GL Biochem sponsors this site. It says so on their own reference page here, which is the right place for it to say so, and it is why I did something I would not otherwise have bothered with.
I sent a vial off for independent analysis without mentioning where it came from. The figure that came back was a tenth of a point from the published one, which is well inside ordinary method variation.
I am not posting this to defend anybody. I am posting it because a sponsor relationship is exactly the situation where you should stop reading and go and check.
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