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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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Digital dry block heating system for microtubes BTD

Grant block heating systems with fixed blocks are designed for rapid and precise heating of microtubes up to 100ºC. Digital (BTD) control Heating range ambient + 5º to 100ºC, with rapid heat-up time Stability and uniformity ± 0.1ºC Capacity for up to 49 microtubes in a combination of four sizes Compact ... more

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