Methanol absolute

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Methanol absolute HPLC Supra-gradient 4 L

Test Specification Result
Clear colorless liquid Complying Complying
Color ( APHA Pt – Co ) < = 5 5
Assay ( GC on anhydrous basis ) > = 99.98 % 99.99%
Residue after evaporation < = 0.0001 % w / w 0.0001 % w / w
Water ( KF ) < = 0.03 % w / w 0.01 % w / w
Acidity ( as Acetic acid ) < = 0.002 % 0.00%
Alkalinity ( as Ammonia ) < = 0.0001 % 0.00%
UHPLC / MS ESI / APCI + ( as Reserpine ) < = 6 ppb < 5 ppb
UHPLC / MS ESI / APCI- ( as Reserpine ) < = 20 ppb 20 ppb
H.Peak by PDAD 220-400nm < = 0.004 AU 0.001 AU
Grad . elution H.Peak at 220nm < = 0.004 AU 0.001 AU
Grad . elution drift at 220nm < = 0.05 AU 0.03 AU
Grad . elution H.Peak at 235nm < = 0.002 AU 0.001 AU
Grad . elution drift at 235nm < = 0.015 AU 0.012 AU
Fluorescence 254nm ( as Quinine ) < = 0.5 ppb < 0.3 ppb
Fluorescence 365nm ( as Quinine ) < = 0.3 ppb < 0.3 ppb
UV Trans . 210nm > = 40 % 40%
UV Trans . 220nm > = 65 % 66%
UV Trans . 230nm > = 80 % 82%
UV Trans . 260nm > = 98 % 99%
Silver ( Ag ) < = 50 ppb < 50 ppb
Aluminum ( Al ) < = 20 ppb < 20 ppb
Test Specification Result
Manganese (Mn ) <=20ppb 20ppb
Molybdenum (Mo ) <=50ppb 50ppb
Sodium (Na ) <=50ppb <50ppb
Nickel (Ni ) <=20ppb 20ppb <
Lead (Pb ) <=20ppb 20ppb
Tin (Sn ) <=50ppb 50ppb A
Strontium (Sr ) <=50ppb 50ppb V
Zinc (Zn ) <=50ppb 50ppb <
Filtered through 0.1um,filled under inert gas .