10:32 Dec 27, 2019 |
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English to Polish translations [PRO] Science - Chemistry; Chem Sci/Eng / HPLC | |||||||
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2 | minimum do minimum |
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Valley to valley integration method |
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Discussion entries: 1 | |
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minimum do minimum Explanation: 2.9.1 Valley-to-Valley Event The Valley-to-Valley event directs ApexTrack to replace the valley (V) boundaries and crossing points (X) with baseline (B) boundaries. Thus if a peak cluster contains only V boundaries, this event will transform it into a series of individual, baseline-resolved peaks. The time of a B has the same time as that V it replaces. The Valley-to-Valley event is applied only after all peaks, baselines, and boundaries have been established. Shoulder and round boundaries are generally unchanged by the Valley-to-Valley event. Figure 2-28 shows the new baseline boundaries that resulted from the Valley-to-Valley event. Note that the shoulder and round boundaries are unchanged. http://icob.sinica.edu.tw/pubweb/data/Empower 2.pdf?locale=z... |
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Reference: Valley to valley integration method Reference information: Valley to valley sets start and stop points at the valley between the peaks, thus interpreting each peak separately. This method consistently produces negative errors for both peaks and is, therefore, seldom an appropriate integration method. However, if a known baseline disturbance is present under a set of eluted peaks, valley-to-valley may be suitable. In some gradient runs, there may be a small, broad rise in the baseline of blank runs that is consistent enough to allow valley-to-valley integration. In this case, however, the valleys between peaks should reach nearly to the baseline extended from before to after the peak group. - https://isn.page.link/kZqd |
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