Maximum Solvent Concentration of Standards

  • When preparing standards and QCs in a matrix such as plasma, urine, etc., the maximum amount solvent, from a stock standard(s) containing the analyte(s), should not exceed a certain percentage of the total volume.
  • This can be calculated using the equation below:

% Stock Standard = spiking amount (ml) / [matrix amount (ml) + spiking amount (ml) *100