separates molecules in a liquid mobile phase using a solid stationary phase, kromatograafia, mille all mõeldakse ainete lahutamise ja nende koguste mõõtmise kromatograafilisi meetodeid, milles ainete segu (eluent) kantakse voo abil läbi liikumatu aine (täidise, solvendi, eluendi)

the concentration of material in air, water, soil or sediment to which test organisms are exposed which is estimated to be lethal to 50 % of the test organisms, aine mürgisisaldus, mis surmab pool katseorganismidest