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Chapter 10
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Maintenance
180
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Orion AquaMate Spectrophotometer User Manual
Thermo Scientific
Solvent Examples
Suggested Cleaning Methods
Organic Hydrocarbons, small molecules, oils
Rinse with organic solvent
Warm water with detergent
Dilute nitric acid (<10%) rinse
Copious water rinse
Organic Alcohol solutions
Rinse with similar alcohol, acetone, or other solvent
Copious water rinse
Organic Acidic solutions
Rinse with organic solvent
Warm water with detergent
Dilute nitric acid (<10%) rinse
Copious water rinse
Organic Hydrocarbons, small molecules, oils
Rinse with organic solvent
Warm water with detergent
Dilute nitric acid (<10%) rinse
Copious water rinse
Important: Keeping the vial clean is very important for long vial life.
•
Never store vials or cuvettes long term in a water or solvent bath between uses. If the
solvent you are using dries, impurities in the water or solvent may be deposited on the
inside of the vial or cuvette, causing permanent damage.
•
Use only lens cleaning tissue/paper or fine soft cloth to wipe optical surfaces. Most paper
products (such as facial tissues, paper towels, etc.) contain wood fibers that can damage
the vial or cuvette material.
•
At the end of the day, ensure that all vials or cuvettes are well cleaned and stored in a
suitable container after drying.
Term
Definition
Dilute acid
Dilute nitric acid (<10%)
Acid
Hydrochloric (5M) acid or nitric acid (5M) (see the Note below)
Solvent rinse
Rinse with the solvent that was originally used to solvate your analyte
Copious water rinse
Use a pure water (deionized, distilled, RO) and rinse at least 10 times
Detergent
Use a neutral pH detergent (Triton X-100), if available, to dilute acid wash; water
rinse to remove residue
Note: Do not use 5M nitric acid on an anti-reflection mirror coated vials or cuvettes.