The result shows that the fluorescence intensity is proportio-nal to the pressure of the pure NO below 40 Pa. Detection limit of 0.1 ppmv is reached at anatmospheric-pressure N_2.

• 结果表明纯 NO 气压在40 Pa 以下荧光强度与气压成正比；在0.；1 MPa 的 N_2中 NO 的检测限可达0