O le 8-425 Screw Cap ma le Septa mo le 8mm Vial e ofoina atu le fesoʻotaʻiga ma le tele o talosaga suʻesuʻe. E masani ona fa'aogaina i metotia fa'a-chromatography, e pei ole High-Performance Liquid Chromatography (HPLC). O nei pulou sikulima e fetaui lelei mo suʻesuʻega masani ma suʻesuʻega talosaga, faʻamautinoaina faʻatuatuaina ma toe faʻaleleia iuga.