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粉末试样直接原子化是原子吸收中最引人注目的问题之一。不需要什么试剂,因而避免了试剂沾污。固体试样直接原子化,火焰及无火焰原子吸收分析国外时有报导,国内不多见。我们用常规手段,自制加样小舟,石墨粉稀释试样,在次灵敏线用石墨杯直接测定了红柱石、硅线石等高铝岩石中钾。用固定量的标准水溶液加到精确称量的不同重量试样中去的标准加入法作了校正比较。探索了固体试样直接分析的可行性。
Direct atomization of powder samples is one of the most noticeable problems in atomic absorption. No reagents are required, thus avoiding reagent contamination. Direct atomization of solid samples, flame and flame atomic absorption spectrometry were reported abroad, rare in China. We use conventional methods, self-sample boat, graphite powder diluted samples, in the second sensitive line with graphite cup directly measured the andalusite, sillimanite and other high-aluminum rock potassium. A fixed amount of standard solution added to accurately weigh the different weights of the sample to the standard addition method to make a comparison. Explore the feasibility of direct analysis of solid samples.