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Table 8 Stability parameters for developed bioanalytical method

From: Chromatographic method for estimation of vitamin E from dried blood spot sample

Stability study

QC samples

Vitamin E

Mean area ratio of fresh sample ± SD (n = 5)

Mean area ratio of stability sample ± SD (n = 5)

Short-term stability

LQC

2.2726 ± 0.0020

2.254 ± 0.0015

HQC

10.7822 ± 0.0023

10.7644 ± 0.0022

Freeze thaw stability

LQC

2.274 ± 0.0015

2.2068 ± 0.0076

HQC

10.7812 ± 0.0043

10.7288 ± 0.0039

Long-term stability

LQC

2.2804 ± 0.0099

2.1984 ± 0.0110

HQC

10.7806 ± 0.0060

10.6876 ± 0.0090

Stock solution stability (at RT)

LQC

2.284 ± 0.0069

2.277 ± 0.0079

HQC

10.786 ± 0.0069

10.777 ± 0.0058

Stock solution stability (at 2–8 °C)

LQC

2.2836 ± 0.0089

2.2704 ± 0.0081

HQC

10.7866 ± 0.0082

10.7702 ± 0.0023