【摘要】 本文报导了EPR波谱g值的精确测定方法.通过改变仪器的操作参数来选择波谱中心,对三种自由基样品的 g 值进行了测量,结果的精密度优于前人的结果.测量误差主要来源于样品位置处与 NMR测场仪探头处之间的磁场梯度的变化及较低的 EPR 信号的信噪比及较大的谱线宽度.更多还原

【Abstract】 In this paper the accurate method for measurement of g-values inEPR spectra is reported.By changing the spectrometer operating para-meters the center of an EPR spectrum can be determined,g-value mea-surements have been made for 3 free radicals with the accuracy whichhas not previously been attainable.The errors are mainly caused by thevariations in the difference between the magntic field at the sample andthat at the probe of the proton NMR-Gaussmeter,and by a low Signal-to-Noise ratio and a large spectral line width of the detected EPR sp-ectrum.更多还原