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Influence of calcium

The aim of the investigation was to study the influence of calcium and sodium ions, pectin containing extracts of aromatic vegetative raw materials and mumio on the carbopol gelation to develop the procedure of calcium and sodium ions mass part determination in extracts of aromatic vegetative pectin containing raw materials to establish the macro- and microelement composition of mumio. [Pg.375]

The exceptionally strong influence of calcium-ions on pectin solutions especially made with HM citrus pectins can be shown by a frequency sweep. The addition of calcium leads to an increase of the complex viscosity. Additionally we can observe a stable trapping of air bubbles in the solution. This effect can not be caused by the increase of viscosity. The frequency sweeps of the solutions give the answer. The storage modulus curves show the significant increase of the elastic shares caused by the addition of calcium-ions. [Pg.419]

Influence of Calcium on Adsorption Properties of Enhanced Oil Recovery Polymers... [Pg.227]

The influence of calcium on the adsorption of high molecular weight EOR polymers such as flexible polyacrylamides and semi-rigid xanthans on siliceous minerals and kaolinite has been studied in the presence of different sodium concentrations. Three mechanisms explain the increase in polyacrylamide adsorption upon addition of calcium (i) reduction in electrostatic repulsion by charge screening,... [Pg.227]

Figure 4. Influence of calcium on adsorption of PAM and HPAM on sand. Figure 4. Influence of calcium on adsorption of PAM and HPAM on sand.
Sobel AE, Yuska H, Peters DD, et al. 1940. The biochemical behavior of lead I. Influence of calcium, phosphorus, and vitamin-D on lead in blood and bone. J Biol Chem 188 239-265. [Pg.577]

G9. Grasbeck, R., Kantero, I., and Srurala, M., Influence of calcium ions on vitamin B12 absorption in steatorrhea and pernicious anaemia. Lancet i, 234 (1959). [Pg.116]

Experiments examining the influence of calcium and phosphate on the reductive dissolution of manganese oxides by hydroquinone have, in fact, shown inhibition by adsorbed ions (33). As the total phosphate in solution is increased, the rate of Mn + release diminished in proportion to the phosphate surface coverage. [Pg.455]

Vezzoli, G., Tanini, A., Ferrucci, L., et al. (2002) Influence of calcium-sensing receptor gene on urinary calcium excretion in stone-forming patients. J. Am. Soc. Nephrol. 13, 2517-2523. [Pg.169]

Bear, F.E. and Toth, S.J. (1948) Influence of calcium on availability of other soil cations. Soil Science 65, 67-14. [Pg.207]

Heaney, R. P., Weaver, C. M., and Fitzsimmons, M. L. (1990b). Influence of calcium load on absorption fraction. JBMR 5,1135-1138. [Pg.335]

Mibefradil is a verapamil-like agent with a potentially attractive haemodynamic profile. It is a vasodilator, which also causes a reduction in heart rate, whereas it is devoid of negative inotropic activity. Some of its properties are attributed to its influence of calcium channels of the T- and N-types. Unfortunately, the compound has been withdrawn because of multiple interactions with various other drugs. [Pg.334]

Table 5.4 Influence of calcium formate on the compressive strength of concrete ... Table 5.4 Influence of calcium formate on the compressive strength of concrete ...
Dickinson, E., Golding, M. (1998). Influence of calcium ions on creaming and rheology of emulsions containing sodium caseinate. Colloids and Surfaces A Physicochemical and Engineering Aspects, 144, 167-177. [Pg.109]

Graveland-Bikker, J.F., Ipsen, R., Otte, J., de Kruif, C.G. (2004). Influence of calcium on the self-assembly of partially hydrolyzed a-lactalbumin. Langmuir, 20, 6841-6846. [Pg.223]

Ye, A., Singh, H. (2000b). Influence of calcium chloride addition on the properties of emulsions stabilized by whey protein concentrate. Food Hydrocolloids, 14, 337-346. [Pg.231]

Chen B, Costantino HR, Liu J, Hsu CC, Shire SJ. Influence of calcium ions on the structure and stability of recombinant human deoxyribonuclease I in the aqueous and lyophilized states. J Pharm Sci 1999 88(4) 477 182. [Pg.306]

