Application of Multi-point Standard Addition Method
1. (requires Excel) To determine the concentration of the analyte in the sample, a standard addition method was performed. A 5.00 mL portion of the sample was analyzed and then successive 0.10 mL spikes of 600 ppb standard of the analyte were added, analyzing after each spike. The following results were obtained.
Volume of spike (mL) | Signal
0.00 | 0.119
0.10 | 0.231
0.20 | 0.339
0.30 | 0.442
a) Construct an appropriate standard additions calibration curve
b) Determine the concentration of the analyte in the original sample.
