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Complex analytic properties

In addition, it can occasionally be useful to regard some physical parameter appearing in the theoi y as a complex quantity and the wave function to possess analytic properties with regard to them. This formal procedure might even include fundamental constants like e, h, and so on. [Pg.110]

The main chemico-analytical properties of the designed ionoselective electrodes have been determined. The work pH range of the electrodes is 1 to 5. The steepness of the electrode function is close to the idealized one calculated for two-charged ions (26-29 mV/pC). The electrode function have been established in the concentration range from 0.1 to 0.00001 mole/1. The principal advantage of such electrodes is the fact that thiocyanate ions are simultaneously both complexing ligands and the ionic power. The sensitivity (the discovery limits), selectivity (coefficient of selectivity) and the influence of the main temporal factors (drift of a potential, time of the response, lifetime of the membranes) were determined for these electrodes. [Pg.35]

According to the Floquet theorem [Arnold 1978], this equation has a pair of linearly-independent solutions of the form x(z,t) = u(z, t)e p( 2nizt/p), where the function u is -periodic. The solution becomes periodic at integer z = +n, so that the eigenvalues e we need are = ( + n). To find the infinite product of the we employ the analytical properties of the function e z). It has two simple zeros in the complex plane such that... [Pg.63]

Although the ECL phenomenon is associated with many compounds, only four major chemical systems have so far been used for analytical purposes [9, 10], i.e., (1) the ECL of polyaromatic hydrocarbons in aqueous and nonaqueous media (2) methods based on the luminol reaction in an alkaline solution where the luminol can be electrochemically produced in the presence of the other ingredients of the CL reaction (3) methods based on the ECL reactions of rutheni-um(II) tra(2,2 -bipyridinc) complex, which is used as an ECL label for other non-ECL compounds such as tertiary amines or for the quantitation of persulfates and oxalate (this is the most interesting type of chemical system of the four) and (4) systems based on analytical properties of cathodic luminescence at an oxide-coated aluminum electrode. [Pg.179]

Galceran, J., Cecilia, J., Salvador, J., Monne, J., Torrent, M., Companys, E., Puy, J., Garces, J. L. and Mas, F. (1999). Voltammetric currents for any ligand-to-metal concentration ratio in fully labile metal-macromolecular complexation. Easy computations, analytical properties of the currents and a graphical method to estimate the stability constant, J. Electroanal. Chem., 472, 42-52. [Pg.201]

In short, most work on POMs address primarily their pH of formation, the stability of the various complexes with emphasis on their analytical properties, homogeneous catalysis, radiochemical, and photochemical behaviors. All these properties have been described in a series of excellent reviews, which usually include short developments on their electrochemistry and redox catalysis properties [2-9, 24-28]. The reader is referred to these reviews for general descriptions of POMs synthesis, structures, and reactivity. Among these reviews, particular attention is drawn to those few containing substantial developments on electron transfer behaviors and the electrochemistry of POMs [2, 4, 5, 7-9, 24-28]. [Pg.613]

While discussing the properties of light using a classical description, the formalism is recast as close as possible to the quantum form by introducing the complex analytical signal (r, f), which may be obtained from the real field (r,r) by [18]... [Pg.347]

A special class of non-reactive additives in polymer materials are CPs, which have plasticizing and flame-retarding properties. They were found in an emission test of a television set with a maximum concentration of 2.2 tgm-3 after 220 h of operation (Wensing, 2003). CP are used as a substitute for PCBs, which have been prohibited worldwide since 2001. The detection of CP in indoor air needs a complex analytical procedure because the amount of single compounds in a CP mixture is high. Therefore, this class is seldom found during standard TD-GC-MS analysis. [Pg.424]

Sposito, G., Holtzclaw, K. M., and Baham, J. (1976). Analytical properties of the soluble, metal-complexing fractions in sludge-soil mixtures II. Comparative structural chemistry of fulvic acid. Soil Sci. Soc. Am. J. 40, 691-697. [Pg.180]

Analytical Properties Separation of polynuclear aromatic hydrocarbons (of the type often encountered in petroleum residue work) by donor-acceptor complex formation Reference 5, 6... [Pg.141]

Analytical Properties Separates phenols and EPA priority pollutants often used with metal ions (such as iron (III)) as chelate ligands 8-quinolinol has a high affinity for oxygen moieties and will form complexes with upwards of 60 metal ions often with an acidic aqueous mobile phase Reference 48-50... [Pg.146]

