论文部分内容阅读
本文讨论了基体干扰和基体改进对原子吸收曲线的影响。综合评述了有关文献报导,并结合基体改进剂对灰化温度、原子化出现温度和原子化峰值温度的测试,探讨了基体改进效应的机理,归纳提出了基体改进的六条途径。指出选用适当的基体改进剂,通过形成易挥发的基体化合物,形成比较易熔易分解的化合物,形成热稳定的化合物或合金,形成强还原性环境和改善基体的物理特性,可有效地降低和消除基体干扰,提高灵敏度和改善精密度。
This article discusses the effects of matrix interference and matrix modification on the atomic absorption curve. Comprehensive review of the literature, combined with the matrix modifier on ashing temperature, atomization temperature and atomization peak temperature test to explore the mechanism of the matrix to improve the effect, summarized the six ways to improve the matrix. It is pointed out that the proper matrix modifier can be selected to form a more volatile and decomposable compound by forming a volatile matrix compound to form a thermally stable compound or alloy to form a strong reducing environment and improve the physical properties of the matrix, Eliminate matrix interference, improve sensitivity and improve precision.