You need JavaScript to view this

Study of pentane and cyclopentane radiolysis with the aid of radioactive iodine; Etude de la radiolyse du pentane et du cyclopentane a l'aide d'iode radioactif; Issledovanie radioliza pentana i tsiklopentana s pomoshch'yu radioaktivnogo joda; Estudio de la radiolisis del pentano y del ciclopentano con ayuda de yodo radiactivo

Conference:

Abstract

Irradiation of hydrocarbons by ionizing radiation such as Co{sup 60} gamma-rays produces, inter alia, free radicals. Analysis of these radicals may lead to at least a partial explanation of the phenomena occurring. For analysis, the ''isotopic dilution'' method is used: the iodine used for taking up the radicals is labelled with iodine-131, resulting in a whole series of labelled iodides when the reaction is completed. Separation is affected by means of distillation on a microcolumn after inactive carriers have been added and the mineral iodine has been extracted. The activity of each fraction is measured directly it leaves the column. A control is used to obtain absolute G values from the counting. Precautions are taken to prevent isotopic exchange during separation. This method has been applied to cyclopentane and n-pentane and has yielded a detailed radiolysis spectrum. (author) [French] Les hydrocarbures irradies par des rayonnements ionisants tels que les {gamma} du cobalt-60 produisent entre autres entites des radicaux libres, dont l'analyse peut amener a decouvrir une explication au moins partielle des phenomenes. Pour effectuer cette analyse, on utilise la technique de la : l'iode servant de capteur est marque par de l'iode-131, ce qui a pour resultat de donner  More>>
Authors:
Dauphin, J [1] 
  1. Laboratoire de Chimie-Physique, Faculte des Sciences de Paris (France)
Publication Date:
Mar 15, 1962
Product Type:
Conference
Resource Relation:
Conference: Conference on the Use of Radioisotopes in the Physical Sciences and Industry, Copenhagen (Denmark), 6-17 Sep 1960; Other Information: 2 figs, 1 tab, 20 refs; Related Information: In: Radioisotopes in the Physical Sciences and Industry. Proceedings of the Conference on the Use of Radioisotopes in the Physical Sciences and Industry. V. III| 652 p.
Subject:
07 ISOTOPES AND RADIATION SOURCES; CONTROL; DISTILLATION; GAMMA RADIATION; IODIDES; IODINE; IODINE 131; IRRADIATION; ISOTOPE DILUTION; ISOTOPIC EXCHANGE; MINERALS; PENTANE; RADIOLYSIS; SPECTRA
OSTI ID:
22025747
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); United Nations Educational, Scientific and Cultural Organization, Paris (France)
Country of Origin:
IAEA
Language:
French
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA12N1763113040
Submitting Site:
INIS
Size:
page(s) 471-482
Announcement Date:
Jan 16, 2013

Conference:

