Table 2 Accuracy and precision of the proposed HPLC method for the determination of AZT, FP and OXY in nasal mucosa.

From: Validated HPLC method for simultaneous determination of azelastine hydrochloride fluticasone propionate and oxymetazoline in nasal mucosa and nasopharyngeal swabs from real human samples

Samples

AZT

FP

OXY

Conc (µg/mL)

Recovery%

Conc (µg/mL)

Recovery%

Conc (µg/mL)

Recovery%

LLOQ

8.00

103.95

10.00

103.67

10.00

103.66

LQC

24.00

102.59

30.00

98.60

30.00

106.07

MQC

62.50

101.83

50.00

99.23

62.50

99.89

HQC

87.50

98.40

70.00

101.07

87.50

102.35

Mean ± SD

101.69 ± 2.36

100.64 ± 2.28

102.99 ± 2.58

Samples

Intraday precision

AZT

FP

OXY

Conc (µg/mL)

Mean recovery*% ±RSD

Conc (µg/mL)

Mean recovery*% ±RSD

Conc (µg/mL)

Mean recovery*% ±RSD

LLOQ

8.00

106.80 ± 3.83

10.00

107.67 ± 0.89

10.00

103.66 ± 8.34

LQC

24.00

102.10 ± 0.46

30.00

98.05 ± 1.20

30.00

107.78 ± 5.98

MQC

62.50

101.78 ± 0.09

50.00

98.88 ± 0.71

62.50

97.60 ± 5.52

HQC

87.50

99.08 ± 0.98

70.00

100.75 ± 0.42

87.50

100.62 ± 2.02

Samples

Inter-day precision

AZT

FP

OXY

Conc (µg/mL)

Mean recovery*% ±RSD

Conc (µg/mL)

Mean recovery*% ±RSD

Conc (µg/mL)

Mean recovery*% ±RSD

LLOQ

8.00

104.63 ± 5.57

10.00

106.30 ± 0.53

10.00

111.73 ± 7.63

LQC

24.00

101.20 ± 1.41

30.00

102.76 ± 1.08

30.00

107.09 ± 9.86

MQC

62.50

101.17 ± 0.07

50.00

98.96 ± 2.73

62.50

94.97 ± 6.25

HQC

87.50

101.28 ± 0.18

70.00

99.67 ± 4.60

87.50

98.53 ± 3.71

  1. *Average of three determinations.