New PDF release: Carotenoids Part A: Chemistry, Separation, Quantitation, and

By Lester Packer (Eds.)

ISBN-10: 0121821145

ISBN-13: 9780121821142

This quantity and its significant other, quantity 214 of Methods in Enzymology, current a finished, state of the art compilation of the molecular and mobile technique wanted for pursuing learn with carotenoids

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Additional info for Carotenoids Part A: Chemistry, Separation, Quantitation, and Antioxidation

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M. Cotton, FEBSLett. 182, 34 (1985). ~ I. R. Nabiev, R. G. Efremov, and G. D. Chumanov, J. Biosci. 8, 363 (1985). [4] SERS SPECTROSCOPY 33 Experimental P r o c e d u r e s Raman Instrumentation As in conventional Raman and resonance Raman (RR) spectroscopy, lasers are used to excite SERS/SERRS. In most instances, continuous-wave gas lasers, such as Ar + or Kr +, have been used, although pulsed lasers may be used as well. The advantage of the latter is that time-resolved spectra are obtained, and these can provide mechanistic information.

After evaporation of THF under reduced pressure, the residue is extracted with ether. The organic layer is washed with brine and dried (Na2SO4). 88 g, 89%). 151). 1oW. J. Scott, M. R. Pefia, K. Sw~ird, S. J. Stoessel, and J. K. StiUe, J. Org. Chem. 50, 2302 (1985). H E. Widmer, PureAppl. Chem. 57, 741 (1985). ~2j. E. McMurry and W. J. Scott, Tetrahedron Lett. 24, 979 (1983). 5 Eq) in dry DMF (45 ml) is added Pd(PPh3)2C12~° (330 mg, 3 mol%). The mixture is heated with stirring at 75 ° for 22 hr under N 2.

In most instances, continuous-wave gas lasers, such as Ar + or Kr +, have been used, although pulsed lasers may be used as well. The advantage of the latter is that time-resolved spectra are obtained, and these can provide mechanistic information. The two most common sample illumination geometries for solution Raman and R R samples seen in Fig. 1A and B involve collection of the scattered light at 90 ° relative to the incident angle or in the backscattering mode. In SERS/ SERRS, the laser light is focused on the sample (adsorbed on a substrate, see below) at an incident angle of approximately 60 °, as seen in Fig.

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Carotenoids Part A: Chemistry, Separation, Quantitation, and Antioxidation by Lester Packer (Eds.)


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