Apa ultrapura LC-MS grade, flacon x 2,5 litri, conductivitate specifica (imediat dupa preparare) max. 1 us/cm, aluminiu max. 10 ppb, calciu max. 100 ppb, fier max. 5 ppb, potasiu max. 10 ppb, magneziu max. 20 ppb, sodiu max 200 ppb, fluorescenta (ca chinina) la 254 nm , max. 1 ppb, si la 365 nm, max. 0,5 ppb, absortia la 210 nm, max. 20 mAU, cloruri max. 10 ppb, nitrati max. 10 ppb, fosfati max. 10 ppb, sulfati max. 10 ppb,...
Apa ultrapura LC-MS grade, flacon x 2,5 litri, conductivitate specifica (imediat dupa preparare) max. 1 us/cm, aluminiu max. 10 ppb, calciu max. 100 ppb, fier max. 5 ppb, potasiu max. 10 ppb, magneziu max. 20 ppb, sodiu max 200 ppb, fluorescenta (ca chinina) la 254 nm , max. 1 ppb, si la 365 nm, max. 0,5 ppb, absortia la 210 nm, max. 20 mAU, cloruri max. 10 ppb, nitrati max. 10 ppb, fosfati max. 10 ppb, sulfati max. 10 ppb, filtrare pe membrana de 0,22 um, test specific LC/MS corespunzator