Monthly Archives: February 2012

29 Feb

Trespa® Athlon® Shelves

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I was recently working with a client who was in the process of remodeling their lab.  When it came to shelf design and placement, there was a concern in regards to stability, movement due to vibration and resistance to spills for … Continue reading

27 Feb

Moisture Determination

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Moisture determination in foods, grains, pharmaceuticals, plastics, gypsum and other building materials, and total solids in wastewater can be performed efficiently with the use of a moisture balance.  Although a balance and an oven can be used for moisture determination, … Continue reading

23 Feb

Babcock Bottles

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Now here’s something you don’t use everyday.  Working as a Lab Sales Specialist, I have been receiving several requests for Babcock Bottles in recent months.   Though, never personally having a chance or need to use one, it did spark my curiosity.  Hopefully I’m not the only … Continue reading

20 Feb

Electrodes

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How do you know which pH electrode is right for your pH measurement application?  Many manufacturers have guides which show which pH probe is best for an environment or application.  Here are some applications and types of electrodes: Biological/Pharmaceutical:  TRIS … Continue reading

17 Feb

Sporocides and Sanitizers

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Some disinfectants are known as sterilants or sporocides which means that they destroy all microbial life including endospores.  An exmple is ethylene trioxide.  This gas is used to sterilize objects such as petri dishes and medical devices.  These objects are … Continue reading

13 Feb

Karl Fischer

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Karl Fischer Titration is a specific and accurate method for water determination.  The reaction is: B·I2 + B·SO2 + B + H2O → 2BH+I− + BSO3 BSO3 + ROH → BH+ROSO3− Where B is a base such as Imidazole and … Continue reading

10 Feb

Antiseptics

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We use antiseptics everyday.  An antiseptic is a chemical agent used to kill or control the growth of microorganisms.  Hospitals use sodium hypochlorite which is identical to household bleach to control microorganisms.  Medical professionals use alcohol to sterilize the skin … Continue reading

10 Feb

Bunsen Burners

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Well, here’s a handy item that no laboratory should be without.  An Electric Bunsen Burner by Barnstead.       The heat range is 800-1000°C.    A major benefit is the safety of electric as well as being the cleanest method out of all options. The burner is … Continue reading

06 Feb

Titration

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In quantitative analysis titration is used to determine the concentration of an unknown sample.  A typical titration involves an erlenmeyer flask with the unknown sample – the analyte – and a buret filled with a reactant of a known concentration … Continue reading

03 Feb

Settling Cones & Cone Racks

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Settling Cone and Cone Racks  are the primary tool for the determination of settleable matter in water and waste effluent.  The process is also used to measure sand content in well water.  Settling is the process by which particulates settle to … Continue reading