Search results
Results from the WOW.Com Content Network
Flame photometry is a type of atomic emission spectroscopy. It is also known as flame emission spectroscopy . [ 1 ] [ 2 ] A photoelectric flame photometer is an instrument used in inorganic chemical analysis to determine the concentration of certain metal ions, among them sodium , potassium , lithium , and calcium . [ 3 ]
A photometer. A photometer is an instrument that measures the strength of electromagnetic radiation in the range from ultraviolet to infrared and including the visible spectrum. Most photometers convert light into an electric current using a photoresistor, photodiode, or photomultiplier. Photometers measure: Illuminance; Irradiance; Light ...
A laboratory flame photometer that uses a propane operated flame atomizer Liquid or dissolved samples are typically used with flame atomizers. The sample solution is aspirated by a pneumatic analytical nebulizer , transformed into an aerosol , which is introduced into a spray chamber, where it is mixed with the flame gases and conditioned in a ...
A flame during the assessment of calcium ions in a flame photometer. The sample of a material (analyte) is brought into the flame as a gas, sprayed solution, or directly inserted into the flame by use of a small loop of wire, usually platinum. The heat from the flame evaporates the solvent and breaks intramolecular bonds to create free atoms.
Kepler Mission space photometer. In astronomy, photometry, from Greek photo-("light") and -metry ("measure"), is a technique used in astronomy that is concerned with measuring the flux or intensity of light radiated by astronomical objects. [1]
The Beckman team eventually developed additional models, as well as a number of accessories or attachments which could be used to modify the DU for different types of work. One of the first accessories was a flame attachment with a more powerful photo multiplier to enable the user to examine flames such as potassium, sodium and cesium (1947).
Photometry is a branch of optics that deals with measuring light in terms of its perceived brightness to the human eye. [1] It is concerned with quantifying the amount of light that is emitted, transmitted, or received by an object or a system.
Photometria was the first work to accurately identify most fundamental photometric concepts, assemble them into a coherent system of photometric quantities, define these quantities with a precision sufficient for mathematical statements, and build from them a system of photometric principles. These concepts, quantities, and principles are still ...