TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

The detectors that are used in ultraviolet-visible spectrophotometry measure photons. If these photon detectors are replaced by a detector that measures pressure waves, the technique is known as photoacoustic, or optoacoustic, spectrometry. Photoacoustic spectrometers typically employ microphones or piezoelectric transducers as detectors.  3, record 1, English, - photoacoustic%20spectrometry

Record number: 1, Textual support number: 2 CONT

… photoacoustic spectrometry uses the thermal expansion of light-absorbing particles caused by the transfer of radiative energy into thermal energy.  4, record 1, English, - photoacoustic%20spectrometry

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

La spectrométrie optoacoustique est […] une mesure indirecte d’une absorption induite par laser; on mesure une variation de pression(l'échauffement rapide et localisé provoque une dilatation) proportionnelle à la concentration, au moyen d’une cellule piézoélectrique.  1, record 1, French, - %20spectrom%C3%A9trie%20optoacoustique

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

The coupling of isoelectric focusing on immobilized pH gradients (IPG) with electrospray-mass spectrometry (ES-MS) was applied to the characterization of proteins according to two different and important properties, such as net surface charge and molecular mass. From a technical point of view, these methods are complementary, since ES- MS requires ion-free samples as usually supplied by isoelectric focusing on IPGs.  3, record 2, English, - Electrospray%2DMass%2DSpectrometry

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

[...] la spectrométrie de masse tient une grande place dans la panoplie des techniques analytiques. Les méthodes d’ionisation, connues sous le nom d’ES-MS(Electrospray-Mass Spectrometry), de MALDI(Matrix Assisted Laser Ionization), permettent la caractérisation des protéines recombinantes, la détermination des modifications post-traductionnelles(glycolysation, acylation, phosphorilation...) de protéines de haut poids moléculaire(jusqu'à 300 kDa), et l'étude des complexes non covalents formés par le récepteur et son ligand.  1, record 2, French, - m%C3%A9thode%20d%27ES%2DMS

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

Raman spectroscopy has advanced rapidly since the laser was first introduced as the source of excitation. The advantages of the laser are that it produces a powerful beam of monochromatic, coherent radiation vastly superior to that obtained with other Raman sources such as the Toronto arc.  3, record 3, English, - laser%20Raman%20spectroscopy

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

La spectrométrie Raman laser résolue dans le temps prend une dimension particulièrement intéressante en associant des lasers fonctionnant en régime impulsionnel avec le spectromètre multicanal.  1, record 3, French, - spectrom%C3%A9trie%20Raman%20laser

Record 3,  Textual support,  Spanish