isotopically

This is often an isotopically labeled version of the analyte.

This results in higher latitude waters being isotopically "light".

He used isotopically labeled oxygen-18 and radioactive chlorine to study these reactions.

Often the vitamin may be isotopically labeled to distinguish it from the same chemical substance already present.

The experiment uses a large amount of xenon, isotopically enriched in xenon-136.

The phosphorus donors are isotopically pure P, which have a nuclear spin of 1/2.

The technique is easier, quicker and more convenient than the clearance of isotopically labelled red cells.

The silicon substrate is isotopically pure 28Si which has nuclear spin 0 .

Bone recovered from archaeological sites can be analysed isotopically for information regarding diet and migration.

The study of petrographic fabrics forms the basis for later analytical research, both chemically and isotopically.

Proteins can be isotopically labelled by cultivating them in a medium containing nitrogen-15 as the only source of nitrogen.

Such CO can be converted to methane and from there to isotopically pure synthetic diamonds.

Subsequent separation procedures reduced the amount of isotopically pure einsteinium roughly tenfold.

In this example, a hydrogen atom has been isotopically labeled using deuterium (shown in red).

Concentrations are determined by measuring the ratio of the analyte to the appropriate isotopically labeled internal standard.

The name "proton" refers to isotopically pure H.

Most rock contains small amount of gases that can be isotopically distinguished from the normal atmospheric gases.

The precise molecular weights for common isotopically labelled amino acids are included in this module.

Reinoculation is supported by the evidence of isotopically lighter gas occurring near cleats in the coal beds.

His research focused on redox reactions, transition metals and the use of isotopically labeled compounds to follow reactions.

Isotopically enriched diamonds have been synthesized by application of chemical vapor deposition followed by high pressure.

The exact procedure depends on whether the protein is isotopically labelled or not, since a lot of the assignment experiments depend on carbon-13 and nitrogen-15.

Dipolar coupling are distance dependent, and so they may be used to calculate interatomic distances in isotopically labeled molecules.

Carbon in the rock, present as graphite, shows low levels of carbon-13, which may suggest an origin as isotopically light organic matter derived from living organisms.

The ratio of carbon-12 to carbon-13 in the atmosphere experienced a rapid shift, as large amounts of isotopically light carbon was released from an unknown source.