HPLC solvent recycling is a unique application since
HPLC solvents are usually mixed with large amounts of water (sometimes as
much as 90% water). The addition of large amounts of water greatly
increases the volume of waste solvent. As a result, costs for
disposal of the used solvent can be much higher than the actual purchase
cost of the original solvent. So the savings from recycling HPLC solvents can be
quite significant.
One approach to HPLC waste reduction is to simply use
the 9600 solvent recycling system to separate the solvent from the bulk
water. Once separated, the water is pure enough to be disposed of down
the drain. This process greatly reduces the volume of material that is
hazardous waste and thus the cost of disposal.
This program can be taken a step further by reusing
the recycled solvents. Recycled HPLC solvents have UV absorbance equal
to or better than the original solvent. This compounds the savings of
solvent recycling by reducing the purchase of new solvents.
The solvent recycling process uses a high efficiency
fractional distillation system to remove the analytes and other
contaminants from the solvent. The process is fully automatic from
start to finish. The operator need only start the solvent recycling
process. It is controlled by microprocessor for safe and reliable
results. The most commonly recycled HPLC solvents are
acetonitrile and methanol. They can be recycled from isocratic and
dynamic HPLC processes.
Click here for more technical details on the 9600
solvent recycling system.
To learn more about HPLC solvent recycling, please contact us.
Application notes, user lists and a
bibliography are
available upon request.
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