Analüüsitav toode suspendeerida metanoolis ja pärast proovi ettevalmistust määratakse alfa-monoglütserüül-4-aminobensoaat ja etüül-4-aminobensoaat kõrgefektiivse vedelikkromatograafiga ( HPLC).
The suspension of a small amount of material in a large volume of liquid is required for many purposes. To prepare this the material to be suspended should be ground as finely as possible and given an electrical double layer by adsorption of an ionic detergent.
