Table 1.
Parameters of the regression equations used for calibration of six UDP-sugars
| Parameters for linear or quadratic regressiona | ||||
|---|---|---|---|---|
| Compound | a | b | c | R 2 |
| UDP-Ara | 0 | 135,512 | 7,677.6 | 0.9941 |
| UDP-Xyl | 0 | 152,814 | 7,307.8 | 0.9888 |
| UDP-GalA | 0 | 136,180 | 7,096.4 | 0.9886 |
| UDP-Gal | −5,530.2 | 177,542 | 13,157 | 0.9960 |
| UDP-Glc | 0 | 91,908 | 29,314 | 0.9763 |
| UDP-GlcA | 0 | 139,121 | 6,810.7 | 0.9880 |
aCalibration equations fulfilling linear (first order) or quadratic (second order) regression analysis according to the Equation A = ax 2 + bx + c, A peak area, x analyte concentration