Atomic Absroption Spectroscopy
Atomic Absorption Spectrophotometers An atomic absorption spectrophotometer consists of many complex and integral pieces. These components work together to help determine the concentrations of many different elements in various products to a very precise and accurate value. The instrumentation can vary depending on the use the machine is designed for, and the amount of accuracy that is required. There are four basic components of atomic absorption spectrophotometer. They are as follows: a narrow band source of EMR (electromagnetic radiation), the sample compartment where the sample is atomized, a monochromator which is used to isolate the certain wavelength of EMR you are interested in, and a detector which determines how much of the EMR was absorbed / scattered by the sample. The most common source used in atomic absorption spectroscopy (AAS) is a hollow cathode lamp (HCL). The HCL has two electrodes, an anode that is negatively charged, and a cathode having positive charge. This charge is a result of a large electrical potential across the electrodes. These electrodes are contained in a sealed glass tube filled with an inert gas such as argon or neon. This inert gas is to prevent the oxidization of the electrodes. The ano
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Some common words found in the essay are:
EMR HCL, HCL HCL, Absorption Spectrophotometers, atomic absorption, flame atomization, sample compartment, sample atomized, absorption spectrophotometer, atomic absorption spectrophotometer, transmittance reading, electrical potential, graphite furnace, deuterium lamp, 100% transmittance, air 100% transmittance, beam passing sample, focused sample compartment, atomic absorption spectroscopy,
Approximate Word count = 1190
Approximate Pages = 5 (250 words per page double spaced)
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