coelute

coelute

[′kō·ə‚lüt]
(analytical chemistry)
In chromatography, two or more chemical compounds that do not separate.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Peaks are numbered 1-7 and were shown to coelute with (1) ursolic acid, (2) epicatechin, (3) caffeic acid, (4) rutin, (5) quercetin, (6) naringenin, and (7) kaempferol.
Since [sup.13]C-containing peptides coelute with peptides with natural isotopic distribution, both endogenously acetylated and [sup.13]C-acetylated peptides can be fragmented together using a slightly wider isolation window (3.5 m/z compared to 2.0 m/z) than that for standard analyses.
Glycated HbS fractions coelute with [HbA.sub.2] on HPLC; as a result, the [HbA.sub.2] fraction is overestimated.
BDE-153, however, is not known to coelute with other analytes in the method applied by Laboratory 2, and BDE-153 concentrations were almost 2-fold higher in December than in September for three family members (Table 1).
These two compounds were not observed in SRM 3083 by GC-ECD and did not coelute with other PCB congeners present in SRM 3083 on a 5% phenyl methylpolysiloxane phase or a relatively non-polar phase (described above in Sec.
The chromate, iodide, and chloride peaks were found to coelute. However, the use of other wavelengths can spectrally resolve these three ions.
Some products may contain GOS disaccharides that coelute with the lactose in the reference method, leading to an overestimation of lactose and consequently an underestimation of GOS.