Using the experimental data for P analysis using autoanalyzer make a standard addition curve like above example curve for your data

2. Corrected Values, Channel:: 1 Pk\# Type Cl. CLP Group Digit Conc mAU Start Pos R A Weight Dilution Name of analysis : Chemistry Phosphate Method. ANL * .. Sample offscale + ... Result higher than sample limit Standard Addition Curve For Phosphate 2. Corrected Values, Channel:: 1 Pk\# Type Cl. CLP Group Digit Conc mAU Start Pos R A Weight Dilution Name of analysis : Chemistry Phosphate Method. ANL * .. Sample offscale + ... Result higher than sample limit Standard Addition Curve For Phosphate