GABA phantom recipe

This is an edited repost from 2012 on the old blog.

It seems that there is some value a standardized GABA phantom for cross-platform testing etc... This recipe is also a reasonable place to start if you want a 'will-work-without-much-thought' option.  Everything is available form Sigma Aldrich.

  • Container: 1 liter Nalgene bottle style 2125
  • Buffer: One PBS sachet P5368
  • GABA: 1.03 g (RMM 103.1) A2129 

Edits from the original, also add:

  • Sodium Azide NaN3: 1g  (to prevent bug growth) S2002
  • Glycine: 0.751g (internal reference) 50046

Make up to 1 liter with deionized water.  pH can be adjusted to 7.3 using NaOH/HCl (but to a first approximation does not need to be).