排除极限 Vh,max,exclusion limit 拖尾因子 T,tailing factor 柱外效应 extra-column effect 管壁效应 wall effect 间隔臂效应 spacer arm effect 边缘效应 edge effect 斑点定位法 localization of spot 放射自显影法 autoradiography 原位定量 in situ quantitation 生物自显影法 bioautography 归一法 normalization meth...
正常色谱峰近似于对称形正态分布曲线(高斯Gauss曲线) 不对称色谱峰有两种:前延峰(leading peak)和拖尾峰(tailing peak)。 前者少见。 色谱图 ★拖尾因子(tailing factor,T),用以衡量色谱峰的对称性。也称为对称 因子(symmetry factor)或不对称因子(asymmetry factor)。《中国药典》 规定T应为0.95～1.05。T<0.95...
Although peak tailing in analytical (i.e., linear) chromatography is often considered to be associated merely with slow mass transfer kinetics, we show that it results rather from the use of too short a column, at too high a mobile phase velocity, under such conditions that the mass ...
补充资料:峰不对称度 分子式:CAS号:性质:亦称拖尾因子(tailing factor),为衡量正常色谱峰与不正常色谱峰的指标,用T表示,其定义为:T=W0.05h/2d1。峰不对称度在0.95～1.05之间为对称峰;小于0.95为前沿峰;大于1.05为拖尾峰。 说明:补充资料仅用于学习参考,请勿用于其它任何用途。
(in µmol/mL) of each oligosaccharide in the chromatogram. MW is the molecular weight of each oligosaccharide; V is the volume to which the original sample weight was diluted (in mL); m is the weight of sample diluted to...
The program uses an algorithm involving a Gaussian and a tailing term for fitting and resolving peaks obtained from spectrometers using germanium detectors. Gamma-ray energies, intensities and absolute photon emission rates can be determined. A graphical output showing the original and fitted data can...
14.6. Validated methods, specified chromatographic conditions and good chromatography practices should facilitate obtaining symmetrical peaks. Where fronting, tailing, split peaks or other types of peaks are observed, these should be investigated, the root cause identified and appropriate CAPA taken. ...
The classical way to express resolution can not be used as measure for the separation in the case of tailing peaks or peaks with strongly varying peak heights. A number of different expressions for resolution are evaluated with respect to peak overlap, i.e. the classical resolution, resolution ...
aIn the final analy sis of life I have come to the conclusion all that really matters are people and nature. 在生活决赛analy sis我得出了结论全部真正地事态是人们和自然。[translate] a. Let's go . 我们去[translate] atailing lug 盯梢把手[translate] ...
(at least 3 min to avoid pairing a repeated feature from a large tailing peak) and has the same number of fragments. A pair of decoys is generated for the paired targets by keeping the same precursor properties and swapping them/zvalues of 40–60% of the fragments randomly chosen from...