Chapter 4, Problem 4.31P

Interpretation Introduction

Interpretation:

The reason for obtaining a negative concentration while analysing an unknown analyte has to be given.

Concept Introduction:

Linear Calibration Curve:

The equation of linear calibration line is:

$y(\pm s_y)=[m(\pm u_m)]x+[b(\pm u_b)]$

Where,

$y$ is the corrected absorbance.

$\text{corrected absorbance = observed absorbance - blank absorbance}$

To Give: The reason for obtaining a negative concentration while analysing an unknown analyte