Average concentration quotient

Assuming for simplicity a 1 1 stoichiometry for aU ML, complexes, the complexation reaction of a suigle metal ion M with a multiligand system such as HS containing a number of ligands L, can be described by an average stability constant, or, more appropriately, an average concentration quotient (MacCarthy and Perdue, 1991) ... 

They represent only average equilibrium quotients or overall site concentrations for a range of site types having widely different affinities. 

An average conditional concentration quotient, also called a stability function, K, can be defined for the overall binding of a single metal ion to multiligand systems such as HSs (MacCarthy and Perdue, 1991) and calculated directly from experimental data as (Perdue, 1989)... 

Similarly, exact solutions can be obtained for products (or quotients) of lognormal distributions (e.g. Burmaster Thompson, 1995). This situation may be possible for some simple exposure assessments if one is working with one equation, such as the product of intake rate, concentration in the intake media (e.g. air, liquid), exposure duration and exposure frequency, divided by an averaging time and body weight, as long as all of the input distributions are lognormal. 

Specificity To determine the cross reactivity, pooled serum with an hFSH content of 0 or 15 U/1 was given additions of different quantities of hormones as listed below. The percentage cross reactivity is the quotient from the average hFSH concentration and the concentration of the cross-reacting substance that is required to achieve the same degree of binding to the antibody. 

The simplest version is the quotient (4C.7) leading to explicit equations for each time interval, while the other two lead to implicit equations. If we use the scheme (4C.9) with a = 0.5, an arithmetic average of the two concentration gradients at the time level t, and tj, the following linear equation system results from Eq. (4C.2) ... 

Figure 2.13. Measured and predicted redox potential variation with reaction quotient of measured spedes concentration in the Nernst relation (average potential shift 0.37 V) (Pamukcu, Weeks, and Wittle, 2004).

The reaction rate is given by the quotient of the activated complex concentration in the box over the average lifetime duration t ... 

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