in response to two recent reports which may have an impact on certain widely used protocols , we have , using the confirmed ion-exchange/fluorometric procedure , systematically evaluated the effects of deproteinization with various concentrations of sulfosalicylic acid ( ssa ) ranging from 0 to 10 % ( 100 mg/ml ) , as well as the effects of freeze/thaw ( f/t ) on csf gaba levels .
C0184661
procedure
C0220825
evaluated