Liquid Scintillation Cocktails

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  • IN-FLOW 2

    IN-FLOW 2 is a highly efficient scintillator for use with dilute aqueous salt or buffer solutions or polar samples. Best used with mixing ratios of 3:1, which lead to 3H counting efficiencies of 40-45%. IN-FLOW 2 is often less affected by gradient change than other counting solutions and should be evaluated when sharp gradient change is anticipated.

  • IN-FLOW 2:1

    If one of our scintillators can be termed ‘best’, it is IN-FLOW 2:1. Though each may be better for some specific application, none offer the universality of IN-FLOW 2:1. IN-FLOW 2:1 meets the first tests for a flow-through scintillator - fluidity and clarity - far better than any other counting mixture. Suitable for counting 3H-containing aqueous solutions at a 2:1 scintillator:mobile phase ratio, it also is being routinely used for 14C at 1:1.

  • IN-FLOW 3

    When your goal is to reach a high water content and therefore a lower total flow rate for increased counting time, IN-FLOW 3 should be evaluated. IN-FLOW 3 tends to resist gel formation over the entire range from 0% to 33% (2:1). A good scintillator is more than just fluid at a particular composition; it must be fluid at all compositions leading to that chosen mixture for if it stiffens during the mixing process the desired composition may never be reached. IN-FLOW 3 rates particularly well in this regard and is used with lipid-containing acetonitrile, methanol mobile phases, with or without significant water content.

  • IN-FLOW BD

    IN-FLOW BD, our original biodegradable liquid scintillator was formulated for 3H and 14C work with high salt and buffer samples. Though not equal in capacity to IN-FLOW TC, and with slightly lower counting efficiency for 3H, its biodegradability makes it of interest when circumstances force the use of a solution that can be freely disposed of. At 3:1 ratio, IN-FLOW BD can be employed with all concentrations of ammonium phosphate and ammonium formate from 0 to 2 M. It is especially suitable for plasma and for tissue extracts.
    If one of our scintillators can be termed ‘best’, it is IN-FLOW 2:1. Though each may be better for some specific application, none offer the universality of IN-FLOW 2:1. IN-FLOW 2:1 meets the first tests for a flow-through scintillator - fluidity and clarity - far better than any other counting mixture. Suitable for counting 3H-containing aqueous solutions at a 2:1 scintillator:mobile phase ratio, it also is being routinely used for 14C at 1:1.

  • IN-FLOW ES

    IN-FLOW ES was originally developed to answer the need for a scintillator solution to accommodate water/acetonitrile gradients over the range from 100% water to 100% ACN. It has since been found equally suitable for water/MeOH over the same range. It has a high holding capacity for mildly buffered mobile phases. IN-FLOW ES mixes easily and gives clear fluid solutions with sample loads up to 33% (2:1 mixing ratio), but best performance is normally obtained at a 3:1 ratio.

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