[Effect of nebulizer gas pressure on the emission intensity of ICP].
College of Physics Science and Technology, Hebei University, Baoding 071002, China.Guang pu xue yu guang pu fen xi = Guang pu (Impact Factor: 0.29). 10/2006; 26(9):1707-9.
In an attempt to inhance the emission intensity of ICP, a conventional concentric pneumatic nebulizer was used with increased pressure, and the aqueous aerosol was partially let out to modulate the flow velocity of sample solution into the flame of the ICP. In the present work, the emission spectra of elements Ca, Si, Sr and Zn in water samples were measured, and the results showed that corresponding emission intensities are the highest at 0.05 MPa under the conventional condition, and after increasing the nebulizer gas pressure to 0.07 MPa and letting out part of aqueous aerosol, the peak values grew by 38%, 79%, 45% and 70%, respectively. In addition, the stability of the plasma radiation was not affected by the higher nebulizer gas pressure.
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