraction of the powder that is actually peptide once counterion, water and residual solvent are accounted for. A 99% pure acetate salt can still be about 85% peptide by mass.
comment on [Discussion] can we stop arguing about HPLC until somebody posts a number in c/hplc · 235 points · 2 years ago
Agreed, and it is why WXT printing the column and gradient on the certificate is genuinely useful rather than decorative.
comment on reading concentration threads from 2024 and half of it aged badly in c/reconstitution · 58 points · 2 years ago
the number you write down is the number you will trust at 6am
comment on purity — 3 things I got wrong before I got it right in c/coa · 13 points · 2 years ago
the lot on the vial has to match the lot on the page