Measurement of the Adsorption of Surface-Active Agent at a Solution - Air Interface by a Radiotracer Method
THE adsorption of a water-soluble surface-active agent at a solution - air interface has been measured by taking unique advantage of the soft beta radiation from the radioactive isotope of sulphur, S35. The method depends upon the fact that, because of 'self-absorption' of the radiation by...
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| Veröffentlicht in: | Nature 1949-05, Vol.163 (4152), p.845-845 |
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| container_issue | 4152 |
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| creator | DIXON, J. K WEITH, A. J ARGYLE, A. A SALLEY, D. J |
| description | THE adsorption of a water-soluble surface-active agent at a solution - air interface has been measured by taking unique advantage of the soft beta radiation from the radioactive isotope of sulphur, S35. The method depends upon the fact that, because of 'self-absorption' of the radiation by the solution, the amount of radiation escaping from a solution of a compound containing this isotope comes principally from that fraction of the sulphur which is near the surface. Since the molecules of a surface-active agent are preferentially adsorbed at the interface, the radioactivity above a solution containing such an agent labelled with radiosulphur should be higher than the activity from a solution (for example, of sodium sulphate) in which no surface adsorption occurs. |
| doi_str_mv | 10.1038/163845a0 |
| format | Article |
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J</au><aucorp>Originating Research Org. not identified</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of the Adsorption of Surface-Active Agent at a Solution - Air Interface by a Radiotracer Method</atitle><jtitle>Nature</jtitle><stitle>Nature</stitle><addtitle>Nature</addtitle><date>1949-05-28</date><risdate>1949</risdate><volume>163</volume><issue>4152</issue><spage>845</spage><epage>845</epage><pages>845-845</pages><issn>0028-0836</issn><eissn>1476-4687</eissn><abstract>THE adsorption of a water-soluble surface-active agent at a solution - air interface has been measured by taking unique advantage of the soft beta radiation from the radioactive isotope of sulphur, S35. The method depends upon the fact that, because of 'self-absorption' of the radiation by the solution, the amount of radiation escaping from a solution of a compound containing this isotope comes principally from that fraction of the sulphur which is near the surface. Since the molecules of a surface-active agent are preferentially adsorbed at the interface, the radioactivity above a solution containing such an agent labelled with radiosulphur should be higher than the activity from a solution (for example, of sodium sulphate) in which no surface adsorption occurs.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>18129708</pmid><doi>10.1038/163845a0</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | ABSORPTION ADSORPTION AIR ALKYL RADICALS BETA PARTICLES Chemical Phenomena Chemistry, Physical EQUATIONS GEIGER-MUELLER COUNTERS GIBBS ADSORPTION EQUATION Humanities and Social Sciences LAYERS letter MEASURED VALUES MOLECULES multidisciplinary Old Medline ORGANIC SULFUR COMPOUNDS PHYSICS QUANTITY RATIO RADIOACTIVITY Science Science (multidisciplinary) SODIUM COMPOUNDS SODIUM SULFATES SOLUTIONS SUCCINIC ACID SULFUR 35 Surface-Active Agents SURFACES TRACER TECHNIQUES |
| title | Measurement of the Adsorption of Surface-Active Agent at a Solution - Air Interface by a Radiotracer Method |
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