一、同步辐射光 由于常规X射线源(如:X-光管;放射性同位素)的强度低,散射背景高,使得X射线荧光光谱(XRF)法的检测限不如其他一些方法低。借助于化学预富集(如:共沉淀,萃取,离子交换…),检测限虽下降1～2个数量级,却牺牲了其他方面的优点。 1947年,在电子同步加速器上,证实了“近 First, synchrotron radiation Due to the low intensity of conventional X-ray sources (eg X-ray tubes; radioisotopes) and high scattering background, the XRF detection limit is not as good as some of the other methods. With the aid of chemical pre-enrichment (such as coprecipitation, extraction, ion exchange ...), the detection limit decreased by one or two orders of magnitude, but at the expense of other advantages. In 1947, on the electronic synchrotron, confirmed "near