Table 4 Intra-day and inter-day repeatability of the method, calculated on monosaccharide standard mixtures at different concentration levels

From: Development of a 1H qNMR method for the identification and quantification of monosaccharides in dietary fibre fractions

Compounds

Level (ppm)

Intra-day repeatability (RSD %)

Horwitz ratio for intra-day repeatability

Inter-day repeatability (RSD %)

Horwitz ratio for inter-day repeatability

Glucose

100

2.3

0.9

2.2

0.4

500

2.1

0.5

3.1

0.8

1000

2.1

0.6

2.3

0.6

Fructose

100

1.5

0.6

1.9

0.4

500

1.5

0.4

1.8

0.4

1000

1.8

0.7

3.3

0.9

Galactose

100

3.6

1.4

4.3

0.8

500

2.4

0.6

2.4

0.6

1000

2.8

0.4

3.9

1.0

Ribose

100

0.7

0.3

2.0

0.4

500

1.9

0.3

2.0

0.5

1000

1.6

0.4

0.6

0.6

Arabinose

100

2.0

0.7

2.5

0.5

500

0.8

0.2

1.1

0.3

1000

0.8

0.2

2.8

0.7

Rhamnose

100

1.7

0.7

2.5

0.5

500

1.4

0.3

1.5

0.4

1000

0.7

0.2

2.8

0.7

Fucose

100

2.0

0.7

1.7

0.3

500

1.4

1.8

2.4

0.6

1000

1.2

0.3

2.3

0.6

Mannose

100

2.0

0.8

10.6

1.9

500

0.8

0.2

2.6

0.6

1000

0.2

0.1

2.5

0.7

Xylose

100

2.4

0.9

3.7

0.7

500

3.9

0.9

3.4

0.8

1000

1.9

0.5

3.5

0.9

 Galacturonic acid

100

2.0

0.4

2.9

0.6

500

1.7

0.4

2.2

0.5

1000

1.1

0.3

3.6

1.0

Glucuronic acid

100

1.3

0.3

2.7

0.5

500

1.5

0.2

4.3

1.0

1000

1.7

0.3

6.4

1.7

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