Pelletier elements

Chong, S., Mersha, F.B., Comb, D.G., Scott, M.E., Landry, D., Vence, L.M., Perler, F.B., Benner, J., Kucera, R.B., Hirvonen, C.A., Pelletier, J.J., Paulus, H., and Xu, M.-Q. (1997) Single-column purification of free recombinant proteins using a self-cleavable affinity tag derived from a protein splicing element. Gene 192, 271-281. 

All the material world is formed of mixtures, aggregates or more complex combinations of pure substances. For example, it is well known that the bark of the Cinchona tree Cinchona calisaya) shows a remarkable antimalarial activity, which is due, not to the bark as such, but to some "pure substance" which forms an integral part of it. In 1820, the French pharmacists Pelletier and Caventou isolated the active principle of the Cinchona bark, which they called quinine, as a pure, crystalline substance, m.p. 177 °C (dec), -169°, and assigned an elemental... 

Experiments on the formation of tin phosphides were made by B. Pelletier,18 0. Emmerling, C. Kiinzel, E. Liipke, etc., who obtained a silvery-white alloy with 13-14 per cent, of phosphorus by heating the two elements together. Indefinite tin phosphides were made by A. Schrotter, and P. Vigier, who passed phosphorus vapour over the heated metal. G. Landgrebe melted tin with fused... 

Pelletier, D.H. Schetz, J.A. Finite element Navier-Stokes calculation of three-dimensional turbulent flow near a propeller. AIAA 1986, 24, 1409-1416. 

Already the first measurements performed in the containment about one day after the onset of the accident showed that the major fraction of fission product iodine was plated out in the sump water, while only a very smaU fraction was airborne in the containment atmosphere. Taking the different voliunes of both phases into account, an integral iodine partition coefficient of about 2 1(F was calculated from these data (Pelletier, 1980). The pH of the siunp water was about 8.6 (due to sodium hydroxide solution which was automatically injected into the containment sump to improve iodine retention in the liquid phase) the value of the partition coefficient is consistent with the data obtained in the CSE experiments, when the lower pH of the sump water in these experiments is taken into account. This high value indicates that in the TMI-2 accident the bulk of the fission product iodine was released from the primary circuit to the containment in the form of an iodide compound and not as elemental I2. This assumption is consistent with the observation made later on that only about 1% of the iodine present in the sump water was in the form of iodate it is also consistent with the redox conditions in the reactor pressure vessel which were mentioned above For such an H2 H2O... 

Figure 6.6 Large-scale production and characterisation of SILP and SCILL catalyst materials. Left a schematic drawing of the toroidal movement of the support particles in an air coater during impregnation with the solvent-diluted ionic liquid catalyst solution. Right an SF.M-EDX picture for material characterisation, exemplified for a spherical y-alumina coated with (RurCOloClolol in rCjdmimirOTfl to check the elemental distribution ruthenium Tdark grey area at the external surface of the catalyst pelleti sulfur Hight grey spots distributed over the catalyst pellet ilOOl.

H Owen, D Battey, MJ Pelletier, JB Slater. New spectroscopic instruments based on volume holographic optical elements. Bellingham, WA SPIE, 1995, pp 260-267. 

Figure 17.9 Miniaturized guarded hot plate device (65 mm x 65 mm maximum sample size, in-house development, EMPA Building Science and Technology Laboratory), a Hot side measurement plate, b Sample, c Pelletier cooling element.

Figure 5 (a) Sample preparation/presentation for Raman spectroscopy. Adapted partly from Everall, N. In Analytical Applications of Raman Spectroscopy, Pelletier, M. J., Ed. Blackwell Publishers Ames, 2000 Chapter 4, p 127. Sample preparation/presentation for (b) NIR spectroscopy and (c) IR ATR spectroscopy (dp, penetration depth of radiation into the sample rti//)2. refractive indices of reflection element/sample A, wavelength , angle of incidence of radiation on the interface of the reflection element/sample). 

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