On average, CBD was found to be 27% lower than the concentrations stated on the labels, with extremes ranging from +6.67% to -78.33% CBD
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studied the efficiency of CA membranes in lead, chromium, zinc, copper, and mercury removal at a concentration of 100 mg/L, and the mentioned removal rate for metals was more than 99% 55
Also, DW (15 M/cm) produced from an ELGA Purelab (Lane End, High Wycombe, UK) water purification system was applied to the experiment after filtering via filter papers with pore-size of 0.45 m