The development of a sensor for ionized magnesium turned out to be one of the most difficult challenges of recent years. Several carriers have been designed for this purpose but none have been satisfactory. The first report of a successful measurement of ionized magnesium in an automated clinical analyzer (Thermo, prev. KONE) was published only in 1990 [30]. The ionophore ETH 5520 was used as the active compound. Two other carriers have been used since then ETH 7025 (Roche, former AVL), and a derivative of 1,10-phenenthroline (Nova). All of the magnesium sensors are based on a plastic membrane. Numerical compensations of the influence of calcium ion and the ionic strength are used due to insufficient selectivity of the magnesium sensors. [Pg.16]

N. Labat-Allietta and D.R. Thevenot, Influence of calcium on glucose biosensor response and on hydrogen peroxide detection, Biosens. Bioelectron., 13 (1998) 19-29. [Pg.684]

Basu S, Chaudhuri D, Chaudhuri AN. 1997. Influence of calcium on the toxic effects of dietary aluminium. J Food Sci Technol 34 264-266. [Pg.294]

Provan SD, Yokel RA. 1988. Influence of calcium on aluminum accumulation by the rat jejunal slice. Res Commun Chem Pathol Pharmacol 59 79-92. [Pg.344]

Ostberg, T., and Graffner, C. (1994), Calcium alginate matrixes for oral multiple unit administration III. Influence of calcium concentration, amount of drug added and alginate characteristics on drug release, Int. J. Pharm., Ill, 271-282. [Pg.1221]

Published reports discussing the influence of calcium carbonate solid surfaces on the phosphate ion concentration in natural water (2, 3) include 1)solubility product-based calculations 5) iTspontaneous precipitation experimehts from highly supersaturated solutions 7j 9) 3) adsorption of phosphate onto calcium carbonate (10, 11, 12, 13), These experiments have provided useful information, but several have not included activity coefficient or ion pair corrections in their analyses, seriously limiting the applicability of the results. [Pg.739]

Goldman C. R. and Eubnow F. S. (1992) Seasonal influence of calcium magnesium acetate on microbioal processes in 10 northern Californian lakes. Resour. Conserv. Recy. 7, 51-67. [Pg.4871]

The strong adverse influence of calcium ions on the stability of lyophobic suspensions is predicted by DLVO theory, and has been demonstrated with many types of simple soils. That calcium ions have an overwhelming effect on the redeposition of carbon soil onto cotton tends to support the idea that DLVO theory is a principal key in explaining detersive action. The redeposition of carbon onto cotton has been correlated quantitatively with the calcium ion content of the system, both in the presence and absence of surfactant (95). The adverse effect of calcium ions on wet soil removal in practical washing has also been well established (96). The effect of calcium in detergency cannot be explained solely, however, by its shrinking of... [Pg.3142]

Tolins JP, Raij L. Adverse effect of amphotericin B administration on renal hemodynamics in the rat. Neurohumoral mechanisms and influence of calcium channel blockade. J Pharmacol ExpTher 1988 245 594-9. [Pg.347]

Vennat B, Quan ZQ, Pouget MP, Pourrat A. Procyanidin hydrogels. Influence of calcium on the gelling of alginate solutions. Drug Dev Ind Pharm 2003 20(17) 2707-2714. [Pg.595]

Daugaard H, Eg ord M, Olgaard K. Influence of calcium on the metabolism of intact parathyroid hormone by isolated perfused rat kidney and Ever. Endocrinology 1990 126 1813-20. [Pg.1948]

See other pages where Influence of calcium is mentioned: [Pg.534]    [Pg.233]    [Pg.29]    [Pg.69]    [Pg.451]    [Pg.230]    [Pg.209]    [Pg.978]    [Pg.148]    [Pg.233]    [Pg.22]    [Pg.168]    [Pg.49]    [Pg.220]    [Pg.219]    [Pg.96]    [Pg.8]   
See also in sourсe #XX -- [ Pg.192 , Pg.194 ]



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