Dr. Jim
I will go at this from another angle,
we have seen several, and based on the results posted, I wont even call them generic but rather bio similar HGH samples compared to the standard.
Will we see How a Pharma sample compares to the standard?
How close will the Pharma grade sample have to be to the standard to still be allow for use and sale as HGH by the FDA?
What would you xpect would b acceptable?
also I tried the science xchange route several times. no luck thus far.
this is there response to me from a few days ago......
Dear Buck,
My name is JR and I am a Customer Success Manager at Science Exchange. I am writing to follow-up on your request forAmino Acid Analysisservice that you've submitted to one of our service providers,Proteomics and Mass Spectrometry Facility.
Science Exchange is an online marketplace where scientists can outsource research services to our network of expert service providers. These research services typically encompasses scientific research in the pre-clinical and clinical pipeline.
The request that you have submitted presents several legal complications and Science Exchange is unable to support your project at this time. We cannot support and facilitate requests for services that are intended for personal use, therefore your request for quotation has been deleted from our platform.
If you would like to pursue this request, please provide me with the following information and our team can reassess the request:
Please let me know if you have any questions.
- Please provide me with your work affiliated email (not a Hotmail, Gmail, or Yahoo email address).
- What is the intended use of the data or product? If it will be used for basic scientific research, please provide me with references to your past publications.
Best regards,
JR
Buck,
I'm on the same page as you, just trying to learn more about the testing methods, process, etc
When I had some GH samples tested in the past, I had asked for "amount present" in each sample vial
After questioning the results (amount seemed off to me) the lab suggested HPLC
I was told fluorimetric assay was done previously (Not as accurate as HPLC)
This was done In order to do HPLC :
- A pure sample was purchased from Sigma Aldrich
- Sigma Cat. no. S0947000 - somatropin reference standard
- Link:
- Somatropin European Pharmacopoeia (EP) Reference Standard | Sigma-Aldrich
- Determine quantity present in grams via HPLC-MS response of intact protein relative to calibration curve of Sigma somatropin standard Cat. no. S0947000 (C1053). Includes determination of intact mass of provided sample.
- HPLC-MS of known quantity Sigma Cat. no. S0947000 - somatropin reference standard to generate 5-point calibration curve
Just sharing some of my testing info
Not sure how other testing is done using 'Humatrope' as a reference standard
Or how AAS samples are tested (what standard is being used)
I have used a Toxicology Laboratory (LC-MS/MS) - AAS Samples
I don't think the testing is done the same (pure sample - external standard)
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