Data and code for: Trace Element Analysis in Hypersaline Matrices: Analytical Challenges and Strategies from Oilfield Produced Water to Critical-Mineral Brines

Supporting data and code for a critical review of trace-element analysis in hypersaline matrices (oilfield produced waters, desalination concentrates and critical-mineral brines). The data workbook (Supplemental_data_workbook.xlsx) contains the compiled element-level detection limits with all conversions (Table S1), the medians by element and approach (Table S2), AGREE greenness inputs and scores (Tables S3–S4), the register of all reviewed methods with inclusion decisions (Table S5), the evidence behind Fig. 4 (Table S6), the literature-search record (Table S7), the source of every cited reference (S8) and the DOI list of the exploratory search (S9). Every value is calculated by spreadsheet formula. The code archive (Supplemental_code_archive.zip) contains CSV files and Python scripts that reproduce Table 6, Table 8, Fig. 3 and every count quoted in Section 8 of the review, together with the Scopus search records. The Supplemental material (Word) presents the supplementary tables and figure.