X-ray diffraction analysis

He returned to his earlier use of X-ray diffraction analysis.

Due to the small size, positive identification usually requires x-ray diffraction analysis.

X-ray diffraction analysis is required for positive identification.

X-ray diffraction analysis showed that the floating solid material was greater than 97 percent calcite.

X-ray diffraction analysis shows the that the new carbon-carbon bond is elongated (157 pm)

In other cases, minerals can only be classified by more complex optical, chemical or X-ray diffraction analysis; these methods, however, can be costly and time-consuming.

X-ray diffraction analysis (XRD)

Single crystal X-ray diffraction analysis of this compound shows considerable bond length alternation in the benzene ring (164.8 pm to 133.8 pm) ruling out aromaticity.

Although no crystallographic x-ray diffraction analyses have been published that depict the entire structure of ADAM10, one domain has been studied using this technique.

On October 17, 2012, the Curiosity rover on the planet Mars at "Rocknest" performed the first X-ray diffraction analysis of Martian soil.

The three-dimensional structures of both proteins were first determined by x-ray diffraction analysis; Perutz and Kendrew shared the 1962 Nobel Prize in Chemistry for these discoveries.

Zachariasen's X-ray diffraction analysis was an essential basis for experimental evidence that the transuranium elements formed a 5f series analogous to the 4f series of the rare earth elements.

According to X-ray diffraction analysis, the reagent traded under the name "cyclohexanehexone octahydrate" or equivalent names is actually dodecahydroxycyclohexane dihydrate, a solid that decomposes at 95 C.

X-ray diffraction analysis of this compound confirms that the cyclopentadienyl ligands are not co-planar with the benzene core but have alternating dihedral angles of +30 and 80 .

Microscopic and x-ray diffraction analysis of these artifacts shows the most likely source for these exotic ceramics lies in the Blue Ridge and southern Appalachian Piedmont Provinces.

The team conducted research at the AAS Station Lab at Arkansas State University involving macroscopic, microscopic, petrographic thin-sections, atomic absorption and x-ray diffraction analyses.

This process, developed in Germany, involves creating an elemental 'fingerprint' via WD-X-ray fluorescence analysis and X-ray diffraction analysis to determine the composition and amounts of trace elements presence in the sample.

An X-ray diffraction analysis confirmed what she'd suspected, that the sphere of carbon was what chemists call a fullerene or a "buckyball"-a hollow shell of double-bonded carbon atoms arranged like a Buckminster Fuller geodesic dome.

At the New York Public Library, a grand Beaux Arts temple on Fifth Avenue, conservationists examined samples of surface dirt by using X-ray diffraction analysis and infrared spectroscopy, which broke down the gray smears into their constituent elements.

His research covers a broad range of fields ranging from inorganic solid state chemistry, synthetic main group chemistry, biomimetic transition metal complex chemistry for modelling active sites in metalloproteins to metalloenzyme studies, including the isolation and structural characterization by X-ray diffraction analysis.

However, in 1998 X-ray diffraction analysis of the crystallized solid showed that the CN core is actually pyramidal, with the N atom lying approximately 0.28 Å off the carbons' plane (whereas in trimethylamine the distance is about 0.45 Å).

X-ray diffraction analysis of these crystals reveals a 4:5 inclusion complex with 4 molecules of ferrocene included in the cavity of 4 cyclodextrine molecules and with the fifth ferrocene molecule sandwiched between two stacks of ferrocene - cyclodextrine dimers.

Wilkins and Gosling had been carrying out X-ray diffraction analysis of DNA in the unit since May 1950, but Randall had not informed them that he had asked Franklin to take over both the DNA diffraction work and guidance of Gosling's thesis.