Sentence examples for chromatography i from inspiring English sources
Depending upon the analytes of interest, gas chromatography (i.e. for volatile species) or liquid chromatography (i.e. for polar organics or large biomolecules) can be utilized.
The series of star-shaped PLA's have been analyzed by LC-CC as well as by two-dimensional (2D) chromatography (i.e. LC-CC versus size exclusion chromatography (SEC)) with regard to possible structural imperfections.
The gas sampling provides quantitative analysis of stable species by means of gas chromatography (i.e. CH4, O2,CO,CO2, H2O,H2, C2H6, C2H4), and the fiber-optic probe enables in situ detection of transient LIF-active species, demonstrated here for CH2O.
However, even under conditions of the conventional capillary gas liquid chromatography (i.e. at column pressures under 5 atm) carrier gas (its nature and pressure) significantly influences retention and separation of the analyzed compounds.
First, the protein was purified by Ni2+ chelation chromatography (I), then further purified using size exclusion gel filtration (II).
Total cellular lipids were extracted by the method of Bligh and Dyer [39] and separated by two-dimensional thin layer chromatography (I: chloroform/methanol/25% aqueous ammonium hydroxide, 90∶54∶7; II: chloroform/acetone/methanol/acetic acid/water, 50∶20∶10∶10∶5).
The chloroform extract was fractionated by using various chromatography techniques, i.e., Sephadex LH-20 column chromatography and preparative thin layer chromatography and six compounds were isolated (1 6).
The structural heterogeneity of isolated compounds was characterized by high pressure liquid chromatography, MS ESI and NMR spectroscopic analyses.
A nLC (nanoliquid chromatography)–ESI (electrospray ionization)–MS/MS (mass spectrometry/mass spectrometry) mass spectrometry analysis identified all the 12 flagellin proteins in three glycosylated polypeptide bands resolved by one-dimensional denaturing polyacrylamide gel electrophoresis and 10 of them in 21 spots obtained by means of two-dimensional electrophoresis of flagellar extracts.
Therefore, many sensitive methods for detection of amino acids have been developed based on chemical modifications of amino acids for fluorometry [ 9– 12] or MS [ 13– 15] before amino acid separation by liquid chromatography (LC), i.e., pre-column derivatization.
For LC (liquid chromatography -ESI (elechromatography -ESon) MS/MS (tandem MS) non-reducIng SDS gelectrosprayionizationIMS/MSal Protandemtain (TherMS Scientific).
