Tag Archive | "labware"

hard water

Citrajet and Hard Water

I work in a lab here in London, and we are washing lab glassware (molecular biology/bacteria) with a standard home dishwasher. We do not have access to distilled water for rinsing, and our water is very hard. Will Citrajet be okay under those conditions? Also, do you have a distributor for Citrajet in the UK?

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Residue-Free Glassware Cleaner for Lab Washer

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

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Water Spots & Oil Removal: Pharma & Lab Glassware

Q. We see white water spots on cleaned and depyrogenated vials. Looks to be scale from the washer. Do you have a recommended cleaning agent for vial washing? Click to read the answer.

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Lab Glassware

Removing Trace Contaminants of Phenol

Q. We are attempting to validate our glassware washing process and found trace contaminants of phenol remaining after the washing process. Is there another detergent that is able to remove phenol better then Liquinox®?

A. In general, for manual cleaning, Liquinox® should be an excellent choice for removal of phenol residues. For very low level trace analysis, additional rinsing may be required. For routine laboratory cleaning, a triple rinse is typically used. For trace analysis, a 6 time rinse with purified water is typically used. For extreme low level trace analysis . . .

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Alconox Powder Vs. Alcotabs Detergent

Alcotabs® Tablet Pipet Detergent is a tablet that is designed to effervesce and give time release flotation and detergent cleaning in a siphon pipet washer. Alcotabs detergent dissolve to a pH near 7, starting out acidic and the pH rises as the effervescence slows down and eventually stops. The tablets contain anionic surfactants, phosphates, carbonates and organic acids.

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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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Cleaning Glassware Exposed to Sea Water

Q. What is the proper way to clean lab glassware that has been exposed to sea water?
A. Sea water contains a large and variable quantity of salts, biological and organic residues. Lab glassware needs to be free of any of these residues to avoid interference in research involving sea water. Sea water would not particularly present challenges beyond the normal array of residues that lab glassware sees in the wide variety of types of lab glassware that Alconox, Inc. laboratory detergents are used to clean. A standard cleaning protocol will work fine.

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