Chromatography high temperature

Chromatography, High-Temperature Gas-liquid, in lipid Analysis (Vaver and... [Pg.251]

The fundamental research work was subvided into 3 parts [ 6o ] - thermogravimetric analysis (TGA) and differential thermal analysis (PTA) of minute samples (5 50 mg) of the material to be studied. Both techniques yield information on the rate of thermal decomposition, the heat of reaction, the kinetic parameters of this process (pseudo-order and activation energy) and the amount of residue. The analysis of the evolving product has been monitored by means of gas chromatography. High temperature oxidation of the residue allows to compare the reactivity of the carbonized residue. ... [Pg.402]

Chromatography, High Temperature Gas-Liquid, in Lipid Analysis... [Pg.368]

MAJOR APPLICATIONS Liquid phase in gas chromatography. High-temperature elastomer used to formulate gaskets, O-rings, and wire coatings. Can be fabricated like conventional silicones. [Pg.30]

See alsa Carbohydrates Starch. Derivatization of Analytes. Extraction Solvent Extraction Principles. Fluorescence Food Applications. Gas Chromatography High-Temperature Techniques. Lipids Fatty Acids Polar Lipids. Liquid Chromatography Food Applications. Mass Spectrometry Food Applications. Quality Assurance Quality Control Internal Standards. Sample Handling Comminution of Samples. Sampling Theory. [Pg.1584]

See also Gas Chromatography Overview Gas-Solid Chromatography High-Temperature Techniques Chiral Separations. [Pg.1833]

Ca.rhora.nes, These are used in neutron capture therapy (254), and as bum rate modifiers in gun and rocket propellants. They are used as high temperature elastomers and other unique materials, high temperature gas—Hquid chromatography stationary phases, optical switching devises (256), and gasoline additives (257). [Pg.254]

In all modes of chromatography, high sample loads distort peak shapes and cause an overall decrease in efficiency due to column overload. Sample loads may be increased by using organic solvents to enhance the solubility of the sample or by using higher column temperatures to lower the viscosity of... [Pg.99]

QUALITY CONTROL OF COLUMNS FOR HIGH-TEMPERATURE GEL-PERMEATION CHROMATOGRAPHY... [Pg.583]

To ensure quality control material suppliers and developers routinely measure such complex properties as molecular weight and its distribution, crystallinity and crystalline lattice geometry, and detailed fracture characteristics (Chapter 6). They use complex, specialized tests such as gel permeation chromatography (2, 3), wide- and narrow-angle X-ray diffraction, scanning electron microscopy, and high-temperature pressurized solvent reaction tests to develop new polymers and plastics applications. [Pg.300]