Skip to main content

Table 2 Signal intensity and S/N ratio of synthetic matrix material with low molecular weight analytes

From: Benzimidazole, coumrindione and flavone derivatives as alternate UV laser desorption ionization (LDI) matrices for peptides analysis

Compounds

Bradykinin a

Renin substrate tetra-decapeptide a

S/N

Sig. Int.

S/N

Sig. Int.

1

711

56530

551

47162

2

540

23276

423

23276

3

547

61687

228

23778

4

447

64184

205

50958

5

965

179163

579

39417

6

612

73058

450

40258

7

403

98986

586

132521

8

710

105850

689

68272

9

148

254785

435

32688

10

250

38696

411

59285

11

568

129858

361

80878

12

524

157277

360

144048

13

548

58187

620

105141

14

520

131703

668

127967

15

612

17858

402

55811

16

369

24724

463

65700

17

250

57522

432

81912

18

332

101983

299

61957

19

294

55402

200

13615

20

286

13022

514

14110

21

244

53297

446

36294

22

427

88683

642

101135

23

455

85541

650

53205

24

328

11451

519

81163

25

850

16992

574

85517

26

402

14593

436

79334

27

370

26798

444

66542

28

202

10398

221

13736

29

727

115238

309

124664

30

708

10452

125

16030

31

806

89386

66

18759

HCCA

832

86824

792

147702

  1. a 25pM.