chromatogram

noun chro·mato·gram \ krō-ˈma-tə-ˌgram , krə- \
|Updated on: 12 Jun 2018

Definition of chromatogram

1 : the pattern formed on an adsorbent medium by the layers of components separated by chromatography
2 : a time-based graphic record (as of concentration of eluted materials) of a chromatographic separation

Recent Examples of chromatogram from the Web

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Origin and Etymology of chromatogram

borrowed from German Chromatogramm, from chromato- chromato- + -gramm -gram
Note: Term introduced by the Russian botanist Mikhail Semyonovich Tsvet (Mixail Semënovič Cvet, in German publications "M. Tswett," 1872-1919) in "Physikalisch-chemische Studien über die Chlorophyll. Die Adsorptionen," Berichte der Deutschen Botanischen Gesellschaft, Band 24 (1906), p. 322: "Wird eine petrolätherishe Chlorophyllösung durch eine Säule eines Adsorptionsmittels durchfiltriert…, so werden die Farbstoffe gemäss der Adsorptionsreihe von oben nach unten in verschieden gefärbten Zonen auseinandergelegt, indem die stärker adsorbierten Farbstoffe die schwächer zurückgehaltenen weiter nach unten verdrängen….Wie die Lichtstrahlen im Spektrum, so werden in der Calciumkarbonatsäule die verschiedenen Komponenten eines Farbstoffgemisches gesetzmässig auseindergelegt, und lassen sich darin qualitativ und auch quantitativ bestimmen. Ein solches Präparat nenne ich ein Chromatogramm und die entsprechende Methode, die chromatographische Methode." ("If a solution of chlorophyll in petroleum ether is filtered through a column of an adsorbent…then the pigments are dispersed, according to the adsorption series, from top to bottom in differently colored zones, as the more strongly adsorbed pigments displace further downward the more weakly retained ones…Like light rays in a spectrum, so the different components of a mixture of pigments are dispersed in the calcium carbonate column following a set pattern and can be determined both qualitatively and quantitatively. I call such a preparation a chromatogram and the corresponding method, the chromatographic method."


Medical Dictionary

chromatogram

noun chro·mato·gram \ krō-ˈmat-ə-ˌgram, krə- \

medical Definition of chromatogram

1 : the pattern formed on the adsorbent medium by the layers of components separated by chromatography
2 : a time-based graphic record (as of concentration of eluted materials) of a chromatographic separation

Learn More about chromatogram


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