Sulfur content in steel samples has been determined by laser-produced plasma atomic emission spectroscopy with the use of a Q-switch Nd: YAG laser. With the use of time-resolved spectroscopy employing an OMA III (EG&G) as detector, a detection limit of 70 ppm and a precision of 7% have been obtained. Calibration curves are linear, and no noticeable matrix effects have been observed.
Ana González, Montserrat Ortiz, and José Campos, "Determination of Sulfur Content in Steel by Laser-Produced Plasma Atomic Emission Spectroscopy," Appl. Spectrosc. 49, 1632-1635 (1995)
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