Methanol

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 SpecificationLimitsTypical Lot Analysis
GC-ECD5ppt max1.3 ppt
UV Absorbance
400 nm-254 nm0.01 max0.009
225 nm0.15 max0.14
UV cut-off, nm205 max204 nm
Assay (by GC, corrected for water)99.8 % min99.99 %
Fluorescence Trace Impurities
At 450nm emission0.3 ppb max0.03 ppb
At emission maximum for impurities1 ppb max0.2 ppb
Water max0.05 %0.008 %
Residue After Evaporation1 ppm0.1 ppm
Solubility in waterTo pass testPass
Acetone0.001 %Pass
Titrable Acid max0.0003meq/g0.0002 meq/g
Titrable Base max0.0001 meq/g0.00005 meq/g
Gradient Analysis @ 254 nm0.002 max0.001
Identification ( IR/GC)To conformPass
Filtered to 0.2 um maxPer lotPass

Specifications

CatalogDescription
339ORO/HPLCMethanol HPLC grade (4ltr/bottle)

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