Tag Archive | "newsletter"

Tergazyme

Tergazyme Solution Shelf Life

Q. Do you have any suggestions about the shelf life of 1% Tergazyme solution?

A. Tergazyme solutions should be used within 8 hours of dissolving the powdered Tergazyme detergent in water. As dry powder, Tergazyme has excellent stability with a shelf life of 2 years from date of manufacture.

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Medical Device Cleaning and Biocompatibility Data

Q. What types of biocompatibility data does Alconox Inc. provide for detergents commonly used in medical device cleaning validation?
A. Setting residue acceptance limits as part of your medical device cleaning validation is much easier when appropriate biocompatibility data is available about the critical cleaning detergent you are using. To help assess the biological effects of cleaner residues, Alconox Inc. conducted extensive evaluations of biocompatibility of its Liquinox and Citranox detergents.

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How to Clean Labware: Automated 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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Removing Fish Oil Residues

Q. We would like to have neutral foaming cleaning agent to clean FISH OIL and GELATIN residue. We will also need a validatable method to test residue.
A. I recommend you evaluate Liquinox detergent. Liquinox is a neutral pH range, high foaming concentrated cleaner.

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Detergent for Household Dishwasher

Q. I am currently looking for a cleaner to use in our new dish washer. Could you recommend a detergent for us to use? This is a normal portable dish washer that is typically used in the home. We would like to make sure that residue is not left behind on our glassware after washing.

A. Thanks for your question about a detergent for use in a portable home dish washer with a deionized water hook up. I recommend that you use Alcojet detergent, and that you add some Citrajet to the rinse aid compartment.

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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 ‚ÄúSolujet 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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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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