Table 3 Optimized multiple reaction monitoring (MRM) method pairs and parameters for eicosanoids.

From: Circulating exosomes may identify biomarkers for cows at risk for metabolic dysfunction

Endogenous lipids

Q1 (Positive)

Q3 (Positive)

Q1 (Negative)

Q3 (Negative)

PGE2

  

351.1

271.1

PGF

  

353.2

309.0

PGD2

  

351.0

271.3

PGFM

  

353.2

113.0

TXB2

  

369.0

169.1

PGF-EA

380.4

62.0

  

Internal standards

Q1 (Positive)

Q3 (Positive)

Q1 (Negative)

Q3 (Negative)

PGE2-d4

  

355.1

319.0

PGF-d4

  

357.2

313.0

PGD2-d4

  

355

193.2

PGFM

    

PGF-EA-d4

384.4

62.0