The terms optical emission spectrometry and photoelectric optical emission spectrometry however generally refer to optical emission spectrometry using spark discharge direct current arc discharge or glow discharge for generating the excitation discharge shimadzu optical emission spectrometers feature pulse distribution analysis pda to enhance the measurement reproducibility . Anode cathode atmospheric pressure glow discharge optical emission spectrometry hg fla apgd oes hg flc apgd oes in a unique set up was investigated by pohl et al in poland 3536 the simultaneous determination of chemical vapor generating elements is still a challenge and a highly desirable goal however it is difficult to achieve because of the different conditions for prereduction . Atomic emission spectroscopy aes is a method of chemical analysis that uses the intensity of light emitted from a flame plasma arc or spark at a particular wavelength to determine the quantity of an element in a sample the wavelength of the atomic spectral line in the emission spectrum gives the identity of the element while the intensity of the emitted light is proportional to the . Electric glow discharge is a type of plasma formed by passing a current at 100 v to several kv through a gas usually argon or another noble gas it is found in products such as fluorescent lights and plasma screen televisions and is used in plasma physics and analytical chemistry and has been proposed as an alternative method by which stars produce their visible spectra
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