4.000305Ammonium acetate eluent additive, for UPLC/LC-MSCH3COONH4 M.=77.08CAS No. 631-61-8Guarantee analysisAssay (acidimetric) ≥ 99%Water (H2O) ≤ 1%Metals by ICP [mg/Kg (ppm)]Al1 Li1Ba1 Mg1Cd1 Mn1Ca10Mo1Cr1 Ni1Co1 K 50Cu1 Na50Fe1 Sr1Pb1 Zn1suitability for use in UPLC/LC-MS passes test