Independent analysis puts a BCH mazdutide lot at 96.0%, against 93.7% on the certificate
A reminder that a purity figure is the output of a method, and that methods differ.
Roshan Devakumar
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Archive — page 2
227 piecesWhy summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Independent analysis puts a GGPeps cagrilintide lot at 99.2%, against 95.1% on the certificate
A reminder that a purity figure is the output of a method, and that methods differ.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
The degradation product that elutes underneath the parent peak
The sequence predicts the failure mode. A methionine predicts oxidation; an asparagine followed by a glycine predicts deamidation; a cysteine predicts disulphide scrambling.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Medutest result on a Wuhan dulaglutide lot lands 0.7 points below the supplier’s figure
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Low endotoxin recovery: the interference nobody looks for
We submitted vials for endotoxin determination and report the results, the method and the laboratory, because a pyrogen figure without a method is as empty as a purity…
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
The badge is about a sample. The listing is about a product.
A badge asserts that something was tested. It does not assert what, when, on whose sample, by what method, or whether the lot on sale is the lot that was tested.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Adsorption, and the dose that stayed on the glass
At low concentrations a measurable fraction of peptide can adsorb to glass and plastic surfaces, and the loss is largest exactly where it is least expected.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
VendorInvestigate result on a Zhuhai retatrutide lot lands 1.8 points below the supplier’s figure
A reminder that a purity figure is the output of a method, and that methods differ.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.