Use Standardization Factor Calculator when you need to calculate an analytical standardization factor as actual concentration divided by nominal concentration. Enter Actual concentration and Nominal concentration using the definitions and units below so the result can be reproduced.

Actual concentration

A finite measured or assumed value greater than 0, expressed in mol/L.

Nominal concentration

A finite measured or assumed value greater than 0, expressed in mol/L.

The published tool contract uses this rule: Calculate an analytical standardization factor as actual concentration divided by nominal concentration.

Standardization factor

The calculated standardization factor.

A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small. Actual concentration must be greater than 0; Nominal concentration must be greater than 0.

Retain the original Actual concentration and Nominal concentration values and their units alongside the result. Analytical Dilution Correction Calculator is useful when you instead need to correct a diluted analytical concentration using the aliquot and final solution volumes. Calibration Slope provides another view by helping you compute the calibration curve slope from two concentration and response pairs.

• Analytical Dilution Correction Calculator

  Correct a diluted analytical concentration using the aliquot and final solution volumes.

• Calibration Slope

  Compute the calibration curve slope from two concentration and response pairs.

• Analytical Spike Recovery

  Calculate percent recovery as (measured spiked result − unspiked result)/known spike amount ×100. All three quantities must use the same unit; values outside 0–100% can reveal matrix effects or measurement problems.