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Table 1 Summary of the chosen Infliximab peptides with their corresponding precursor and product m/z values and their optimized collision energy

From: Highly sensitive therapeutic drug monitoring of infliximab in serum by targeted mass spectrometry in comparison to ELISA data

Peptide sequence

Precursor (m/z)

Product (m/z)

Opt. CE (V)

SINSATHYAESVK(+ 3)

469.568

467.735

5.4

SINSATHYAESVK(+ 3)

469.568

503.254

9.4

SINSATHYAESVK(+ 3)

469.568

546.77

8.4

SINSATHYAESVK(+ 3)

469.568

603.791

7.4

SINSATHYAESVK(+ 3)

469.568

696.356

15.4

SINSATHYAESVK (heavy)(+ 3)

472.239

471.742

5.4

SINSATHYAESVK (heavy)(+ 3)

472.239

507.261

9.4

SINSATHYAESVK (heavy)(+ 3)

472.239

550.777

8.4

SINSATHYAESVK (heavy)(+ 3)

472.239

607.798

7.4

SINSATHYAESVK (heavy)(+ 3)

472.239

704.37

15.4

ASQFVGSSIHWYQQR(+ 3)

598.628

631.307

9.2

ASQFVGSSIHWYQQR(+ 3)

598.628

680.841

11.2

ASQFVGSSIHWYQQR(+ 3)

598.628

754.376

10.2

ASQFVGSSIHWYQQR(+ 3)

598.628

780.379

19.2

ASQFVGSSIHWYQQR(+ 3)

598.628

917.438

20.2

ASQFVGSSIHWYQQR (heavy)(+ 3)

601.964

636.311

9.2

ASQFVGSSIHWYQQR (heavy)(+ 3)

601.964

685.846

11.2

ASQFVGSSIHWYQQR (heavy)(+ 3)

601.964

759.38

10.2

ASQFVGSSIHWYQQR (heavy)(+ 3)

601.964

790.387

19.2

ASQFVGSSIHWYQQR (heavy)(+ 3)

601.964

927.446

20.2