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用脉冲可调谐染料激光共振激励火焰中的钠原子。通过测量钠原子的激光增强电离光谱(LEIS)信号进行钠原子的灵敏检测,实际的检测限可达10~(-11)g/ml。
Pulsed tunable dye laser resonance stimulates sodium atoms in the flame. The detection limit of sodium is 10 ~ (-11) g / ml by measuring the sodium atom by laser enhanced ionization spectroscopy (LEIS) signal.