论文部分内容阅读
基体改进技术就是往石墨炉或试液中加入化学物质,使基体形成易挥发化合物在原子化前驱除,从而避免待测元素的共挥发;或降低待测元素的挥发性以防止灰化过程中的损失。以用石墨炉法测Pb为例,介绍基体改进技术的运用。
Matrix improvement technology is to graphite furnace or test solution by adding chemicals to the substrate to form volatile compounds in the atomization before driven away in order to avoid co-volatilization of the elements to be measured or to reduce the volatility of the test element to prevent the process of ashing Loss. Take graphite furnace method to measure Pb as an example, introduces the application of matrix improvement technology.