Research Article

Development and Validation of a New Method for Determination of Pb and Cr in Marine Organisms by Total Reflection X-Ray Fluorescence (TXRF) Spectroscopy

Figure 3

Calibration graph for Cr. Conditions: 0.005 mol·L−1 EDTA and 1 mol·L−1 HNO3. The error bars represent the standard deviation (n = 3) for each point.