stationary phase


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sta·tion·ar·y phase

1. the period in the course of growth of a bacterial culture during which the multiplication of the organisms becomes gradually less and the bacteria undergoing division are in equilibrium with those dying;
2. referring to the usually solid, nonmobile component in partition chromatography.

stationary phase

a period in the growth of a culture of BACTERIA where the number of CELLS dividing is equal to the number dying. The growth of the bacterial population therefore ceases and the GROWTH CURVE levels off.
References in periodicals archive ?
Common Chromatography Techniques Name Mixture Stationary Phase Gas Gas or Vapor Liquid (held by solid) Partition Liquid or dissolved solids Liquid (held by solid) Paper Liquid or dissolved solids Liquid (held by solid) Adsorption Gas or Vapor Solid Adsorption Liquid or dissolved solids Solid Ion exchange Ions in solution Solid Moving Name Phase Gas Gas Partition Liquid Paper Liquid Adsorption Gas Adsorption Liquid Ion exchange Liquid
The stationary phase effect appears to be higher in the case of S-EA copolymers, which are more polar than the S-EMA ones.
"In stationary phase, Dps is one of the most abundant proteins in the bacteria," notes Steven E.
Determination of the enantiomers of bunolol in human urine by high-performance liquid chromatography on a chiral AGP stationary phase and identification of their metabolites by gas chromatography-mass spectrometry.
Rasheed, Zwitterionic Ion Chromatography of Dansyl Amino Acids with 4-Vinylbenzyl Dimethyl Ammonio Pentanesulfonate as Stationary Phase, Asian J.
A global analysis of the 1D-TLC results shows that, with the MP-5c, a suitable balance of the interactions among the solvent system, the stationary phase (partially masked by the N[H.sub.4]OH), and the different metabolites was obtained, allowing for their gradual separation.
Compared with batch growth, continuous culture growth in good condition And the Cells is in the stationary phase
By modifying them onto the surface of silica gel, calixarenes have been widely studied as solid phase extraction and stationary phase materials.
He also worked on techniques that used chromatography to separate chemical substances, which worked by passing a mixture of a chemical and a "mobile phase" through a "stationary phase".
But it is known that cultures of Lyme disease bacteria, Borrelia burgdorferi, can enter a stationary phase in which many of the cells divide slowly or not at all.
Piroxicam, 5-hydroxypiroxicam and internal standard (I.S) were separated using a CNW C18 RP (250 mm x 4.6 mm, 5 um) column as a stationary phase and mixture of acetonitrile and aqueous solution of triflouro acetic acid (0.05%) in the ratio of 62:38 was used as a mobile phase.