Gradient Curves Equations
The following equations describe the Gradient Curve profiles generated by many Dionex gradient pumps, and by the Eluent Generator.
For convex gradients:
where: k = 0, ¼, ½, ¾, 1 for curve numbers 1, 2, 3, 4, 5 respectively
For concave gradients:
Where: k = ¾, ½, ¼, 0 for curve numbers 6, 7, 8, 9 respectively
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Ve |
Current eluent value |
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Vf |
Eluent value at the previous step time |
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Vt |
Eluent value at the next step time |
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Te |
Current elapsed time |
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Tf |
Time at the beginning of the gradient step |
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Tt |
Time at the ending of the gradient step |
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k |
Parameter that is changed to produce different curve number results |