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At their most basic, centrifuges are little more than a motor that spins around, effectively pushing objects out with a force exponentially proportional to their distance from the center of rotation. Some centrifuges sit on a desk and do little more ... Read More

Photodiode array detectors—variously abbreviated as “PDA detectors” or simply “DADs”—are essentially spectrophotometers that transiently measure the absorbance of light by a liquid flowing past. They are the dominant detector type used in ... Read More

Inductively coupled plasma-mass spectrometry (ICP-MS) is a type of mass spectrometry for measuring most of the elements in the periodic table with detection limits at or below the parts-per-trillion range. Most samples analyzed by ICP-MS systems are ... Read More

Clinicians use blood gas analyzers to measure the level of arterial oxygen tension (pO2), carbon dioxide tension (pCO2), and acidity (pH) to assist them in disease diagnosis and treatment. The pO2 is an indication of the pressure of oxygen dissolved ... Read More

A UV-VIS spectrophotometer, as the name implies, measures the intensity of light absorbed (or reflected) by, or transmitted through, a substance at specific wavelengths between about 190 and 900 nm—the ultraviolet and visible spectra. Read More

Gas chromatography (GC), much like liquid chromatography (LC), is used to separate compounds by sending a mixture through a column with which the constituent compounds differentially interact, detecting them as they emerge. But while “LC compounds ... Read More

Did you ever wonder just how would your dependable lab equipment—or your smartphone, for that matter—function in, say, Antarctica? Or even just blocks from your home or lab? How long would your smartphone or tablet last if it were accidentally left ... Read More