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The invention provides a method for calculating chromatographic peak widths under different gradient elution conditions according to a non-linear solvent intensity model and a theoretical plate quantity or according to the non-linear solvent intensity model and a peak width change model under isocratic ...
peak widths are narrower than with conventional HPLC due to the use of a 1.7 μm particle size. The average chromatographic peak width during this analysis was approximately 4 s at 10% height and 2 s at half height but even with these peak widths, good peak...
Overall, DMA is not necessarily attracting much more water onto the Arrow coating, except if the coating is damaged like in the case of PDMS/TEOS/ZIF-8, where the water peak width was 3.4 min without DMA and with DMA it was 4 min. In view of these results presented above, a few ...
Peak Integration: Sigma left / Sigma right.These parameters determine, which data left and right of the signal apex are used to calculate the fit. 1 sigma is equivalent to the sigma (half width) of a Gaussian fit resembling the signal. The value you enter is a multiplier for this sigma ...
Abbreviations CHICKN: Chromatogram HIerarchical Compressive K-means with Nyström approximation; CKM: Compressive k-means; DB: Davies–Bouldin index; RT: Peak Retention Time difference; DIA: Data Independent Acquisition; Ecoli-DIA: Dataset resulting from the analysis of an Escherichia coli sample in...
4 and Fig. S3, we used the Gun correlation except the mobile flow rates equal 0.05 mL min−1, 0.1 mL min−1 and 0.2 mL min−1 for which the better prediction of the peak width gives Chung and Wen correlation. Similar results as here were also observed in [39,40]. The finale...
The areas of the PCP methyl ether and DBP peaks was calculated by multi- plying the peak height by the width at half height. If A is area of PCP methyl ether, As area of DBP, C a slope of calibt·ation curve, TV weight of sample taken, and Ws weight of DBP taken for determina...
) = IH standard at 0 min, () = IH standard after 180 min of acid degradation. 3.4. Analysis of marketed tablet formulation The marketed formulation IVABRAD 5 and 7.5 and IVABID 5 and 7.5 when analysed in triplicate using the developed method, showed only one peak at Rf value of 0.36 ...
(1–2 µm in width) that allows the liquid phase to pass through while the chromatographic material (20–30 µm) remains in the tip. It also reduces dead volume since no filter is needed. In addition, sampling is faster and cuts down on samples lost [26]. Recently, the PT-SPE ...