Skip to main content

Table 5 Summary statistics of ion ratio monitoring

From: An LC–MS-based designated comparison method with similar performance to the Lp(a) reference measurement procedure to guide molar Lp(a) standardization

Reference Measurement Procedure

 

GISSTTVTGR Qualifier 2

GISSTTVTGR Qualifier 1

GISSTTVTGR-SIL Qualifier 2

GISSTTVTGR-SIL Qualifier 1

LFLEPTQADIALLK Qualifier 1

LFLEPTQADIALLK Qualifier 2

LFLEPTQADIALLK-SIL Qualifier 1

LFLEPTQADIALLK-SIL Qualifier 2

TPENYPNAGLTR Qualifier 1

TPENYPNAGLTR Qualifier 2

TPENYPNAGLTR-SIL Qualifier 1

TPENYPNAGLTR-SIL Qualifier 2

Batch 1

Average ion ratio

39

59

34

57

128

14

133

13

34

19

35

19

CV (%)

8.0

7.7

10.4

9.8

9.0

7.3

8.1

12.8

38.1

27.2

25.3

22.4

Batch 2

Average ion ratio

38

59

34

57

129

14

133

13

32

19

33

19

CV (%)

8.5

8.3

10.8

9.3

10.5

7.8

8.3

12.6

34.0

24.4

24.7

21.9

Designated Comparison Method

 

GISSTVTGR Qualifier 1

GISSTVTGR Qualifier 2

GISSTTVTGR-SIL Qualifier 1

GISSTTVTGR-SIL Qualifier 2

LFLEPQADIALLK Qualifier 1

LFLEPTQADIALLK Qualifier 2

LFLEPTQADIALLK-SIL Qualifier 1

LFLEPTQADIALLK-SIL Qualifier 2

Batch 1

Average ion ratio

31

50

30

59

15

27

14

59

CV (%)

9.2

14.2

16.7

5.1

11.8

6.9

5.3

8.7

Batch 2

Average ion ratio

33

56

33

61

15

29

15

45

CV (%)

11.9

13.3

13.3

7.9

10.6

10.2

8.7

24.6

Batch 3

Average ion ratio

33

53

31

59

15

30

14

50

CV (%)

17.8

18.5

12.0

8.9

26.0

18.6

8.5

16.6

Batch 4

Average ion ratio

34

54

31

60

15

30

14

51

CV (%)

21.2

19.9

11.7

9.7

25.1

18.0

9.0

15.9

Batch 5

Average ion ratio

35

53

33

58

15

29

14

48

CV (%)

22.1

20.7

17.6

11.7

22.6

20.9

10.8

21.1

Batch 6

Average ion ratio

36

52

33

57

15

29

14

47

CV (%)

22.8

19.6

16.8

11.8

21.7

19.3

10.4

19.8