Now showing items 31-40 of 585
Determination of adrenaline and noradrenaline by resonance Raman spectrometry
(Elsevier, 1976-01)
Aminochromes of adrenaline and noradrenaline show resonance Raman scattering at 1480 and 1430 cm-1 respectively, with Ar+ excitation. Scattering intensity is a linear function of concentration. Detection limits are 1 x ...
Separation of bile acids from neutral lipids on thin-layer chromatograms
(Elsevier, 1974-11-13)
A game to help students comprehend enzyme structure and mechanism of action
(Elsevier, 1976-01)
Flow equations for graphite
(Elsevier, 1976)
In analyzing erosion of graphite at high strain rate (~107 sec-1) and temperature (~4000[deg]C), it is necessary to have some approximation for the constitutive equation. Data for graphite from static and low strain rate ...
Synthesis of [4.2]cyclophanes
(Elsevier, 1978)
Vinyl -xylylene cross-dimerizes with other xylylene-type intermediates to yield cycloadducts of the [8+6] and [6+6] type. This reaction provides a simple entry to the [4.2]paracyclophane system as well as the analogous ...
Determination of iodoamino acids and inorganic lodide by thin-layer chromatography
(Elsevier, 1970-10)
A method has been presented for the separation of monoiodotyrosine diiodotyrosine, diiodothyronine, triiodothyronine, thyroxine, and inorganic iodide from one another by thin-layer chromatography on silica gel. The solvent ...
Heat capacity of Th(NO3)4[middle dot]5H2O from 5 to 350 K
(Elsevier, 1976-01)
The heat capacity of crystalline Th(NO3)4[middle dot]5H2O has been determined by adiabatic calorimetry primarily to enable evaluation of the standard partial molar entropy and heat capacity of aqueous thorium(IV) ion. No ...
Optically detected zero field magnetic resonance of phosphorous activated alkali halide crystals
(Elsevier, 1977-10-15)
Optically detected zero field magnetic resonance (ODMR) has been utilized to obtain the fine structure parameters |D| and |E| of the phosphorescent color center in phosphorous activated potassium chloride and bromide single ...
Extraction, separation and labeling with 14 C-glucose of hela cell polyglucose, RNA and DNA and comparison of the molecular weights and buoyant densities of polyglucose from poliovirus-infected and noninfected cultures
(Wiley Subscription Services, Inc., A Wiley Company, 1970-01)
The aqueous phase of phenol extracts of HeLa cells contains polyglucose (CHO) n , RNA, and DNA. These macromolecules were precipitated together and removed from 50% (v/v) ethanol solutions with a stirring rod. The viscous ...