The sensitivity of determining directly trace copper, iron and zinc in relish by microsample introduction-derivative flame atomic absorption spectrometry were 0.0, 0.0 and 0.00 u g/ml, respectively.
The sensitivity of determining directly trace copper, iron and zinc in relish by microsample introduction-derivative flame atomic absorption spectrometry were 0.0, 0.0 and 0.00 u g/ml, respectively.
方法：环境中样品多种多样，基于不同样品的特点，本研究分为三部分：第一部分：对于含待测元素浓度较高的样品，如各种调味品，经适当处理后利用微量进样．导数火焰原子吸收光谱法直接测定其中铜、铁和锌的含量，该法可用于调味品的常规检测。