Analytical Properties Substrate has 38 chiral centers and 7 aromatic rings surrounding 4 cavities (A, B, C, D), making this the most structurally complex of the macrocyclic glycopeptides substrate has a relative molecular mass of 2066 this phase can be used in normal, reverse, and polar organic phase separations selective for anionic chiral species with polar organic mobile phases, it can be used for a-hydroxy acids, profens, and N-blocked amino acids in normal phase mode, it can be used for imides, hydantoins, and N-blocked amino acids in reverse phase, it can be used for a-hydroxy and halogenated acids, substituted aliphatic acids, profens, N-blocked amino acids, hydantoins, and peptides Reference 47, 48... [Pg.162]

However, from the point of view of linear response theory, the definitions (174) or (178) suffer from several drawbacks. Actually, the function X ( , tw) as defined by Eq. (174) is not the Fourier transform of the function X (, x), but a partial Fourier transform computed in the restricted time interval 0 < x < tw. As a consequence, it does not possess the same analyticity properties as the generalized susceptibility x( ) defined by Eq. (179). While the latter, extended to complex values of co, is analytic in the upper complex half-plane (Smoo > 0), the function Xi ( - tw) is analytic in the whole complex plane. As a very simple example, consider the exponentially decreasing response function... [Pg.310]

According to Eq. (187), the quantity p(oo)fcT (oo) = (v(t)v)e,B>t dt can be extended into an analytic function in the upper complex half-plane. Since this analyticity property holds for p(oo), it also holds for (oo). [Pg.313]

Equation 6.36 for the adiabatic potential is exact within the framework of the mean field description. However, the structure of the electric part P1 is too complex to disclose its analytic properties. Here we examine the adiabatic potential numerically following the Carlson theory of elliptic integrals [15-21], To proceed with numerical computation, it is necessary to enter a set of parameters designed to describe an experimental situation. It will not surprise the reader who has made it this far that we use values of the chemically fixed parameters specified by the n-butylammonium vermiculite gels [22], namely m+ = 74 mp and m = 36 mp. The average density n0 of the small ions is given by... [Pg.103]

Analytic properties of X) in the complex -plane then allow one to obtain a linear connection between the free energy surfaces... [Pg.159]

The answer to this question is that, although the constants Ck undoubtedly exist, their analytical properties may be so complicated that they do not impose any restrictions on the motion of the system. This is immediately clear since the process of finding the constants involves the inversion of a system of 2/ nonlinear coupled equations. Theorems in mathematics assure us of the local existence of 2/ explicit functions Cfc, but globally, i.e. for all values of p,q and t, they may only be defined with the help of infinitely many branches. Therefore, we can divide the constants of the motion into two classes, useful and useless . The useful constants of the motion possess a simple analytical structure, a finite number of branches, and are valid for all time t. Such constants actually restrict the motion of the system to a sub-manifold of phase space. Thus, the presence of a useful constant of the motion results in a simplification of the mechanical system at hand. The analytical properties of the useless constants are so unbehevably intricate and complex that they do not result in a reduction of the dimensionahty of phase space. Their presence is no obstacle for chaos. [Pg.80]

There are few reported data for the rates of electron transfer between the large complexes of these ligands. The rates are very large, and for the iron group metals NMR studies only allow a lower limit of 10 1 mole sec to be set (200, 224, 473, 474). The exchange between the tris complexes of Co(II) and Co(III) is found to catalyze ligand exchange for Co(III) (230) it has also been studied in nonaqueous media (504). Because of their convenient analytical properties, however, bipyridyl and phenanthroline complexes have been extensively examined in their oxidation reduction reactions. [Pg.153]


See other pages where Complex analytic properties is mentioned: [Pg.718]    [Pg.97]    [Pg.102]    [Pg.110]    [Pg.277]    [Pg.312]    [Pg.348]    [Pg.946]    [Pg.141]    [Pg.377]    [Pg.216]    [Pg.109]    [Pg.201]    [Pg.206]    [Pg.214]    [Pg.78]    [Pg.348]    [Pg.387]    [Pg.255]    [Pg.163]    [Pg.164]    [Pg.808]    [Pg.234]    [Pg.130]    [Pg.311]    [Pg.289]   
See also in sourсe #XX -- [ Pg.20 , Pg.24 , Pg.26 , Pg.48 , Pg.49 , Pg.213 ]




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