原子荧光光谱仪在痕量元素检测中的应用及优化研究

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中图分类号：0657.31 文献标志码：A 文章编号：1003-5168（2025）19-0082-04

DOI：10.19968/j.cnki.hnkj.1003-5168.2025.19.016

Application and Optimization Research of Atomic Fluorescence Spectrometerin TraceElementDetection

ZHANG WeiTAN JingLIU JieLIU YanfengLIU Xiaojian ZHANG Hongchao （Changsha Natural Resources Comprehensive Survey Center of the China Geological Survey， Changsha 410600，China）

Abstract：[Purposes] With the increasing demand for trace element detection in fields such as the environment，food，and biology，the application of atomic fluorescence spectrometers is becoming more widespread.This study aims to deeply explore the performance of atomic fluorescence spectrometers in trace element detection，optimize the detection conditions，and improve the accuracy and sensitivity of detection.[Methods] This paper elaborates on the working principle and structural composition of atomic fluorescence spectrometers.Through experiments，the influence of instrument parameters such as lamp current，negative high voltage，and carrier gas flow rate on the detection signals of typical trace elements such as arsenic and mercury was studied.Simultaneously，sample pretreatment methods were optimized， and the effects of diffrent digestion methods on the detection results were compared.[Findings] The optimal working parameters for the instrument were determined. Under the optimized conditions，the detection limits for arsenic and mercury were as low as 1μg/L and 2μg/L ， respectively， with good precision. The relative standard deviation was less than 3% ，and the standard addition recovery rates were between （20 95% and 105% . [Conclusions] The optimized detection method using the atomic fluorescence spectrometer can effectively meet the requirements for trace element detection，providing reliable technical support forquality control and safety monitoring in related fields.Furthermore，directions for improvement are proposed addressing the problems encountered during the detection process，and the future development of atomic fluorescence detection technology is prospected.

Keywords： atomic fluorescence spectrometer; trace elements; parameter optimization; sample pretreatment;detection accuracy

0 引言

在科技发展迅速的当今时代，痕量元素的检测对环境质量评估、食品安全保障、生物医学研究等领域至关重要。（剩余4503字）