High ionic strength solution

Use of the K p for precipitation information is often complicated by a number of interfering factors including complexation of metallic ions, high ionic strength solutions, and high solids contents. This principle is applicable solely to ionic compounds, i.e., primarily inorganic compounds. 

Tmbetskoy VS, Loomis A, Slattum PM, Hagstrom JE, Budker VG, Wolff JA (1999) Caged DNA does not aggregate in high ionic strength solutions. Bioconjug Chem 10 624—628... 

In summary, a practical realization of FEDs for the pure electrostatic detection of charged macromolecules by their intrinsic molecular charge, especially in high ionic-strength solutions such as physiological conditions, seems to be problematic. All the above discussed disturbing factors, together with a possible undesired adsorption or... 

In contrast to the DNA detection by its intrinsic molecular charge, even in high ionic-strength solutions (0.5 M), where the hybridization efficiency is high and the hybridization event can be faster, a detectable sensor signal can be achieved. The estimations performed under the assumptions presented in Fig. 7.8 predict signal values of about 28-35 mV. 

A. Flamberg and R. Pecora, Dynamic light scattering study of micelles in a high ionic strength solution, J. Phys. Chem. 88 (1984) 3026-3033. 

Use of equation 1.5 for the relation between activity and concentration makes it possible to express these activities as concentrations. Except for high ionic strength solutions such as brines (ionic strength > 1), it is usually sufficient to approximate the activity of water as unity, thus eliminating the an2o term. The resulting equations for concentrations are ... 

More information is needed on carbonate reaction kinetics near equilibrium in complex and high ionic strength solutions, and the influences of temperature and pressure on kinetics to near metamorphic conditions. 

High ionic strength solutions, e.g., aqueous solutions containing high concentration of salt, are known to induce a phase transition to a left handed helical form in. .CGCG.. sequences. The left handed helical form basically shows an inversion of the UV-CD spectral features between the B and the Z forms. 

Mercer, K.L. and Tobiason, J.E. 2008. Removal of arsenic from high ionic strength solutions Effects of ionic strength, pH, and preformed versus in situ formed HFO. Environmental Science and Technology, 42 3797-802. 

HaitwickeJ al. (HIO) studied the use of high-ionic-strength solutions for the precipitation of serum proteins. In this technique a saturated solution of ammonium sulfate was added to serum and the supernatant was analyzed by RPLC after centrifugation. The recoveries for serum nucleosides and xanthine alkaloids were good, ranging from 93 to 100%. In addition, the serum profile showed no interference from this extraction technique. 

Data are sparse for americium sorption in high-ionic-strength solutions. In experimental studies with near-surface sediments from the Gorleben site, Lieser et al. (1991) showed that americium sorption did not vary (K 1,000 mL g ) over a range of NaCl concentrations of 0-2 M, at a pH 7.5. They concluded that... 

Several studies have shown that actinide-humic acid complexes are thermodynamically stable in high-ionic-strength solutions (Czerwinski et al, 1996 Marquardt et al., 1996 Labonne-Wall et al, 1999). However, destabilization of humic colloids at high ionic strength (Buckau et al, 2000) and competition for humic... 

Correct sample preparation ensures good resolution and extends the life of the column. To ensure efficient binding during sample application samples should be at the same pH as the starting buffer and in high ionic strength solution (e.g. 

Q.19.4 In experiments to investigate the protein structure of the nucleosome octamer, the isolated nucleosome is placed in a very high ionic strength solution. This step causes the dissociation of the DNA from the histones. Explain this in terms of the interactional energies of nucleosome formation. 

A. 19.4 The interaction of the protein with the DNA involves strong ionic interactions. In high ionic strength solutions, the free ions out-compete the DNA for the protein s interactions, releasing the protein from the DNA. 

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