4.016838Ammonium dihydrogen phosphatefor HPLC(NH4)H2PO4 M.=115.02 CAS No. 7722-76-1Guarantee analysisAssay (acidimetric) ≥ 98.0 %pH value (10% in H2O, 20°C) 4.0 ~ 5.0Chloride (Cl) ≤ 0.0005 %Nitrate (NO3) ≤ 0.001 %Sulfate (SO4)≤ 0.005 %UV absorption(10% in H2O)λ 210 nm max 0.05λ 220 nm max 0.04λ 240 nm max 0.02λ 500 nm max 0.02suitability for RP gradient test complyingsuitability for filter test complying
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