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How a Refractometer Works    

A refractometer is a simple instrument used for measuring concentrations of aqueous solutions. It requires only a few drops of liquid, and is used throughout the food, agricultural, chemical, and manufacturing industries. How a Refractometer Works When light enters a liquid it changes direction; this is called refraction. Refractometers ... more


Good Laboratory Practices for taking Turbidity Measurements    

Avoid samples containing air bubbles, coarse debris, or floating sediments—all of these can cause erroneous readings. For the highest accuracy, calibrate your turbidity meter with the appropriate calibration standard in each measuring range. Etched, scratched, or dirty sample vials scatter light and give inaccurate readings; always ... more


Principles of Polarimetry    

Polarimetry measures the rotation of polarized light as it passes through an optically active fluid. The measured rotation can be used to calculate the value of solution concentrations; especially substances such as sugars, peptides and volatile oils. A polarimeter consists of a polarized light source, an analyzer, a graduated circle to ... more


What is Autoclave    

What is Autoclave An autoclave is possibly, one of the most important devices in the medical field. Autoclaves are used in sterilization. The benefit of using an autoclave is that it can reach temperatures higher than boiling water alone, so it can kill not only bacteria but also bacterial spores, which lean to be resistant. The autoclave is ... more


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Minitest – Stats    

Minitest 1100/2100/3100/4100 A range of instruments for more advanced statistical information which take a wide range of probes for coating thickness readings up to 100MM. The 3100 and 4100 models have a large memory which can be split into batches for storage and later printout or download to PC. They also have limit settings giving a histogram ... more

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