Genuinely asking, not trying to start anything.
Support at Lumen Research Supply was actually pretty decent when I had a problem, which surprised me given what I’d read.
Lumen Research Supply came up in another thread and I realised I had no idea whether my experience with them was normal or not.
Worth noting there’s an Index Score of 89 for them published, which is more than I expected honestly.
Happy to be told I’m wrong, genuinely.
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Still not convinced but I take the point.
Quantitative amino acid analysis is what actually verifies content. Weighing the lyophilised powder does not, because you are also weighing residual salts and moisture.
Correct, and the same applies to the quantity assay.
Batch-to-batch variation is the thing people underestimate. A passing result certifies one lot, not a product line, and vendors know most buyers do not make that distinction.
PR protocol_nils ·
If your solution went cloudy after reconstitution that is usually either the diluent or the temperature it was stored at. Worth posting what you used.