Intraday precision and method precision studies of PMB

DrugConcentration (μg/mL)MorningAfternoonEvening
Peak area
(n = 3)
RSD (%)Peak area
(n = 3)
RSD (%)Peak area
(n = 3)
RSD (%)
PMB52,8640.9182,8930.9092,8540.957
1011,8000.85611,8770.87511,8790.88
1524,5990.99124,6490.92224,6060.939
2039,5120.8739,5040.87839,5670.997
2550,3280.9750,5070.86350,4370.751
Mean--0.921-0.889-0.904
Overall RSD (%)0.904

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