Citation Formats

Dauphin, J. Study of pentane and cyclopentane radiolysis with the aid of radioactive iodine; Etude de la radiolyse du pentane et du cyclopentane a l'aide d'iode radioactif; Issledovanie radioliza pentana i tsiklopentana s pomoshch'yu radioaktivnogo joda; Estudio de la radiolisis del pentano y del ciclopentano con ayuda de yodo radiactivo. IAEA: N. p., 1962. Web.
Dauphin, J. Study of pentane and cyclopentane radiolysis with the aid of radioactive iodine; Etude de la radiolyse du pentane et du cyclopentane a l'aide d'iode radioactif; Issledovanie radioliza pentana i tsiklopentana s pomoshch'yu radioaktivnogo joda; Estudio de la radiolisis del pentano y del ciclopentano con ayuda de yodo radiactivo. IAEA.
Dauphin, J. 1962. "Study of pentane and cyclopentane radiolysis with the aid of radioactive iodine; Etude de la radiolyse du pentane et du cyclopentane a l'aide d'iode radioactif; Issledovanie radioliza pentana i tsiklopentana s pomoshch'yu radioaktivnogo joda; Estudio de la radiolisis del pentano y del ciclopentano con ayuda de yodo radiactivo." IAEA.
@misc{etde_22025747,
title = {Study of pentane and cyclopentane radiolysis with the aid of radioactive iodine; Etude de la radiolyse du pentane et du cyclopentane a l'aide d'iode radioactif; Issledovanie radioliza pentana i tsiklopentana s pomoshch'yu radioaktivnogo joda; Estudio de la radiolisis del pentano y del ciclopentano con ayuda de yodo radiactivo}
author = {Dauphin, J}
abstractNote = {Irradiation of hydrocarbons by ionizing radiation such as Co{sup 60} gamma-rays produces, inter alia, free radicals. Analysis of these radicals may lead to at least a partial explanation of the phenomena occurring. For analysis, the ''isotopic dilution'' method is used: the iodine used for taking up the radicals is labelled with iodine-131, resulting in a whole series of labelled iodides when the reaction is completed. Separation is affected by means of distillation on a microcolumn after inactive carriers have been added and the mineral iodine has been extracted. The activity of each fraction is measured directly it leaves the column. A control is used to obtain absolute G values from the counting. Precautions are taken to prevent isotopic exchange during separation. This method has been applied to cyclopentane and n-pentane and has yielded a detailed radiolysis spectrum. (author) [French] Les hydrocarbures irradies par des rayonnements ionisants tels que les {gamma} du cobalt-60 produisent entre autres entites des radicaux libres, dont l'analyse peut amener a decouvrir une explication au moins partielle des phenomenes. Pour effectuer cette analyse, on utilise la technique de la : l'iode servant de capteur est marque par de l'iode-131, ce qui a pour resultat de donner toute une serie d'iodures marques en fin de reaction. La separation se fait par distillation sur une microcolonne, apres addition d'entraineurs inactifs et extraction de l'iode mineral. L'activite de chaque fraction est mesuree directement a la sortie de la colonne. Un temoin permet l'obtention de valeurs absolues de G a partir des comptages. Des precautions sont prises pour eviter l'echange isotopique en cours de separation. Appliquee au cyclopentane et au n-pentane, cette methode a permis d'obtenir un spectre detaille de radiolyse. (author) [Spanish] La exposicion de los hidrocarburos a la accion de radiaciones ionizantes tales como los rayos gamma del {sup 60}Co da lugar a la formacion de radicales libres. Es posible que el analisis de estos radicales permite explicar, por lo menos parcialmente, los fenomenos observados. El autor efectua el analisis por : el yodo empleado como receptor se marca con yodo-131, por lo que al final de la reaccion se obtiene toda una serie de yoduros marcados. Lleva a cabo la separacion por destilacion en una microcolumna despues de haber anadido portadores inactivos y extraido el yodo inorganico. La actividad de cada fraccion se mide directamente a la salida de la columna. Los valores absolutos del coeficiente G se determinan por recuento de la actividad de una muestra testigo. El autor adopta las precauciones necesarias para evitar el intercambio isotopico durante la separacion. El metodo se aplico al ciclopentano y al n-pentano, habiendose obtenido un espectro de radiolisis detallado. (author) [Russian] Uglevodorody, obluchennye ioniziruyushchimi luchami, takimi, kak gamma-luchi kobal'ta-60, sredi drugikh veshchestv dayut svobodnye radikaly. Analiz ehtikh radikalov mozhet privesti k chastichnomu ob{sup y}asneniyu yavlenij. CHtoby osushchestvit' ehtot analiz, primenyayut metod ''izotopnogo razbavleniya'': jod, sluzhashchij ulovitelem, metyat jodom-131, chto privodit k tomu, chto v kontse reaktsii poluchaetsya tselaya seriya mechenykh jodidov. Razdelenie osushchestvlyaetsya peregonkoj na mikrokolonnom apparate posle dobavleniya neaktivnykh nositelej i izvlecheniya svobodnogo joda. Aktivnost' kazhdoj fraktsii izmeryaetsya pryamo posle vykhoda iz kolonki. Znak daet vozmozhnost' poluchit' absolyutnye znacheniya G ot nachala scheta. Byli prinyaty mery predostorozhnosti, chtoby izbezhat' izotopnogo obmena vo vremya razdeleniya. EHtot metod primenyalsya k tsiklopentanu i k p-pentanu i pozvolil poluchit' podrobnyj spektr radioliza. (author)}
place = {IAEA}
year = {1962}
month = {Mar}
}