Table 1 Details of the MS/MS parameters for analysis of the compounds.

From: Method development and validation of ten pyrethroid insecticides in edible mushrooms by Modified QuEChERS and gas chromatography-tandem mass spectrometry

Compounds

Molecular formula

Molecular weight

Precursor ion (m/z)

Product ion (m/z)

Q/q a

Collision energy (v)

Dwell time (s)

Retention time (min)

Bifenthrin

C23H22ClF3O2

422.9

181.2

166.2

Q

10

24

11.54

181.2

165.2

q

20

24

Fenpropathrin

C22H23NO3

349.4

207.9

181.0

Q

5

24

11.63

  

264.9

210.0

q

10

24

 

Cyhalothrin

C23H19ClF3NO3

449.9

197.0

141.0

Q

10

24

12.01, 12.13

  

197.0

161.0

q

5

24

Permethrin

C21H20Cl2O3

391.3

183.1

168.1

Q

15

18

12.66, 12.74

  

183.1

153.0

q

10

18

Cyfluthrin

C22H18Cl2FNO3

434.3

226.0

206.0

Q

18

15

13.05, 13.11, 13.18

  

198.9

170.1

q

18

25

Cypermethrin

C22H19Cl2NO3

416.3

163.0

91.0

Q

18

10

13.29, 13.36, 13.44

   

163.0

127.0

q

18

5

Flucythrinate

C26H23F2NO4

451.5

156.9

107.1

Q

18

15

13.39, 13.53

   

198.9

157.0

q

18

15

Tau-fluvalinate

C26H22ClF3N2O3

502.9

250.0

55.0

Q

37

40

14.19, 14.24

   

181.0

152.0

q

37

40

Fenvalerate

C25H22ClNO3

419.9

167.0

125.1

Q

37

5

14.02, 14.20

   

224.9

119.0

q

37

15

 

Deltamethrin

C22H19Br2NO3

505.2

252.9

93.0

Q

37

15

14.73

   

250.7

172.0

q

37

5

 
  1. a Q is quantification ion transition and q is confirmation ion transition.