Table 5 Evaluation of the accuracy and intermediate precision of the proposed spectrofluorimetric method in fortified milk samples.

From: Spectrofluorimetric determination of butylated hydroxytoluene and butylated hydroxyanisole in their combined formulation: application to butylated hydroxyanisole residual analysis in milk and butter

BHA in powdered milk

BHA in liquid milk

Fortified concentration (mg/kg)

Mean concentration recovery (mg/kg) ± mg/kg*

% Relative error

Fortified concentration (mg/L)

Mean Concentration Recovery (mg/L) ± % mg/L*

% Relative error

2

2.06 ± 0.21

3.00

0.25

0.23 ± 0.01

 − 8.00

17.50

16.36 ± 0.51

 − 6.51

3

2.91 ± 0.09

 − 3.00

30

28.76 ± 1.57

 − 4.13

7

7.35 ± 0.23

5.00

  1. *Average of six determinations.
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