Магазин
packed 2.5L
Product No 8402 Methanol 'BAKER HPLC ANALYZED' (Ultra) Gradient Grade
|
Test |
Specification |
Actual value |
|
Assay (by GC) (corrected for water) |
min. 99.8 % |
100.0 % |
|
Acetone |
max. 0.001 % |
< 0.001 % |
|
Residue after Evaporation (in ppm) |
max. 2 |
< 2 |
|
Titrable Acid (meq/g) |
max. 0.0003 |
< 0.0003 |
|
Titrable Base (meq/g) |
max. 0.0001 |
< 0.0001 |
|
Water (H2O) |
max. 0.02 % |
0.018 % |
|
Fluorescence Trace Impurities (as quinine base), ppb: |
|
|
|
Measured at Emission Maximum for Solvent Impurities |
max. 1.0 |
< 1.0 |
|
Measured at 450 nm |
max. 0.3 |
< 0.3 |
|
Gradient Elution Test Ultraviolet Absorbance (a.u.): |
|
|
|
at 235 nm |
max. 0.005 |
< 0.005 |
|
at 254 nm |
max. 0.001 |
< 0.001 |
|
Ultraviolet Absorbance (1.00-cm path vs water): |
|
|
|
at 225 nm |
max. 0.20 |
0.10 |
|
at 254 nm |
max. 0.02 |
0.01 |
|
at 280 nm |
max. 0.01 |
< 0.01 |
|
at 350 nm |
max. 0.01 |
< 0.01 |
|
UV Cut-off, nm |
max. 206 |
202 |