Determination of important

The thermodynamic study of thiazole and of some of its binary mixtures with various solvents has led to the determination of important practical data, but also to the discovery of association phenomena between thiazole and some solvents and of thiazole self-association. [Pg.85]

Lou, D.-W., Saito, Y., and Jinno, K. (2005). Solid-phase extraction and high-performance liquid chromatography for simultaneous determination of important bioactive ginsenosides in pharmaceutical preparations. Chromatographia 62, 349-354. [Pg.89]

GC employing IL stationary phases has proven to be a powerful tool for the determination of important thermodynamic properties involving mixtures of ILs and organic solvents. Heinz and Verevkin have published an extensive number of thermodynamic parameters for pyridinium- and imidazolium-based ILs using a variety of organic solutes [12-14]. Paramount of... [Pg.147]

Idio ncrasy. This is a response that is qualitatively different from the action of the drug in normal individuals, again often genetically determined. Of importance to anaesthetists are abnormal responses to several drugs in patients with acute intermittent porphyria, and in those susceptible to the malignant hyperpyrexia syndrome. [Pg.266]

The standard procedures for the determination of important substance classes can be summarized ... [Pg.152]

Spectrometers allow determination of important parameters including wavelength and intensity, enabling identihcation, characterization and quantification of given hiomolecule(s). [Pg.121]

Determination of Important Parameters in Surfactant Design. Recent work (Chapters 8 and 9) demonstrates the utility of correlating test results with surfactant structures. But as the complexities of pore level mechanisms, dispersion properties, and fluid behavior become better understood, it is also becoming increasingly clear that a variety of physical property measurements will be required for advanced surfactant design. Many of these measurements will be needed at pressures (ca. 10 MPa) that are characteristic of gas-flood conditions. [Pg.23]

The first natural-abundance N NMR spectrum on humic material was obtained by the solid-state CPMAS technique on a peat having a nitrogen content of 4% by Preston et al.(53). After systematic determination of important N NMR spectral parameters, it was possible to obtain solid-state N NMR spectra of humic material in soil and sediments at natural N levels(60-62) with an acceptable signal-to-noise ratio. Recently solid-state N NMR spectroscopy was extended to the investigation of the nitrogen functionality in coals.(63)... [Pg.67]

While the infinite dose technique has been invaluable in the determination of important skin permeability parameters such as dermal penetration coefficients and in the development of transdermal drug delivery concepts, to mimic in vivo conditions, the so-called finite dose technique was developed. This is essentially a modification of the traditional steady-state method. The important difference is that the skin preparation is supported over the receptor so that the epidermal surface is exposed in a manner that mimics the real-life exposure scenario, and the compound of interest is applied to the surface of the skin in a manner also similar to exposure in vivo. Although the results of such studies may give valuable information about the absorption of materials under specific exposure conditions, they are generally not amenable to extrapolation to other exposures since no invariant skin properties such as penetration coefficients can be readily calculated. [Pg.2428]

Grass and clover for animal feed are routinely analysed to determine elements of nutritive quality (e.g. Ca, Mg, K, P, N, Mn etc.) and of potential risk (e.g. Cd, Hg). The results of determination of nutritive elements are used in the design of a well-balanced diet. The determination of the dangerous elements is necessary to avoid affecting the health of domestic animals which would lead to a lower production (economic loss) or even could cause damage to the consumer of animal products (milk, meat etc.). The rye grass material described in this chapter was produced for the quality control of determinations of important heavy elements, either of dangerous nature (e.g. Cd, Pb, Hg, Cu, Zn) or their role in animal nutrition (e.g. Se, Mo) [7,8]. [Pg.243]

Ferreira, V., Cullere, L., Lopez, R., and Cacho, J. (2004). Determination of important odor-active aldehydes of wine through gas chromatography-mass spectrometry of their G-(2,3,4,5,6-pen tafluorobenzyl)oximes formed directly in the solid phase extraction cartridge used for selective isolation, /. Chromatogr A, 1028, 339-345. [Pg.155]

Table 1.8.1. Standard procedures for determination of important substance classes.

Procedures for the determination of important properties are essential for the selection of an appropriate product and for joint design and analysis. We have seen that adhesive polymers are sensitive to temperature and moisture, and to the rate at which stress is applied. Their bondline behaviour in joints depends greatly upon the system stiffness, and upon more subtle variations such as bondline thickness. It is therefore important that test methods are relevant to the real application, the fabrication conditions, the actual materials to be joined, and so on. Many standard test methods exist, for both strength and durability assessment, and these were discussed in Chapter 4. [Pg.184]

Determination of important words Automatic classification of documents Calculate the similarity between documents, Clustering... [Pg.434]

By subsequently applying methods for multivariate nonparametric regression to appropriate subsets of the state estimates, visual determination of important trends and dependencies is facilitated, in turn allowing appropriate parametric expressions for the unknown functional relations in the constitutive equations to be inferred. More details on the individual steps of the proposed procedure are given in the following. [Pg.1092]

The determinations of importance in the examination of this oil are <(1) the determination of chlorine, or at all events its detection qualitatively, if present (2) the determination of benzaldehyde, and (3) the determination of hydrocyanic acid. [Pg.408]

A practical determination of importance is that of the hardness of water, which is due to calcium and magnesium salts dissolved in it. Hence, this is the determination of Ca + and Mg + in admixture in water. [Pg.570]

Bergner, K. G. and Jaegerhuber, P. Contributions to the Rapid Determination of Important Radionuclides ( Sr, Sr, I, and Cs) in Foodstuffs and Water. II Experimental Procedures. Deut. Lebensm. Rundsch. [Pg.55]

Further study should focus on the determination of important parameters including the effective diffusivities of interested molecules in the scaffold, metabolic activities of different cells under different conditions, and matrix turnover measurements. For the model itself, the simulation of macromolecules transport needs to be address as most growth factors are proteins, including protein transport through membranes and diffusion within the scaffold. The electrostatic interaction is expected to be important as demonstrated in... [Pg.418]

Kwong, C.K Bai, H. (2002) A fuzzy AHP approach for the determination of importance weights of customer requirements in quality function deployment. In Journal of Intelligent Manufacturing, 13(5), 367-377. [Pg.129]

Calorimetry takes a special place among other methods. In addition to its simplicity and universality, the energetic characteristics (heat capacity Cp and its integral over temperature T-enthalpy H), measured via calorimetry, have a clear physical meaning, even though sometimes interpretation may be difficult. From thermodynamics, it is well known that the knowledge about heat capacity from 0 K up to the temperature of interest allows the determination of important parameters characterizing materials in equilibrium. [Pg.793]

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