论文部分内容阅读
地球化学探矿扫面样品测锡下限要求1微克/克,测锑要求0.2微克/克,并需大批量快速分析用氢化物发生电热原子吸收法测定是一种有效的方法。根据本室条件,我们装了一种结构简单,使用方便,安全可靠,易于掌握,稳定性和重现性都较好的氢化物发生器。测锡时,波长在224.6nm,灵敏度为0.2ppb/1％吸收;测锑时,波长在217.6nm,灵敏度为0.058ppb/1％吸收。一小时内最少可做60个样品的单项测定。
Geochemical prospecting scanning samples to determine the tin limit of 1 micrograms / gram, measuring antimony requirements of 0.2 micrograms / gram, and the need for large quantities of rapid analysis using hydride generation electrothermal atomic absorption method is an effective method. According to the room conditions, we have a simple structure, easy to use, safe, reliable, easy to master, good stability and reproducibility of hydride generator. Measured tin, the wavelength of 224.6nm, the sensitivity of 0.2ppb / 1% absorption; measured antimony, the wavelength of 217.6nm, the sensitivity of 0.058ppb / 1% absorption. A minimum of 60 samples can be done within one hour.