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Detection spherical

GFNM is a one-level (or horizontal) clustering procedure. It may be used to detect spherical or ellipsoidal clusters. The shape of the clusters detected by this procedure is influenced by the matrix M. If M = I il... [Pg.332]

Fig. 3. Schematic diagram of a dark field system for measuriag the light scatteriag by a spherical red blood cell where V = volume of sample and HC = hemoglobin concentration. Optical flow cell system having double-angular interval detection at angles 9 and 02. Fig. 3. Schematic diagram of a dark field system for measuriag the light scatteriag by a spherical red blood cell where V = volume of sample and HC = hemoglobin concentration. Optical flow cell system having double-angular interval detection at angles 9 and 02.
The resolution required in any analytical SEC procedure, e.g., to detect sample impurities, is primarily based on the nature of the sample components with respect to their shape, the relative size differences of species contained in the sample, and the minimal size difference to be resolved. These sample attributes, in addition to the range of sizes to be examined, determine the required selectivity. Earlier work has shown that the limit of resolvability in SEC of molecules [i.e., the ability to completely resolve solutes of different sizes as a function of (1) plate number, (2) different solute shapes, and (3) media pore volumes] ranges from close to 20% for the molecular mass difference required to resolve spherical solutes down to near a 10% difference in molecular mass required for the separation of rod-shaped molecules (Hagel, 1993). To approach these limits, a SEC medium and a system with appropriate selectivity and efficiency must be employed. [Pg.30]

For spherical rotators, the measured value of tan Amax is independent of the rate of rotation. However, for non spherical rotators, the measured value of tan Amax depends on the molecular shape and is always smaller than the measured value of tan Amax for spherical molecules. Nonsphericity can be detected by calculating the tan... [Pg.190]

Porphyrin is a multi-detectable molecule, that is, a number of its properties are detectable by many physical methods. Not only the most popular nuclear magnetic resonance and light absorption and emission spectroscopic methods, but also the electron spin resonance method for paramagnetic metallopor-phyrins and Mossbauer spectroscopy for iron and tin porphyrins are frequently used to estimate the electronic structure of porphyrins. By using these multi-detectable properties of the porphyrins of CPOs, a novel physical phenomenon is expected to be found. In particular, the topology of the cyclic shape is an ideal one-dimensional state of the materials used in quantum physics [ 16]. The concept of aromaticity found in fuUerenes, spherical aromaticity, will be revised using TT-conjugated CPOs [17]. [Pg.70]

The immobilization of the hyperbranched spherical structures onto physical transducers greatly increases the binding capacity of the surface and leads to enhanced sensitivity and extended linearity of biosensors. Nucleic acid dendrimers were prepared and their amplification properties for the detection of DNA were examined using mass-sensitive transducers [45, 46]. Antibodies... [Pg.254]

Separation of colloids by GPC is an important technical advance that may help in the characterization of novel materials. One such separation was the shape separation of gold particles of nanometer size by GPC on a Nucleogel GFC 1000-8 column using sodium dodecyl sulfate and Brij-35 [polyoxyethylene (23) dodecanol] to modulate the adsorption properties of the colloidal gold.42 Rodlike and spherical particles were separated using UV-VIS detection. [Pg.379]

Applications Sollinger and Sawatzki [793] have reported the use of TLC-Raman for routine applications, e.g. TLC of hydroxybenzenes (including hydro-quinone and pyrogallol) on conventional, silica gel and specific Raman-TLC plates (coated with spherical silica gel). Databases were used for identification of substances. Typical detection limits were in the low p,g region per application, Micro-Raman spectrometry has been employed in analysing TLC fractions from polymer additives within a detection limit... [Pg.537]

Figure 2 Evolution of the neutron scattering intensities with time. Only spherical micelles of P123 block copolymer are present in the synthesis mixture within the first few minutes of the reaction (300 s), during the hydrolysis of the silica precursor. Then, hybrid organic-inorganic cylindrical micelles are detected (300-1400 s). The SBA-15 hexagonal phase is formed when the precipitation occurs, after 1400 s. Figure 2 Evolution of the neutron scattering intensities with time. Only spherical micelles of P123 block copolymer are present in the synthesis mixture within the first few minutes of the reaction (300 s), during the hydrolysis of the silica precursor. Then, hybrid organic-inorganic cylindrical micelles are detected (300-1400 s). The SBA-15 hexagonal phase is formed when the precipitation occurs, after 1400 s.

See other pages where Detection spherical is mentioned: [Pg.224]    [Pg.693]    [Pg.694]    [Pg.752]    [Pg.1977]    [Pg.328]    [Pg.130]    [Pg.224]    [Pg.5]    [Pg.241]    [Pg.501]    [Pg.296]    [Pg.182]    [Pg.802]    [Pg.43]    [Pg.43]    [Pg.185]    [Pg.132]    [Pg.342]    [Pg.152]    [Pg.40]    [Pg.255]    [Pg.281]    [Pg.324]    [Pg.218]    [Pg.89]    [Pg.439]    [Pg.578]    [Pg.259]    [Pg.565]    [Pg.207]    [Pg.116]    [Pg.136]    [Pg.242]    [Pg.213]    [Pg.151]    [Pg.203]    [Pg.126]    [Pg.108]    [Pg.101]    [Pg.328]    [Pg.79]   
See also in sourсe #XX -- [ Pg.186 ]




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