Standard curve for silver ion measurement by spectrophotometer

Suggestions:?

1. firstly predict the silver ion concentration of the sample to be measured;?

2. Using the external standard method, apply the relevant quantitative chemical analysis instruments and operations to prepare a series of silver ion solutions (e.g. silver nitrate) close to the concentration of the sample to be measured?

3. Determine the series of silver ion solutions spectrophotometrically, and plot the standard curve with reference to Lambert's Beer's law?

Using origin software to fit.?

4. Repeat three times to get the standard curve.?

5. Measure the sample to be tested and deduce the concentration from the standard curve.

Additional answer, as in the figure, the horizontal axis can be the concentration, the vertical axis is the absorbance, do five sets of experiments, get the fitted straight line, and then do the samples you want to measure, draw the points on the graph, read the concentration can be.