Organic low-molecular

Deposition of the analyte on nitrocellulose films instead of metal foils allows the removal of alkali ion contaminations by washing of the sample layer which results in better PD spectra. [163] Further improvements can be achieved by adsorption of the analyte molecules on top of an organic low-molecular weight matrix layer. [164,165]... 

Contaminant species Particulate matter and suspensions Colloidal impurities High-molecular-weight organics Middle-molecular-weight organics Low-molecular-weight organics Multivalent ionic solutes Acids... 

In the present work, orthophosphate compounds have been chosen. Orthophosphates are the most compatible with biological objects, solubilizable by organic low-molecular and polymeric species. In addition, there is the... 

A further distinction, however, is necessary inside the field, as there are some differences among the electrogeneration of complex catalysts, and the direct electrodic production of inorganic or organic low molecular weight species acting as initiators. 

Organic Low-molecular-weight CH3NH2, C2H5NH2, Cation exchange, Conductivity... 

Organic Low-molecular-weight amines, alkylamines, mono-, di-, tri-. Cation Suppressed and non-... 

Many organic (low-molecular) components can be dissolved in a variety of simple fluids under near- or supercritical thermodynamic conditions. 

The MCT correctly describes the dynamics of colloidal glasses. " Its applicability to organic low-molecular-weight glass-forming systems is controversially discussed. 

Large varieties of plastic additives are available inorganics and organics, low molecular weight compounds and polymers, and single items and mixtures. With the extended application of plastics, new additives are emerging and it is difficult to summarize them fully. Several commonly used additives are described in the following sections. 

The success of silicone surfactants is related to their special character, which differs in many respects from that of organic low molecular weight and polymeric surfactants. The reasons for these differences may be summarized by three points ... 

Molecular oxygen can form charge transfer (CT) complexes with a number of organic low molecular liquids [2139] and solid polymers, such as polyethylene [851,2152], polypropylene, [60, 2150] poly(4-methyl-l-pentene) [2284] and polystyrene [36,1386,1610,1611,1615,1781,1793,1794,2301]. In polystyrene, at higher oxygen pressures ( 20-150 bar), CT complexes show an absorption band with 275 nm. 

Classification network Synthetic, organic, low molecular weight material. 

To remove byproducts from the reaction, the PEC complex can be precipitated and washed. However, the redispersion of the precipitate is difficult due to the agglomeration of the gel particles. Instead, inorganic ions such as sodium and sulfate can be removed using ion exchange resins. Furthermore, dialysis can be used to remove salts as well as organic low-molecular weight impurities. 

An alarm substance has been found by the same group for ants (18). The irldolactones could be classed as defense chemicals for this society insect and is structurally related to catnip. Another ant uses 6-methyl-5-hepten-2-one. Field observers are well aware of alarm substances from predators that are airborne organics. Low molecular weight organic acids (sweaty), aldehydes, ketones, alcohols and amines could serve. 

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