The results show that the spectral interference between elements from proposed multi-element HCLs was as low as that from traditional single-element HCL spectrometry, which is similar to earlier FAAS methods (24, 25). In this experiment,
two multi-element HCLs were adopted, one with Ca, Cu, and Zn and another with Fe, Mg, and Mn. Results indicate that a combination of two multi-element HCL produces less interference than a six-element HCL pattern. Thus, the proposed FAAS
could greatly reduce the RSD during repeated tests and detection time by simplifying the detection process, thus enhancing the practicability of the method.