Tag Archive | "newsletter"

DI Water Wettability

Medical Device Cleaning – Rinsing Silicone O-rings

Q. I would like to know if our rinsing process (Ultrasonic Cleaning with Sterile distilled water for 10 minutes) is appropriate for rinse off. Parts we are cleaning: 150″ Silicone O-Rings.
A. Thanks for your question about the sufficiency of a 10 min. distilled water rinse in ultrasonics for cleaning medical device related silicon o-rings. Distilled water is generally fine for rinsing. The best rinse is …

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Labware Cleaning: Pre-soaking Pipettes

Q. Why is it important to pre-soak pipettes in 1% Alconox or Liquinox before washing in pipette siphon washer with Alcotabs?
A. The most common problem in pipette cleaning is residues that dry on after use and prior to cleaning. This problem is attributed to the failure to pre-soak the pipettes immediately after use. Our technical experts at Alconox recommend placing soiled pipettes in 1% Alconox or Liquinox solution immediately. Learn More.

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tool steel

Cleaning Mild Tool Steel

Q. How to clean mild tool steel tablet press punches and dies?
A. Mild tool steel, sometimes called S7, will flash rush during rinsing, particularly if you rinse with hot water. All the cleaners that have good chelating agents (all but Luminox and Detergent 8) can safely clean tool steel because the chelating agents tie up the iron oxide and do not let it auto-catalytically expand and form rust.

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Aluminum Plate Cleaning

Solujet Inhibited for Cleaning Aluminum

Q. Specifications indicate that “Solujet is inhibited for Aluminum. Corrosion testing is advisable.” What does this mean?

A. Solujet contains sodium metasilicate which acts as a corrosion inhibitor to stop alkaline attack on aluminum. Solujet would not cause alkaline attack on aluminum as long as the bath is not overused and the metasilicate depleted. Learn more.

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Automated Labware Washer Detergent

Q. Liquinox foams too much to use in the labware washer. We test for phosphate, so we need a phosphate free detergent. We need a cleaner that will clean off any testing residual on glass and plastic without leaving any interference.
A. Detergent choice for cleaning labware in an automated laboratory washer depends upon whether you use powered or liquid detergent. Click for details. For powdered detergent, use Tergajet phosphate-free low foaming powdered detergent, catalog number 2204 for the 4 lb box size. For a liquid detergent, use Solujet phosphate free low foaming liquid detergent, catalog number 2101 for the 1 gallon size.

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Cleaning Denatured Proteins

We are looking to clean denatured proteins from our medical device along with baked-on desiccated blood that is not removed completely. Manual scraping removes the residual but is not acceptable. Need a cleaner that will dissolve all bio-matter. Cleaning process is to prepare device for autoclave sterilization.

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Optimum Percent Liquinox

Q. What is the optimum percent liquinox detergent to use?
A. As a general statement, optimum detergency is reached at a 1% concentration (optimum defined as amount of soil removed per unit of detergent used).

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Ceramic (Alumina) cleaning

Q. What cleaner should be used to clean ceramic (alumina) where the ceramic electronic packages that have tungsten, gold, and/or gold/tin metallization? A. 1-2% Alconox detergent in heated ultrasonic followed by a thorough deionized water rinse. Learn More….

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Cleaning Solar Panels with Minimal Water

Q. How to clean installed solar panels using minimum amounts of water.

A. For field cleaning of solar modules I recommend using Liquinox detergent. This is a concentrate that would be used at a 1% solution (1.25 oz/gal, or 10 mL/L). Liquinox is not harmful to discharge onto the ground in an agricultural setting.

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Removing Protein from Cell Culture Containers

Q: What do you recommend for removing protein from cell culture containers?
A. To clean cell culture containers and remove protein, use a freshly made solution of our enzymatic detergent….

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Posted in Biotechnology, Manual Lab Cleaning, Pharmaceutical, TergazymeComments (0)