Archive | Laboratory

Filtering Detergent in Industrial Ultrasonic Cleaning System

Q: Is there a benefit to filtering the rinse water or the detergent solution in an ultrasonic system? Is it even advisable? If so, can you recommend a filter size (10 micron) when using Alconox detergent? This is for a new bath setup in a new piece of equipment. 

A: My short answer would be, it cannot hurt but would likely be of limited assistance.

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Posted in Ask Alconox, Filter, Manual Lab Cleaning, Metalworking & Precision Manufacturing0 Comments

Laboratory Cleaning: Dishwasher Leaving Residue

Q. We have been using your Detojet detergent in our lab dishwasher all year long. However, recently, we have been having issues with our dishware not getting clean. Have there been any changes made to the Detojet formula? Any ideas why this is occurring? A. Detojet® Low Foaming Liquid Detergent has not had any formation or formulation changes, so we can remove that out of the equation in solving for the source of your new problem. There are, however, many other aspects to consider….

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Posted in Detojet, Laboratory0 Comments

Water Spots on Stainless? Improve Blowing Process

Q. White spots appear on our stainless steel parts the day after cleaning with Alconox. Right after we clean them, they are dry and visually clean. So, is this next-day residue from the Alconox detergent? If not, can you tell us why this is happening? A. It is fairly unlikely that visually clean parts have Alconox residues suddenly appearing the next day.  In addition to Alconox being free rinsing, any residue that did not get rinsed for whatever reason, would be visible fairly immediately.

Most people in similar situations, even though the parts appear “dry and visually clean,” find that the spots are from water.

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Posted in Alconox, Biotechnology, Foodservice, Healthcare, Laboratory, Manual Lab Cleaning, Medical Device, Metalworking & Precision Manufacturing, Pharmaceutical0 Comments

Soaking in Alcotabs solution

Q: We understand from your literature, that pre-soaking in a solution prior to washing is a good idea.  We are washing pipettes in a syphon washer using your Alcotabs.  Can we create an Alcotabs solution for the pre-soak?  A 1%?  How many tablets? A: Thanks for the inquiry.  Often times, a minor re-purpose of an […]

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Posted in Alcotabs, Laboratory, Manual Lab Cleaning0 Comments

How Does Tergazyme Enzyme Detergent Work?

Q:  You recently sent a sample of Tergazyme detergent for a tough cleaning challenge and it worked better than anything we had previously tried. I realize this must be due to the enzyme component. What information can you provide me on how enzyme detergents work, so I can share it with our decision makers / executives who want to better understand why this detergent got such different results?

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Posted in Biotechnology, Foodservice, Healthcare, Laboratory, Manual Lab Cleaning, Medical Device, Pharmaceutical, Tattoo, Tergazyme0 Comments

Lab Glassware

Labware Cleaning: Solujet Leaving Ring

Q. It appears that the Solujet is leaving a ring on some of the labware that cannot be removed. What is this ring (sodium silicate?)? How do we remove it? The labware has not been completely submerged. We have just added the Solujet soak for some labware that may have stubborn organics. We have been giving the labware a 4 hour soak in 1% Solujet, followed by warm tap water rinse then wash with Liquinox followed by 3x DI rinse.

Click for the Answer.

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Posted in Laboratory, Liquinox, Manual Lab Cleaning, Solujet0 Comments

Lab Glassware

Cleaning Glassware with Adhesives and APIs

Q. We have glassware that contains adhesive and API dissolved in organic solvents. If we do not do additional organic rinses prior to the aqueous rinses we have issues. Is there any way we can avoid the organic rinses?
A. To avoid organic rinses, you can soak in a high emulsifying cleaner such as a 1% Alconox solution (1.25 oz/gal or 10 g/L) prior to aqueous rinsing. Ideally soak in a warm or hot solution for fastest and most reliable results. The emulsifiers in Alconox will emulsify the solvents and active pharmaceutical ingredients (API). Be sure to rinse at the same temperature you are soaking at so you do not break the emulsion and redeposit the API or solvents. If you soak hot . . .

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Posted in Alconox, Detergent 8, Manual Lab Cleaning0 Comments

Lab Test Tubes

Minimum Detergent Concentration?

My question is related to a minimum detergent concentration.  We manually wash labware of all sizes in 0.3% Liquinox solution. We also pre-wash or pre-rinse the labware and control our parts load.  We rarely have failures. We want to change our protocol to extend the wash water use for one day instead of based on a numerical parts load.  Do you think a 0.3% Liquinox concentration is sufficient detergent capacity to go an entire day?

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Posted in Laboratory, Liquinox, Manual Lab Cleaning0 Comments

Cleaning Proteins, RNA and DNA from Lab Equipment

Q. How can I clean proteins, RNA, and DNA from laboratory equipment?

A. Thank you for your question concerning cleaning proteins, RNA and DNA from laboratory equipment.

We will address each separately . . .

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Posted in Alconox, Citrajet, Citranox, Detojet, Laboratory, Manual Lab Cleaning, Tergazyme0 Comments

Cold Cleaning

Q: We are a large biotech and in an effort to go green with our cleaning, we are exploring cold cleaning (cleaning with cold water) using your detergents. A: Cold cleaning is a very reasonable approach for energy conservation, and in short, its effectiveness depends on the details of the application.

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Posted in Biotechnology, Cosmetic, Laboratory, Manual Lab Cleaning, Medical Device, Metalworking & Precision Manufacturing, Pharmaceutical0 Comments