peak width

peak width

[′pēk ′width]
(analytical chemistry)
In a gas chromatogram (plot of eluent rise and fall versus time), the width of the base (time duration) of a symmetrical peak (rise and fall) of eluent.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The peak height, peak width at half height, peak area, and molecular weight between cross-links calculated from the storage modulus for the neat resin, as well as the blends in the rubbery plateau region, are given in Table 2.
Compared with the virgin POM, the exothermal peak of POM/PA moves ahead and the peak width becomes more narrow with the increase of PA content, which indicates that the addition of PA can reduce the induction time of crystallization, advance the crystallization process of POM, and improve the crystallization growth rate.
Performance of charge variant analysis and aggregate analysis of bevacizumab Retention Relative Time (min) Peak Area (%) SCX Analysis Average 12.515 85.01 of Bevacizumab (n=10) % RSD 0.16 0.30 SEC Analysis Average 9.554 96.57 of Bevacizumab (n=10) % RSD 0.03 0.29 Peak Width Asymmetry at 50% (EP) Height (min) SCX Analysis Average 0.302 1.81 of Bevacizumab (n=10) % RSD 5.00 1.48 SEC Analysis Average 0.259 1.08 of Bevacizumab (n=10) % RSD 0.25 1.00 Table 2.
In this research, after radiation, two C-H stretching vibrations became merged and appeared as a single vibration in all groups; this was due to the increased peak width. The shift of this band could be attributed to the weakening of hydrogen bonds.
Peak width in multifrequency tympanometry and endolymphatic hydrops revealed by magnetic resonance imaging.
(3) The peak width [DELTA](1/[T.sup.[+ or -].sub.0.5]).sup.KH] = 1/[T.sup.- .sub.0.5] = - 1/[T.sup.+.sub.0.5] defined as the difference between the inverse temperatures corresponding to the peak half-height level 0.5 [[delta].sup.KH.sub.rmax slightly decreased.
CS exhibited a high speed of decomposition between 271.92 and 330[degrees]C, reaching the maximum at 307.49[degrees]C with the peak width of 37.95[degrees]C (Figure 4(a)).
The groover interpolates square waves with a peak width [w.sub.p], valley width [w.sub.v], and height h.
In RQCC method, the new QBOC (Quadratic Binary Offset Carrier) auxiliary signal is reconstructed by using the characteristics of same autocorrelation function peak width between the auxiliary signal and BOC signals to solve the problem that the side peaks restrained weakly, which is caused by different correlation function peak width between the PRN auxiliary signal and BOC signals [10].On the basis of the shifted correlation function phase, by introducing QBOC auxiliary signal and adding the shifted results to eliminate the side peaks, these methods can solve some multipeak problems, but they cannot restrain the multipeak problem in different modulation coefficient and meanwhile ensure main peak sharply.
We set a threshold [[rho].sub.p] to measure the peak width after PC as follows:
Each sample peak duration was calculated by taking the difference of the two lower points, resulting in an upper limit of around 10 seconds and an average peak width lasting between 5 and 6 seconds.
The half peak width increased and crystalline growth rate decreased.