Isotopic labeling — (or isotopic labelling) is a technique for tracking the passage of a sample of substance through a system. The substance is labeled by including unusual isotopes in its chemical composition. If these unusual isotopes are later detected in a… … Wikipedia
Isotopic signature — An isotopic signature (also isotopic fingerprint) is a ratio of stable or unstable isotopes of particular elements found in an investigated material. The atomic mass of different isotopes affect their chemical kinetic behavior, leading to natural … Wikipedia
isotopic tracer — ▪ chemistry any radioactive atom detectable in a material in a chemical, biological, or physical system and used to mark that material for study, to observe its progress through the system, or to determine its distribution. An isotopic… … Universalium
radioactive tracers — žymėtieji atomai statusas T sritis chemija apibrėžtis Radioaktyvūs, kartais ir stabilūs izotopai, vartojami medžiagoms žymėti. atitikmenys: angl. isotopic tracers; labelled atoms; radioactive tracers; radioisotope tracers; tagged atoms; tracer… … Chemijos terminų aiškinamasis žodynas
radioisotope tracers — žymėtieji atomai statusas T sritis chemija apibrėžtis Radioaktyvūs, kartais ir stabilūs izotopai, vartojami medžiagoms žymėti. atitikmenys: angl. isotopic tracers; labelled atoms; radioactive tracers; radioisotope tracers; tagged atoms; tracer… … Chemijos terminų aiškinamasis žodynas
dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or … Universalium
Datation des eaux souterraines — Au sein des aquifères, l’âge des eaux souterraines, c est à dire de son temps de transfert de son point d’infiltration vers son exutoire naturel ou non (captage) peut varier du jour au(x) million(s) d’années suivant le contexte géologique et… … Wikipédia en Français
tracer — /tray seuhr/, n. 1. a person or thing that traces. 2. a person whose business or work is the tracing of missing property, parcels, persons, etc. 3. an inquiry sent from point to point to trace a missing shipment, parcel, or the like, as in a… … Universalium
labelled atoms — žymėtieji atomai statusas T sritis chemija apibrėžtis Radioaktyvūs, kartais ir stabilūs izotopai, vartojami medžiagoms žymėti. atitikmenys: angl. isotopic tracers; labelled atoms; radioactive tracers; radioisotope tracers; tagged atoms; tracer… … Chemijos terminų aiškinamasis žodynas
tagged atoms — žymėtieji atomai statusas T sritis chemija apibrėžtis Radioaktyvūs, kartais ir stabilūs izotopai, vartojami medžiagoms žymėti. atitikmenys: angl. isotopic tracers; labelled atoms; radioactive tracers; radioisotope tracers; tagged atoms; tracer… … Chemijos terminų aiškinamasis žodynas