Linearity was assessed by injecting
three consecutive times 7 standards (0, 0.25, 0.5, 2.5, 5, 10, and
20 mg L1 of EDTA), using peak area (y) as a calibration parameter
plotted against concentrations (x): a linear graph was obtained
(n = 21), with an equation y = (0.295 ± 0.003)x (0.026 ± 0.027)
Linearity was assessed by injectingthree consecutive times 7 standards (0, 0.25, 0.5, 2.5, 5, 10, and20 mg L1 of EDTA), using peak area (y) as a calibration parameterplotted against concentrations (x): a linear graph was obtained(n = 21), with an equation y = (0.295 ± 0.003)x (0.026 ± 0.027)
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