Your Google Fu is impressive but your copy and paste "equation" taken directly from a
student's question on
chemicalforums.com has exposed a glaring weakness: You know absolutely nothing about the mathematics used to calculate concentrations and are searching frantically for something, anything, with which you can use to discredit HPLCs that have not been favorable to generic GH.
The question is why. The most obvious answer would be that you have a vested interest in generic GH sales. Your posts on the availability of legit generics have been very favorable and an anomaly among bodybuilders who have been involved with the online community as long as you.
It's also possible that you are just skeptical and are genuinely looking for answers. But that seems unlikely given your recent comments about another member's skepticism:
Whatever your motives, you are unlikely to find the answers you seek by searching Google for beginner's chemistry discussions in an effort to play gotcha. Understanding HPLCs is complex and difficult for the layman who doesn't have a teacher to turn to for help, but that is what you need.
Regarding your confusion, there is enough information in the HPLC for a chemist to determine how the concentration was determined. Ask one to explain it to you.