Orochem’s HPLC grade Methanol is manufactured to the highest specifications to ensure the integrity of your data, maximize sensitivity in your assay and to prolong the life of your equipment. With Orochem’s HPLC Grade Solvents, scientists can expect a consistent, high purity product which is necessary to create reliable Chromatography methods and protocols. Orochem HPLC solvents are lot-to-lot analyzed to meet the high quality specifications for HPLC separations. We control the low levels of peak impurities, residue, water, acidity and alkalinity, the high chemical purity and the UV transmittance; all of which are critical parameters for a successful HPLC application.

Specifications for Methanol

Product Specification Limits Typical Lot Analysis
GC-ECD 5ppt max 1.3 ppt
UV Absorbance
400 nm-254 nm 0.01 max 0.009
225 nm 0.15 max 0.14
UV cut-off, nm 205 max 204 nm
Assay (by GC, corrected for water) 99.8 % min 99.99 %
Fluorescence Trace Impurities
At 450nm emission 0.3 ppb max 0.03 ppb
At emission maximum for impurities 1 ppb max 0.2 ppb
Water max 0.05 % 0.008 %
Residue After Evaporation 1 ppm 0.1 ppm
Solubility in water To pass test Pass
Acetone 0.001 % Pass
Titrable Acid max 0.0003meq/g 0.0002 meq/g
Titrable Base max 0.0001 meq/g 0.00005 meq/g
Gradient Analysis @ 254 nm 0.002 max 0.001
Identification ( IR/GC) To conform Pass
Filtered to 0.2 um max Per lot Pass


Catalog Description
339ORO/HPLC Methanol HPLC grade (4ltr/bottle)

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