Injecting - Amphetamine. Base to Salt.

[Dexyfiend]

SWIM wanted to know if it was possible to synthesise other salts from amphetamine base other than the hydrochloride and sulphate salts? For instance could a salt be produced from concentrated lemon juice or vinegar?
He knows that heroin base is often mixed with lemon juice or vinegar as it is soluble in both these things. SWIM wants to inject his base amphetamine, could he simply dissolve it in lemon juice or vinegar???

Also he wants to ascertain if what he gets IS in fact base amphetamine because where he comes from uncut amphetamine is often referred to as base (it's often cut with glucose by dealers to increase it's volume or by users to make snorting easier) irregardless of whether it actually IS base.
Could this be done with a simple ph test to see if it's basic.

He's pretty sure it is as it is very oily with the consistency of honey and a slightly off white colour. It also has that classic ammonia strong smell. Does this sound right to any SWIY's out there???

Please let SWIM know as soon as possible as he would like to know for this weekend (he apologises for coming across as impatient)

Thanks

Dexyfiend added 2 Minutes and 4 Seconds later...

SWIM also aplogises if he posted this in the wrong section (chemistry possibly???)