Table 3 Quantitative NMR performance for monosaccharide standards: reference value (determined by weighting), average concentration by NMR measurements and associated precision (standard deviation, SD %), bias (%), accuracy (%), and recovery (%)

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

Compound

Reference value (ppm)

Average (ppm)

SD (%)

BIAS (%)

Accuracy (%)

Recovery (%)

Glucose

98.2

109.7

2.5

11.7

11.7

111.7

493.9

537.6

11.6

8.8

8.9

108.8

986.2

1088.0

22.6

10.3

10.3

110.3

Fructose

97.2

97.0

1.5

−0.2

0.4

99.8

489.1

494.8

7.4

1.2

1.2

101.2

976.7

1032.0

2.8

5.7

5.7

105.7

Galactose

99.4

98.8

3.5

−0.6

1.1

99.4

488.5

510.5

12.0

4.5

4.5

104.5

975.5

1009.5

14.9

3.5

3.5

103.5

Ribose

96.1

102.8

0.7

5.1

5.1

105.1

483.7

501.0

7.1

1.8

1.8

101.8

966.0

1021.5

16.4

3.9

3.9

103.9

Arabinose

94.5

94.1

1.9

-0.5

0.7

99.5

475.5

478.1

3.7

−0.5

0.6

99.5

949.5

972.7

7.3

2.4

5.0

102.4

Rhamnose

97.1

103.5

1.8

3.2

3.2

103.2

488.6

499.1

7.1

1.9

2.0

102.0

975.6

991.1

6.8

1.6

1.4

101.6

Fucose

97.7

104.2

2.0

6.5

6.5

106.5

491.4

509.9

6.9

3.8

3.8

103.8

981.1

1013.3

12.3

3.3

3.3

103.3

Mannose

99.5

103.8

2.1

4.4

4.4

104.4

500.5

512.4

3.9

2.4

2.4

102.4

999.5

1022.8

2.0

2.3

2.3

102.3

Xylose

95.3

97.5

2.3

2.4

2.4

102.4

479.3

485.1

18.9

1.2

1.4

101.2

957.1

949.3

18.1

-0.8

0.9

99.2

Galacturonic acid

109.5

112.5

2.3

3.0

3.0

103.0

550.0

569.6

9.9

3.6

3.6

103.6

1098.3

1124.2

12.6

2.4

2.4

102.4

Glucuronic acid

99.3

102.5

1.3

3.3

3.3

103.3

499.6

516.9

7.5

3.5

3.5

103.5

997.6

1030.7

17.2

3.3

3.3

103.3

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