Site-specific bromination of aromatic compounds: a rapid method for radiobromine labelling

1982 ◽  
pp. 625 ◽  
Author(s):  
Michael J. Adam ◽  
Thomas J. Ruth ◽  
Brian D. Pate ◽  
Laurance D. Hall
Keyword(s):  
Rapid Method ◽  
Aromatic Compounds ◽  
Site Specific

scholarly journals Nuclease protection of RNAs containing site-specific labels: A rapid method for mapping RNA–protein interactions

RNA ◽  
2000 ◽  
Vol 6 (12) ◽  
pp. 1905-1909 ◽  
Author(s):  
PATRICIA A. MARONEY ◽  
CHARLES M. ROMFO ◽  
TIMOTHY W. NILSEN
Keyword(s):  
Rapid Method ◽  
Protein Interactions ◽  
Site Specific

A Simple and Rapid Method for Determination of Guayule Rubber

1986 ◽  
Vol 59 (2) ◽  
pp. 204-207 ◽  
Author(s):  
Sarina Grinberg ◽  
Eleonora Shaubi
Keyword(s):  
Rapid Method ◽  
Analytical Method ◽  
Aromatic Compounds ◽  
Turbidimetric Assay ◽  
Protection Agent

Abstract An improved turbidimetric analytical method for guayule rubber was developed. The method is simpler and faster than previously developed turbidimetric methods, and enables the use of commercial solutions of the rubber. Unlike Traub and Perry, who used diisobutyl ketone for extraction of guayule rubber for turbidimetric measurements, we used hexane, which did not extract aromatic compounds along with the rubber, thus giving the best yield of spectrally clean rubber. Propanol is our precipitant of choice for turbidimetric assay of rubber, since it is also good as a colloid-protection agent.

scholarly journals Iodination of Alkylbenzenes using Benzyltriphenylphosphonium Dichromate / I2 System

2009 ◽  
Vol 6 (4) ◽  
pp. 1164-1166 ◽  
Author(s):  
R. Sathiyapriya ◽  
R. Joel Karunakaran
Keyword(s):  
Rapid Method ◽  
Aromatic Compounds ◽  
Solvent System ◽  
Molecular Iodine ◽  
High Yields ◽  
Alkyl Benzenes

An efficient and rapid method have been found using benzyltriphenylphosphonium dichromate (PhCH2PPh3)2Cr2O7as an oxidant along with molecular iodine for the iodination of aromatic compounds. Iodination of a wide variety of alkyl benzenes were done under dichloromethane solvent system and high yields of iodo products were obtained

Large-cluster and combined fluorescent and gold immunoprobes

1996 ◽  
Vol 54 ◽  
pp. 892-893
Author(s):  
Richard D. Powell ◽  
James F. Hainfeld ◽  
Carol M. R. Halsey ◽  
David L. Spector ◽  
Shelley Kaurin ◽  
...  
Keyword(s):  
Metal Cluster ◽  
Sulfonyl Chloride ◽  
Gel Filtration ◽  
Cross Linking ◽  
Site Specific ◽  
Fab Fragments ◽  
Cluster Label ◽  
Covalently Linked ◽  
Texas Red ◽  
Fold Excess

Two new types of covalently linked, site-specific immunoprobes have been prepared using metal cluster labels, and used to stain components of cells. Combined fluorescein and 1.4 nm “Nanogold” labels were prepared by using the fluorescein-conjugated tris (aryl) phosphine ligand and the amino-substituted ligand in the synthesis of the Nanogold cluster. This cluster label was activated by reaction with a 60-fold excess of (sulfo-Succinimidyl-4-N-maleiniido-cyclohexane-l-carboxylate (sulfo-SMCC) at pH 7.5, separated from excess cross-linking reagent by gel filtration, and mixed in ten-fold excess with Goat Fab’ fragments against mouse IgG (obtained by reduction of F(ab’)2 fragments with 50 mM mercaptoethylamine hydrochloride). Labeled Fab’ fragments were isolated by gel filtration HPLC (Superose-12, Pharmacia). A combined Nanogold and Texas Red label was also prepared, using a Nanogold cluster derivatized with both and its protected analog: the cluster was reacted with an eight-fold excess of Texas Red sulfonyl chloride at pH 9.0, separated from excess Texas Red by gel filtration, then deprotected with HC1 in methanol to yield the amino-substituted label.

Texture measurements in Al2O3 using BEKP

1994 ◽  
Vol 52 ◽  
pp. 608-609
Author(s):  
M. D. Vaudin ◽  
J. P. Cline
Keyword(s):  
Neutron Diffraction ◽  
Rapid Method ◽  
Crystallographic Orientation ◽  
Specimen Surface ◽  
X Ray Diffraction ◽  
Anisotropic Crystal ◽  
X Ray ◽  
Verification Method ◽  
Crystal Properties ◽  
Backscattered Electron

The study of preferred crystallographic orientation (texture) in ceramics is assuming greater importance as their anisotropic crystal properties are being used to advantage in an increasing number of applications. The quantification of texture by a reliable and rapid method is required. Analysis of backscattered electron Kikuchi patterns (BEKPs) can be used to provide the crystallographic orientation of as many grains as time and resources allow. The technique is relatively slow, particularly for noncubic materials, but the data are more accurate than any comparable technique when a sufficient number of grains are analyzed. Thus, BEKP is well-suited as a verification method for data obtained in faster ways, such as x-ray or neutron diffraction. We have compared texture data obtained using BEKP, x-ray diffraction and neutron diffraction. Alumina specimens displaying differing levels of axisymmetric (0001) texture normal to the specimen surface were investigated.BEKP patterns were obtained from about a hundred grains selected at random in each specimen.

Sign in / Sign up

Export Citation Format

Share Document