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THE FEUTEX TOOLKIT

Blank-Corrected Linear Calibration

Estimate concentration from sample signal, blank and a supplied linear calibration slope.

Laboratory workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaMeasured aliquot concentration = (sample-blank)/slope; Dilution-corrected concentration = (sample-blank)/slope*dilution

Worked example

Inputs

Sample signal
1.1 signal units
Blank signal
0.1 signal units
Calibration slope
2 signal/concentration
Dilution factor
10 ×

Expected results

Measured aliquot concentration
0.5 concentration units
Dilution-corrected concentration
5 concentration units

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Estimate concentration from sample signal, blank and a supplied linear calibration slope.
  2. Set sample signal, blank signal, calibration slope, dilution factor in the indicated units.
  3. Calculate and compare measured aliquot concentration, dilution-corrected concentration.

Try this example

{
  "sample": 1.1,
  "blank": 0.1,
  "slope": 2,
  "dilution": 10
}

Accuracy and scope

Uses an already validated linear calibration. Does not fit a curve, establish detection limits or assess matrix interference.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.