| 单词 | radioactivation analysis |
| 释义 | > as lemmasradioactivation analysis radioactivation analysis n. chemical analysis in which a sample is made radioactive by exposure to radiation and its components are then identified, and their concentrations measured, by radiochemical method; also called activation analysis. ΘΚΠ the world > matter > chemistry > chemical assay or analytical chemistry > [noun] > acetimetry > other analytical techniques alkalimetry1817 refraction1831 Hofmann method1876 cryoscopy1885 Reichert–Meissl1887 oxidimetry1896 Hofmann exhaustive methylation1938 workup1942 radioactivation analysisa1947 neutron activation analysis1947 activation analysis1948 a1947 H. M. Clark & R. T. Overman in Determination Trace Elem. by Radioactivation Anal. (U.S. Atomic Energy Comm. Rep. MDDC–1329) (1947) 1 The potential uses of radioactivation analysis for the determination of trace amounts of substances have been recognized for some time. 1955 C. L. Comar Radioisotopes Biol. & Agric. x. 415 Radioactivation analysis of manganese in aluminum was accomplished readily, since the aluminum radioisotope has a half-life of 2.3 min, whereas that of manganese has a half-life of 2.59 hr. 1994 Jrnl. Nucl. Materials 212–5 A. 823 The impurity concentrations in the materials were measured by neutron radioactivation analysis. < as lemmas |
| 随便看 |
|
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。