Coatings mercury

Paperboard packaging, converting, 15 16 Paper chromatography, 9 233-234, 751 Paper chromatography, 6 384 Paper coating, mercury in, 16 52 Paper coatings... 

DOPC) monolayer-coated mercury electrodes in contact with different electrolytes, using electrochemical impedance spectroscopy and a multivariate analysis of impedance data. Rueda et al. [181] have analyzed impedance spectra of DOPC-coated mercury electrodes. 

Capelo, S., Mota, A.M. and Gongalves, M.L.S. (1995) Complexation of lead with humic matter by stripping voltammetry. Prevention of adsorption with Nafion-coated mercury film electrode. Electroanalysis, 7, 563-568. 

Figure 11. Plots of log Z and / v.v. log / for a thiol-hexapeptide-coated mercury drop immersed in 5xlO 3M (a), I.3xlO 2M (b), 3.6xlO 2M (c), and 0.1M (d) KC1, as obtained at -1.000 V over the frequency range from 0.1 to 105 Hz. At frequencies <102 Hz all Bode plots coincide hence, only the experimental points for the lower KC1 concentration were reported. The solid curves are least-squares fits to the simple equivalent circuit of inset (1), which consists of the electrolyte resistance Ra, with in series a RSCS mesh representing the self-assembled monolayer and a further RjiCji mesh representing the diffuse layer. Rs = 0.14 Mfi cm2 C, = 11 pF cm-2 Ra = 4.53 (a), 4.17 (b), 1.27 (c) and 0.87 KO cm2 (d). CW 68 (a), 61 (b), 80 (c) and 84 pF cm 2 (d). Inset (2) shows the reciprocal, 1/Cji, of the experimental diffuse-layer capacitance vs. the l/C fajj = 0) value corresponding to the same KC1 concentration, as calculated on the basis of the Gouy-Chapman (GC) theory. The solid curves are 1 /Ca(OM) vs 1 /C,ii(ctm = 0) plots calculated from the GC theory for different charge densities afo on the metal, whose values are reported on each curve. (Reprinted from Ref.114 with permission from the Am. Chem. Soc.)...

The solubility product of NiS was determined by linear voltage sweep voltammetry using a mercuric sulphide coated electrode (hanging mercury drop). The peak potential for the exchange reaction between the mercuric sulphide coated mercury electrode and Ni ions of a nickel perchlorate solution,... 

Wang, J. and Hutchins-Kumar, L. (1986). Cellulose acetate coated mercury film electrodes for anodic stripping voltammetry. Anal. Chem., 58.402. 

Figure 9.4. The relative intensities of three different sources. A The emission intensity of the short-wavelength (254 nm) mercury arc. B The emission intensity of the phosphor-coated mercury arc, showing the intense emission band. C The intensity of the xenon-arc lamp.

A filter that may be used for excitation at longer wavelengths is the 7-60 filter, whose transmittance is shown in Figure 9.5B. This transmits nearly all of the intense band of radiation emitted by the 4-watt low-pressure, phosphor-coated mercury source. 

Cao, G.X., Jimenez, 0 Zhou, F. (2006) Nafion-coated Bismuth Film and Nafion-coated Mercury Film Electrodes for Anodic Stripping Voltammetry Combined Online with ICP-Mass Spectrometry. J. Am. Soc. Mass Spectrom. 17 945-952. 

Fig.1 Curve of the differential capacity C versus potential E for DOPC-coated mercury in 0.1 M KCl. The inset shows C versus E curves for bare (dashed line) and DOPC-coated (solid line) mercury in 0.1 M solutions ofTMACi, KCl, and LiCi [16].

Lipoproteins are molecular aggregates that transport water-insoluble lipids in the blood plasma they contain a core of neutral lipids, coated with a monolayer of phospholipids in which special proteins (apolipoproteins) and cholesterol are embedded. The interaction of apolipoprotein A-I with PC-coated mercury proceeds in steps when increasing progressively its bulk concentration, ca-i [48]. For ca-i < 4 pg cm the differential capacity minimum C is not affected, but the concomitant decrease in the orientation peaks of PC points to an interaction of apoA-I... 

A reversible uptake of the first transferring electron followed by a ratedetermining protonation step, as in the case of UQ reduction (see Eq. 10), was also reported for the reduction of oxidized glutathione [62] and of diphenyl disulfide [63] incorporated in DOPC-coated mercury, on the basis of cyclic voltammograms yielding a unit slope for the plot of FEp/(2.3 RT) versus - pH at constant v. 

Fig. 11 Plots of log Z and of the phase angle versus log/ for a thiolpeptide-coated mercury drop immersed in 5 x 10 M (a),...

Fig. 14 Current versus potential curve of Ci6-coated mercury in aqueous 0.5 M KCl in the absence (A) and in the presence (B) of 1.0 X 10 M irCl6 scan rate = 5.12 V s electrode surface area = 0.0245 cm. The inset...

It was found that the dissociation rate constant is dependent on the concentration of the complexing agent L if a hanging mercury drop electrode was used. For small values of c, kd = 90s At Nation coated mercury film electrode the value of k is lower, k = 6 s . The difference has been explained by the assumption of adsorption of proline anions on the bare mercury electrode surface. This effect induces the acceleration of the dissociation process. 

Lipid-coated mercury electrodes have interesting practical applications. Interactions of the lipid with various species in the bulk electrolyte can be monitored electrochemically and ion transfer and charge transfer across the film can be measured. The lipid-coated electrode can aid in understanding the structure and functioning of biological membranes [127]. 

E. Pungor, G. Nagy, and Z. Feher, The flat surfaced membrane coated mercury electrode as analytical tool in the continuous voltammetric analysis, Journal of Electroanalytical Chemistry, vol. 75, pp. 241-254, 1977. 

Cao GX, Jimenez O, Zhou F, Xu M (2006) Nafimi-coated bismuth film and nafion-coated mercury film electrodes for anodic stripping voltammetry eombined on-line with ICP-mass spectrometry. J Am Soc Mass Spectrom 17 945-952... 

Figure 7. STM image of an octanethiol-coated mercury drop after an approximately 50% reduction in drop volume, relative to the volume at the compaction point. The imaging conditions are bias voltage=1.6 V and scan frequency=39 Hz.

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