[scientizscht (OP)]

Hello

I need pure glucose so that I create myself various concentration glucose solutions for calibration purposes of a glucose meter.

Can anyone point me to a pure glucose product that I can use for that purpose? I need few grams of it.

Thanks!

[Bored chemist]

This sort of thing would probably do the job.
The trace of vitamin C shouldn't make much difference.
You can always recrystallise it if you need a better purity
https://www.boots.com/boots-glucose-c-454g-10034983