Nicotine testing question

I did think at first that you were kiddin’ but i have grown to know u too well

I was thinking more toward the portable one

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Lmao @worm1

I made on offer on both and cunningly changed the comma to a decimal point. :crazy_face:

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They have free shipping thats a bonus

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Your abit of a handy man @woftam just make one here is how to.
https://www.chromatographytoday.com/news/gc-mdgc/32/breaking_news/can_i_build_my_own_gas_chromatography_instrument/31910

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