Results 261 to 270 of about 363,714 (313)

High-Performance Liquid Chromatography

2001
Chromatography is a general term applied to a wide variety of separation techniques based on the sample partitioning between a moving phase, which can be a gas, liquid, or supercritical fluid, and a stationary phase, which may be either a liquid or a solid.
John G. Dorsey, Thomas H. Stout
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High-performance liquid chromatography of porphyrins

Journal of Chromatography B: Biomedical Sciences and Applications, 1988
Techniques for the analysis of porphyrins in the biomedical fields are reviewed. The emphasis is on high-performance liquid chromatography and its aspplications in: (1) the quantitative analysis of porphyrins in blood, urine and faeces; (2) qualitative porphyrin profiles in normal subjects and in the porphyrias; (3) assay of haem biosynthetic enzyme ...
T.J. Peters, Famei Li, Chang Kee Lim
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High performance “ionic liquid” chromatography

Chemical Communications, 2011
We firstly developed high performance liquid chromatography methods with "ionic liquids" as eluents (HPILC) and successfully demonstrated the analysis of various biopolymers including scarcely soluble highly polymerized cellulose by means of HPILC with highly polar ionic liquid.
Hiroyuki Ohno, Atsushi Tsukamoto, Kosuke Kuroda, Yukinobu Fukaya   +3 more
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High-performance liquid chromatography of insulin

Journal of Chromatography A, 1984
The elution behaviour of a selection of sequence variant and modified insulins has been compared on a C18 reversed-phase column. Observed elution times were compared with those expected from the nature of the differences from bovine insulin. In some cases prediction rules established for peptides are adequate to explain the observed elution and in ...
S.P. Wood, A. McLeod
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High-Performance Liquid Chromatography

1988
Considerable attention has recently been focused on the biosynthesis and metabolism of bile acids in patients with hepatobiliary diseases, and the development of reliable methods is urgently required for the analysis of profiles of bile acids in biological materials.
Junichi Goto, Toshio Nambara
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High-performance liquid chromatography of cardiolipin

Journal of Chromatography B: Biomedical Sciences and Applications, 1985
Resolution of freshly prepared and of commercially available (degraded) samples of cardiolipin into 15-30 components has been accomplished by reversed-phase high-performance liquid chromatography using a 3-micron particulate Microsorb C18 column irrigated with linear gradients of acetonitrile--methanol--10 mM phosphate buffer pH 7.4.
Leland L. Smith, Jon I. Teng
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High-performance liquid chromatography of isopeptides

Journal of Chromatography A, 1986
High-performance liquid chromatographic (HPLC) methods are described for the structural analysis of clavicepamines, their analogues and branched-chain polypeptides, the analysis in synthetic stages of isopeptides (analysis of half-protected derivatives and purity control of active esters) and the differentiation between alpha- and iso-peptides (such as
Gabriella Kelemen, Angela Török, Gyula Szókán   +2 more
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High Performance Liquid Chromatography

2019
High performance liquid chromatography (HPLC) is a form of liquid chromatography which is used to separate the individual components of interest present in mixture and/or dissolved in sample solution. It is based on pumping of mobile phase through the packed column under high pressure.
Muhammad Sajid Hamid Akash, Kanwal Rehman   +1 more
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High-performance liquid chromatography of proteins

Journal of Chromatography A, 1976
Proteins were separated on microparticulate bonded phase steric exclusion and anion-exchange chromatography supports. A post-column enzyme detector was developed which gives a specific and sensitive response for enzymes. The three iso-enzymes of creatine phosphokinase were separated and assayed in 4 min and the five isoenzymes of lactic dehydrogenase ...
Karen M. Gooding, Shung Ho Chang, Fred E. Regnier   +2 more
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High performance liquid chromatography

1999
The pioneering work of Martin and Synge [1] led to the development of gas-liquid chromatography, an elegant chromatographic method where, even with packed columns, the efficiencies achieved were high and the technique could be used with equal facility for both analytical and preparative studies.
F. J. Smith, A. Braithwaite
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