Data were organised using computer Excel program and mean
values from different sources of egg yolk were compared and one
way ANOVA done by Duncan’s Multiple Range Test (Steel &
Torrie, 1990). Regression and correlation coefficients were drawn
between the data obtained by iCheck and AOAC as well as iCheck
and HPLC. Tests of agreement between the new method and the
two reference method were performed using Bland–Altman test
(Altman & Bland, 1983).