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In fact, the majority of the current green analytical chemistry principles focus on sample preparation where direct analysis avoiding sampling; use of minimal sample size; perform in-situ measurements; and selection of automated and miniaturized methods. Moreover, solid-phase extraction (SPE) face ...
vesiculosus was found to have free radical scavenging activity similar to that of phloroglucinol, especially at concentrations above 0.05 mg/mL. The DPPH radical scavenging activity of the EtOH extract of seaweed was equal to that of the NADES extract (Figure 4). Figure 4. DPPH radical ...