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Showing 25 to 36 of 144 entries
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Repeatability and reproducibility of retention data and band profiles on reversed-phase liquid chromatography columns. V. Results obtained with Vydac 218TP C18 columns.

Journal of chromatography. A

Kele M, Guiochon G.
PMID: 11355847
J Chromatogr A. 2001 Apr 13;913(1):89-112. doi: 10.1016/s0021-9673(00)01042-6.

The general goal of this work is to investigate the precision of chromatographic data and to determine which properties of chromatographic columns influence this factor. Chromatographic data were acquired under five different sets of experimental conditions for 30 neutral,...

Theoretical study of incomplete sampling of the first dimension in comprehensive two-dimensional chromatography.

Journal of chromatography. A

Seeley JV.
PMID: 12198965
J Chromatogr A. 2002 Jul 12;962(1):21-7. doi: 10.1016/s0021-9673(02)00461-2.

The process of regularly transferring material from the primary column to the secondary column is critical in producing comprehensive two-dimensional separations. A series of calculations have been performed to determine how sampling period, duty cycle, and sampling phase affect...

Evolution of solid-phase microextraction technology.

Journal of chromatography. A

Lord H, Pawliszyn J.
PMID: 10941672
J Chromatogr A. 2000 Jul 14;885(1):153-93. doi: 10.1016/s0021-9673(00)00535-5.

The main objective of this contribution is to describe the development of the concepts, techniques and devices associated with solid-phase microextraction, as a response to the evolution of understanding of the fundamental principles behind this technique. The discussion begins...

Ion chromatographic system with a novel switching suppression device.

Journal of chromatography. A

Sato S, Ogura Y, Miyanaga A, Sugimoto T, Tanaka K, Moriyama H.
PMID: 12108667
J Chromatogr A. 2002 May 17;956(1):53-8. doi: 10.1016/s0021-9673(02)00445-4.

Ion chromatography (IC) has been a powerful tool for measuring ionic species in environmental samples such as tap, river and drain waters. Suppressor modules (membrane and disposable column types) have been used for reducing the background of a baseline....

Visualization of solute migration in chromatographic columns influence of the frit porosity.

Journal of chromatography. A

Broyles BS, Shalliker RA, Guiochon G.
PMID: 11403461
J Chromatogr A. 2001 May 11;917(1):1-22. doi: 10.1016/s0021-9673(01)00623-9.

The dual-perspective, on-column detection method previously described was used to observe the effects of the inlet frit on the profiles of chromatographic bands. Visualization of bands of iodine was achieved by injecting its dilute solutions in carbon tetrachloride into...

Rapid identification and quantitation of compounds with forensic interest using fast liquid chromatography-ion trap mass spectrometry and library searching.

Journal of chromatography. A

Pihlainen K, Sippola E, Kostiainen R.
PMID: 12779222
J Chromatogr A. 2003 Apr 25;994(1):93-102. doi: 10.1016/s0021-9673(03)00318-2.

A fast liquid chromatography-electrospray tandem mass spectrometric (LC-ESI-MS-MS) method by using a monolithic column, gradient elution and ion trap mass spectrometer was developed for 14 forensically interesting and chemically different compounds. All compounds were eluted within 2.5 min and...

Mobile-phase-viscosity dependence on DNA separation in slalom chromatography.

Journal of chromatography. A

Peyrin E, Guillaume YC, Grosset C, Ravel A, Villet A, Garrel C, Alary J, Favier A.
PMID: 10950270
J Chromatogr A. 2000 Jul 21;886(1):1-7. doi: 10.1016/s0021-9673(00)00510-0.

Slalom chromatography (SC) is an alternative chromatographic procedure for the separation of relatively large double-stranded DNA molecules and is based on a new principle. The retardation of the DNA fragments from the cleavage of the Lambda DNA by the...

15th International Symposium on Column Liquid Chromatography. Part II. Basel, June 3-7, 1991.

Journal of chromatography

[No authors listed]
PMID: 1353502
J Chromatogr. 1992 Feb 28;593(1):1-378.

No abstract available.

Separation efficiency of slurry-packed liquid chromatography microcolumns with very small inner diameters.

Analytical chemistry

Karlsson KE, Novotny M.
PMID: 3232810
Anal Chem. 1988 Sep 01;60(17):1662-5. doi: 10.1021/ac00168a006.

No abstract available.

Numerical and experimental investigation of analyte breakthrough from sampling loops used for multi-dimensional liquid chromatography.

Journal of chromatography. A

Moussa A, Lauer T, Stoll D, Desmet G, Broeckhoven K, Dalziel J.
PMID: 32797812
J Chromatogr A. 2020 Aug 30;1626:461283. doi: 10.1016/j.chroma.2020.461283. Epub 2020 Jun 01.

Two-dimensional liquid chromatography is increasingly being used to address challenging separations in fields ranging from pharmaceutical analysis to the food industry. A significant impediment to development of more methods is the lack of a complete theoretical foundation upon which...

XCMS-MRM and METLIN-MRM: a cloud library and public resource for targeted analysis of small molecules.

Nature methods

Domingo-Almenara X, Montenegro-Burke JR, Ivanisevic J, Thomas A, Sidibé J, Teav T, Guijas C, Aisporna AE, Rinehart D, Hoang L, Nordström A, Gómez-Romero M, Whiley L, Lewis MR, Nicholson JK, Benton HP, Siuzdak G.
PMID: 30150755
Nat Methods. 2018 Sep;15(9):681-684. doi: 10.1038/s41592-018-0110-3. Epub 2018 Aug 27.

We report XCMS-MRM and METLIN-MRM ( http://xcmsonline-mrm.scripps.edu/ and http://metlin.scripps.edu/ ), a cloud-based data-analysis platform and a public multiple-reaction monitoring (MRM) transition repository for small-molecule quantitative tandem mass spectrometry. This platform provides MRM transitions for more than 15,500 molecules and...

Twins derivatization-based LC-MS: a promising quantitative tool for metabolomic analysis.

Bioanalysis

Li W, Zhang Z, Xu F.
PMID: 30033740
Bioanalysis. 2018 Aug 01;10(15):1161-1163. doi: 10.4155/bio-2018-0122. Epub 2018 Jul 23.

No abstract available.

Showing 25 to 36 of 144 entries