Procedure blanks, SRMs, and duplicates of 10% sample load were also processed along with the samples. More details on the total digestion method and quality assurance/ quality control (QA/QC) can be found in our previous study (Zhang et al., 2012a).
Procedure blanks, SRMs, and duplicates of 10% sample load were also processed along with the samples. More details on the total digestion method and quality assurance/ quality control (QA/QC) can be found in our previous study (Zhang et al., 2012a).
Procedure blanks, SRMs, and duplicates of 10% sample load were also processed along with the samples. More details on the total digestion method and quality assurance/ quality control (QA/QC) can be found in our previous study (Zhang et al., 2012a).