TheCompound Journal
Reporting on incretins, compounding & the peptide supply chain
Page 2 of 4 of this archive, newest first.
An in-use period is established by a dedicated study on a specific formulation in a specific container at a specific concentration. Borrowing one from a marketed product is…
The result is unremarkable. What the report omits is not.
A document is only as good as the chain that connects it to the material, and most chains here are two or three links longer than the paperwork admits.
The supplier has not disputed the finding. It has not explained the gap either.
A document is only as good as the chain that connects it to the material, and most chains here are two or three links longer than the paperwork admits.
The report states the gradient, the wavelength and the integration threshold, which is more than most.
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.
The supplier has not disputed the finding. It has not explained the gap either.
The purity figure is the least informative line on a well-constructed certificate and the only line most buyers read.
The report states the gradient, the wavelength and the integration threshold, which is more than most.
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
The purity figure is the least informative line on a well-constructed certificate and the only line most buyers read.
The most useful single addition to any purity determination is a second separation under a different pH or on a different stationary phase, and the second-most useful is a…
Stereochemical inversion changes the molecule, changes its biology, and changes its mass by exactly nothing.
A retest date says that material should be re-examined before use. An expiry date says it should not be used. The trade uses the second word for the first concept.
The result is unremarkable. What the report omits is not.
Column chemistry, particle size and pore diameter determine what the separation is capable of before the gradient is even programmed.
The result is unremarkable. What the report omits is not.
Duplicate submissions under different names test within-laboratory repeatability, which is a different quantity from between-laboratory reproducibility.
The report states the gradient, the wavelength and the integration threshold, which is more than most.