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Table 3 Reliability data of the method for the determination of eicosanoids in exhaled breath condensate.

From: Method optimization and validation for the simultaneous determination of arachidonic acid metabolites in exhaled breath condensate by liquid chromatography-electrospray ionization tandem mass spectrometry

Analyte

Intra-day precision

Inter-day precision

Accuracy

Calibration (Y = ax+b)

 

Q1

Q2

Q1

Q2

relative recovery (%)

a (x10e-3)

b (x10e-3)

 

RSD(%)

RSD(%)

RSD(%)

RSD(%)

mean

range

  

8-iso-PGF 2alfa

5

5

16

11

94

88–107

0,098

2,21

11-β-PGF 2alfa

4

2

10

8

102

97–108

0,084

0,358

PGF 2alfa

2

2

13

8

102

99–104

0,254

0,314

PGE 2

4

2

5

6

99

96–107

0,628

1,92

PGD 2

4

2

4

6

102

94–112

0,345

0,089

13,14-dihydro-15-keto-PGE 2

2

2

8

8

94

90–100

1,46

-0,245

13,14-dihydro-15-keto-PGD 2

2

3

9

8

104

99–110

1,04

4,88

LTE 4

6

4

10

7

115

96–133

0,238

1,3

Delta 12-PGJ 2

5

5

13

11

105

98–120

1,09

1,2

PGJ 2

5

6

4

8

110

102–119

0,213

1,17

LTB 4

5

5

9

11

110

97–117

0,19

1,4

15-desoxy-delta12,14-PGJ 2

5

5

16

12

159

135–179

0,739

5,46

  1. Q1 and Q2 represents the low and the high concentration level respectively, with 50 pg/mL and 500 pg/mL each analyte.