TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

... a specialized technique used to provide information about the geographic, chemical, and biological origins of substances.  1, record 1, English, - isotope%20ratio%20mass%20spectrometry

Record number: 1, Textual support number: 1 OBS

The ability to determine the source of an organic substance stems from the relative isotopic abundances of the elements which comprise the material. Because the isotope ratios of elements such as carbon, hydrogen, oxygen, sulfur, and nitrogen can become locally enriched or depleted through a variety of kinetic and thermodynamic factors, measurement of the isotope ratios can be used to differentiate between samples which otherwise share identical chemical compositions.  1, record 1, English, - isotope%20ratio%20mass%20spectrometry

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

De nombreuses méthodes de contrôle basées sur la détermination des teneurs en isotopes stables ont ainsi vu le jour. Ces méthodes utilisent principalement deux techniques analytiques : 1-La spectrométrie de masse de rapports isotopiques(SMRI), qui permet la mesure des teneurs moyennes en isotopes stables d’un composé organique choisi comme cible. Ainsi, la mesure des déviations isotopiques des isotopes lourds des cinq éléments majeurs de la matière organique(H, C, N, O, S) est aisément réalisée à l'aide de spectromètres dédiés à ces applications.  1, record 1, French, - spectrom%C3%A9trie%20de%20masse%20de%20rapports%20isotopiques

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 CONT

La técnica analítica más habitual para la determinación de relaciones isotópicas de elementos ligeros es la espectrometría de masas de relaciones isotópicas.  1, record 1, Spanish, - espectrometr%C3%ADa%20de%20masas%20de%20relaciones%20isot%C3%B3picas

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

Amino acid nitrogen exclusive of proline (an imino acid), usable by yeasts, ammonia is not included.  2, record 2, English, - free%20amino%20nitrogen

Record number: 2, Textual support number: 1 CONT

Protease activity was determined by the measurement of free amino nitrogen (FAN) or the amount of tyrosine liberated (Folin's method). [Source: ethanol project - Cmpdxwor.en p. 1].  3, record 2, English, - free%20amino%20nitrogen

Record number: 2, Textual support number: 2 CONT

Application of biological acidification to improve the quality, flavour and processability of beer produced with twenty percent raw barley. ... A decoction mashing programme was applied to the pilot scale brews. Characteristics of the laboratory scale mashes and the pilot scale brews examined included mash pH, extract, colour, filterability, viscosity, total soluble nitrogen (TSN), free amino nitrogen (FAN), high molecular weight nitrogen (HMWN), fermentability, beta glucan, zinc, foam stability and sugar and amino-acid profiles.  4, record 2, English, - free%20amino%20nitrogen

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Pour évaluer l’activité de la protéase, nous avons dosé l’azote aminé libre ou mesuré la quantité de tyrosine libérée (méthode de Folin). [Source: projet éthanol - Cmpdxwor.fr p. 1].  2, record 2, French, - azote%20amin%C3%A9%20libre

Record number: 2, Textual support number: 2 CONT

Il existe différentes méthodes d’analyses qui permettent d’estimer les teneurs en azote ammoniacal et/ou en azote aminé des moûts de raisin : dosage enzymatique ou méthode de Boussingault pour doser l'azote ammoniacal, détermination de l'azote aminé libre par réaction colorée avec la ninhydrine [en anglais :«FAN» :«free amino nitrogen»], méthode de Sörensen ou formoltitration pour doser l'azote assimilable(Aerny, 1996).  3, record 2, French, - azote%20amin%C3%A9%20libre

Record 2,  Textual support,  Spanish