Results 301 to 310 of about 153,926 (348)
Some of the next articles are maybe not open access.
High-performance thin-layer chromatography method for inositol phosphate analysis
Journal of Chromatography B: Biomedical Sciences and Applications, 1999A simple and inexpensive high-performance thin-layer chromatography (HPTLC) method for the analysis of inositol mono- to hexakisphosphates on cellulose precoated plates is described. Plates were developed in 1-propanol-25% ammonia solution-water (5:4:1) and substance quantities as low as 100-200 pmol were detected by molybdate staining. Chromatographic
F, Hatzack, S K, Rasmussen
openaire +2 more sources
JPC - Journal of Planar Chromatography - Modern TLC, 2018
High-performance thin-layer chromatography (HPTLC) and HPTLC–mass spectrometry (MS)/(MSn) methods for analyses of phenolic acids (chlorogenic acid, rosmarinic acid, protocatechuic acid, gallic acid, syringic acid, ellagic acid, trans-cinnamic acid, o-coumaric acid, m-coumaric acid, p-coumaric acid, caffeic acid, ferulic acid, sinapic acid) were ...
Urška Jug +3 more
openaire +1 more source
High-performance thin-layer chromatography (HPTLC) and HPTLC–mass spectrometry (MS)/(MSn) methods for analyses of phenolic acids (chlorogenic acid, rosmarinic acid, protocatechuic acid, gallic acid, syringic acid, ellagic acid, trans-cinnamic acid, o-coumaric acid, m-coumaric acid, p-coumaric acid, caffeic acid, ferulic acid, sinapic acid) were ...
Urška Jug +3 more
openaire +1 more source
Coupling High-Performance Thin-Layer Chromatography with Bacterial Genotoxicity Bioreporters
Environmental Science & Technology, 2019We present an innovative technological platform for monitoring the direct genotoxicity of individual components in complex environmental samples, based on bioluminescent Escherichia coli genotoxicity bioreporters, sprayed onto the surface of a high-performance thin-layer chromatography (HPTLC) plate. These sensor strains harbor plasmid-borne fusions of
Dror Shakibai +5 more
openaire +2 more sources
Journal of Chromatography A, 1987
New solvent systems consisting of acetonitrile, isopropanol and aqueous 50 mM potassium chloride or 2.5 M ammonium hydroxide were developed for the separation of gangliosides by high-performance thin-layer chromatography. These solvent systems seem to be superior for the resolution of polysialogangliosides such as tetra-, penta- and hexasialo species ...
S, Ando, H, Waki, K, Kon
openaire +2 more sources
New solvent systems consisting of acetonitrile, isopropanol and aqueous 50 mM potassium chloride or 2.5 M ammonium hydroxide were developed for the separation of gangliosides by high-performance thin-layer chromatography. These solvent systems seem to be superior for the resolution of polysialogangliosides such as tetra-, penta- and hexasialo species ...
S, Ando, H, Waki, K, Kon
openaire +2 more sources
Journal of Pharmaceutical and Biomedical Analysis, 1997
A method is described for the densitometric determination of the p-hydroxybenzoic esters and p-hydroxybenzoic acid in mixtures or in drugs. This method is compared with the one used in high performance liquid chromatography (HPLC). The calibration curves were linear in interval 0.250-3.60 mumol ml-1 per 200 nl per spot.
Thomassin, M. +3 more
openaire +2 more sources
A method is described for the densitometric determination of the p-hydroxybenzoic esters and p-hydroxybenzoic acid in mixtures or in drugs. This method is compared with the one used in high performance liquid chromatography (HPLC). The calibration curves were linear in interval 0.250-3.60 mumol ml-1 per 200 nl per spot.
Thomassin, M. +3 more
openaire +2 more sources
Programmed multiple development: High performance thin layer chromatography
Journal of the American Oil Chemists' Society, 1977AbstractPoor resolution and sensitivity are not inherent in thin layer chromatography (TLC). They merely re‐flect the fact that TLC, as normally practiced, is not a high performance (efficient) technique. When efforts are made to improve the efficiency of TLC, the re‐sulting improvements in resolution and sensitivity make high performance TLC fully ...
openaire +1 more source
High-Performance Thin-Layer Chromatography: Excellent Automation
2010Product innovations from CAMAG, Switzerland, have made thin-layer chromatography (TLC) a practical laboratory tool for both qualitative and quantitative analysis. Instrumentation was developed to permit more precise auto spotting of the sample. Sample preparation is simplified because precoated clean plates are disposable.
openaire +1 more source
Journal of Liquid Chromatography, 1993
Abstract A simple and precise method using High-Performance liquid [HPLC] and High-Performance Thin-Layer Chromatography [HPTLC] was developed for simultaneous determination of the frequently encountered cucurbitacins B (1), D (2), 3-epi-iso-cucurbitacin D (3), E (4) and I (5) as well as cucurbitacin glycosides E (6) and I (7).
F. T. Halaweish, D. W. Tallamy
openaire +1 more source
Abstract A simple and precise method using High-Performance liquid [HPLC] and High-Performance Thin-Layer Chromatography [HPTLC] was developed for simultaneous determination of the frequently encountered cucurbitacins B (1), D (2), 3-epi-iso-cucurbitacin D (3), E (4) and I (5) as well as cucurbitacin glycosides E (6) and I (7).
F. T. Halaweish, D. W. Tallamy
openaire +1 more source
Journal of Liquid Chromatography & Related Technologies, 2006
Abstract (HP)TLC is a technique with large applicability in the fields of plant material analysis and stability tests of extracts and finished products. The implementation of a modern standardized methodology led to the increasing of acceptance and recognition of (HP)TLC as competitive analytical method. (HP)TLC has many advantages, such as lower costs,
openaire +1 more source
Abstract (HP)TLC is a technique with large applicability in the fields of plant material analysis and stability tests of extracts and finished products. The implementation of a modern standardized methodology led to the increasing of acceptance and recognition of (HP)TLC as competitive analytical method. (HP)TLC has many advantages, such as lower costs,
openaire +1 more source
High-Performance Thin-Layer Chromatography
2022Semih Ötles, Vasfiye Hazal Özyurt
openaire +1 more source