校准曲线的回归与化探样品中痕量金分析准确度间的关系

The relationships of trace gold analytical accuracy in the stream sediments on regressive calibration curve

本文针对日立180—80偏振塞曼石墨炉原子吸收法测定化探样品中痕量金,出现低含量样品测量值为负值的情况,探讨其引起的主要原因及其解决的基本途径。

This paper reported the detrmination of trace Au in stream sediments by HITACHI Z-180-80 graphite furance atomic absorption spectrometry,the determinate values are tend to low or negative in the low content samples. Its main reasons of caused and the basic solving methods are investigated.