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Absorption various organs

Examples are given of common operations such as absorption of ammonia to make fertihzers and of carbon dioxide to make soda ash. Also of recoveiy of phosphine from offgases of phosphorous plants recoveiy of HE oxidation, halogenation, and hydrogenation of various organics hydration of olefins to alcohols oxo reaction for higher aldehydes and alcohols ozonolysis of oleic acid absorption of carbon monoxide to make sodium formate alkylation of acetic acid with isobutylene to make teti-h ty acetate, absorption of olefins to make various products HCl and HBr plus higher alcohols to make alkyl hahdes and so on. [Pg.2110]

Cement and Concrete Concrete is an aggregate of inert reinforcing particles in an amorphous matrix of hardened cement paste. Concrete made of portland cement has limited resistance to acids and bases and will fail mechanically following absorption of crystalforming solutions such as brines and various organics. Concretes made of corrosion-resistant cements (such as calcium aluminate) can be selected for specific chemical exposures. [Pg.2457]

Somatostatin acts on various organs, tissues and cells as neurotransmitter, paracrine/autocrine and endocrine regulator on cell secretion, smooth muscle contractility, nutrient absorption, cell growth and neurotransmission [1]. Some of its mainly inhibitory effects are listed in Table 1. Somatostatin mediates its function via a family of heptahelical G-protein-coupled receptors termed... [Pg.1148]

The key features of soot are its chemical inertness, its physical and chemical adsorption properties, and its light absorption. The large surface area coupled with the presence of various organic functional groups allow the adsorption of many different materials onto the surfaces of the particles. This type of sorption occurs both in the aerosol phase and in the aqueous phase once particles are captured by cloud droplets. As a result, complex chemical processes occur on the surface of soot particles, and otherwise volatile species may be scavenged by the soot particles. [Pg.148]

In 1941, Mackinney ° published the first specific absorption coefficients for chlorophyll a and chlorophyll b in 80% acetone, quickly followed by other reports citing different solvents. Chlorophylls form aggregates in various organic solvent-water mixtures that may interfere strongly with the absorbance maximum wavelength and the shapes of spectra. [Pg.435]

Both CO and C02 are reduced by eh. The immediate product of the first reaction is CO-, which reacts with water, giving OH and the formyl radical the latter has been identified by pulse radiolysis. The product of carbon dioxide reduction, C02-, is stable in the condensed phase with an absorption at 260 nm. It reacts with various organic radicals in addition reactions, giving carboxylates with rates that are competitive with ion-ion or radical-radical combination rates. [Pg.183]

These titanium oxo species oxidize various organic reactants. Direct confirmations of the participation of these titanium oxo species in the oxidation reactions have been obtained by infrared and EPR spectroscopies (54,133). The infrared absorption (133) or EPR (54) signal intensity of the titanium oxo species decreased simultaneously with an increase in the infrared or EPR signal intensities characterizing reaction products. [Pg.162]

OATP2B1 (old name OATP-B) is expressed at brush-border membranes of intestinal epithelial cells [32], OATP2B1 exhibited pH-sensitive transport activities for various organic anions such as estrone-3-sulfate, dehydroepiandros-terone sulfate, taurocholic acid, pravastatin, and fexofenadine [33], However, further studies are needed to determine the specific physiological and pharmacokinetic contribution of OATP2B1 for intestinal absorption of these compounds. [Pg.565]

Dietary Reference Intake (DRI) of Cu, 17-18% of the DRI of K, P, and Fe, and between 5 and 13% of the DRI of Zn, Mg, and Mn (Table 5.1). Potatoes are generally not rich in Ca, but can be a valuable source of trace elements, such as Se and I, if fertilized appropriately (Eurola et al., 1989 Poggi et al., 2000 Turakainen et al., 2004 Broadley et al., 2006). Moreover, since potato tubers have relatively high concentrations of organic compounds that stimulate the absorption of mineral micronutrients by humans, such as ascorbate (vitamin C), protein cysteine and various organic and amino acids (USDA, 2006), and low concentrations of compounds that limit their absorption, such as phytate (0.11-0.27% dry matter Frossard et al., 2000 Phillippy et al., 2004) and oxalate (0.03% dry matter Bushway et al., 1984), the bioavailability of mineral elements in potatoes is potentially high. [Pg.113]

It would appear at this stage that a good deal of useful information has yet to be obtained by the pulse radiolysis method concerning the absorption spectra of the solvated electron in various organic liquids. Such data would help to remove uncertainties regarding the assignment of bands and would serve as criteria for the validity of developing models. [Pg.49]

Tanoue, E. and Handa, N., 1979. Differential absorption of organic matter by various sized sediment particles in recent sediment from the Bering Sea. 3. Oceangr. Soc. 3ap., 35 199-208. [Pg.160]

Following the absorption of lycopene, it is transported to various organs and accumulates in tissues. Tissue distribution of lycopene varies considerably suggesting unique biological effects on some tissues and not on others. The highest concentrations of lycopene are in the testes, adrenal glands, liver, and prostate. Table VI shows the lycopene levels in human tissues (Rao and Agarwal, 1999). [Pg.112]

Hi) Use of pH indicators and buffers. The most common method is to inject into reverse micelles various organic dyes (indicators) whose absorption spectra depend on pH, and observe the shift of those spectra with respect to the injected water solution. Dye solubilization shows that the micellar cores in hydrocarbon solutions can be either strongly acidic or basic. The determination of the pKa of an indicator in the presence of detergent aggregates in non-aqueous solvents is intrinsically more complex than in aqueous system. [Pg.84]


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Absorption organics

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