chromatogram

American  

[kruh-mat-uh-gram, kroh-muh-tuh-] / krəˈmæt əˌgræm, ˈkroʊ mə tə- /

noun

Chemistry.

1. the column, gel layer, or paper strip on which some or all of the constituents of a mixture have been separated by being adsorbed at different locations.

---

chromatogram British  

/ ˈkrəʊmətəˌɡræm, krəʊˈmæt- /

noun

1. a column or strip of material containing constituents of a mixture separated by chromatography

2. a graph showing the quantity of a substance leaving a chromatography column as a function of time

---

Etymology

Origin of chromatogram

First recorded in 1920–25; chromato- + -gram ¹

Example Sentences

Bottom left, chromatogram of the fraction containing peak I. Bottom right, chromatogram of the fraction containing peak II. e, BN–PAGE of the ACIII–cyt aa3 supercomplex.

From Nature • Apr. 24, 2018

That process makes it easier to identify chemicals, and the mass spectrometer then spits out the different measurements in a computer chart with peaks and valleys called a chromatogram.

From The Verge • Nov. 8, 2017

Scrolling from one chromatogram to the next, he scrutinized the peak representing caffeine.

From Nature • Mar. 14, 2012

Since the metabolic products of each strain of bacteria contain different chem ical compounds, each chromatogram forms an easily identifiable profile.

From Time Magazine Archive

To prepare a bacterial chromatogram, Scientists Alexander and Gould use a pure strain of bacteria, allow them to grow for several hours in a nutrient solution, then extract the metabolic products that have been excreted.

From Time Magazine Archive