| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser induced fluorescence analyzing method capable of easily determining trace amounts of many elements. SOLUTION: In the laser induced fluorescence analyzing method, concentration of an objective element is determined by applying a resonance excitation pulsed laser having an inherent wavelength resonating with the objective element in a sample on the atomized sample and spectrally analyzing a generated quantity of fluorescence. It is characterized by that a pulse time width of the resonance excitation pulsed laser is >=100 fs and <=500 ps as a full width of half maximum. It is favorable that the sample is atomized by one of laser irradiation, heating inside a graphite reactor, high frequency inductively coupled plasma, spark discharge, arc discharge, or glow discharge.
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