Discovery of rubidium, strontium, molybdenum, and rhodium isotopes

Abstract

Currently, thirty-one rubidium, thirty-five strontium, thirty-five molybdenum and thirty-eight rhodium isotopes have been observed and the discovery of these isotopes is discussed here. For each isotope a brief synopsis of the first refereed publication, including the production and identification method, is presented.

2014 update of the discoveries of nuclides

“…The assignments of early papers from the Institute of Physical and Chemical Research in Tokyo were incorrectly assigned to the University of Tokyo instead of RIKEN. [39][40][41][42] A total of 12 isotopes were reassigned ( 92 Y, 43 89 Zr, 44 92,94 Nb, 45 91,99 Mo, 44 102 Rh, 46 185,187 W, 47 186,188 Re, 48 and 237 U 49 ). Also, the assignment 2 of 169 Ho was changed from Tokyo to the Japan Atomic Energy Research Institute at Tokai.…”

Determination of Rhodium From Wastewater Samples Using Icp-Eos Technique

“…(Panahi 2009). Rhodium found in nature consists of one isotope, 103 Rh of the thirty-eight discovered so far (Parker 2012). The most commonly used analytical techniques for rhodium determination are: graphite furnace atomic absorption spectrometry (GFAAS) (Su 2001, Zimmermann 2003, instrumental neutron activation analysis (INAA) (Dai 2001), adsorptive stripping voltammetry (ASV) (Georgieva 1997), inductively coupled plasma-atomic emission spectrometry (ICP-AES) (Kovacheva 2002) and inductively coupled plasma-mass spectrometry (ICP-MS) (Petrucci 2000, Niemela 2004, Djingova 2003, Gomez 2000, Resano 2007, Muzikar 2006.…”

Assessment of Using 99Mo and 99mTc Isotopes in Kuwait Medical Sector

“…M olybdenum (Mo) was discovered by Swedish chemist Peter Jacob Hjelm in 1781, and its radioactive isotopes are made using light-particle reactions, fusion-evaporation reactions, neutron- and charged particle-induced fission, and projectile fragmentation or fission (Advameg 2015; Parker and Thoennessen 2012). Mo is used to generate other radioactive isotopes that are medically important.…”

“…Typically generated radioactive isotopes include technetium (Tc) in the isotopes of 99m Tc, 99m Tc (m + g), and 94m Tc, with 99m Tc being one of the most important. The letter “m” means that the isotope is metastable, indicating the short half-life of this isotope (e.g., 99m Tc has a half-life of approximately 6 h) (Parker and Thoennessen 2012). The short half-life prevents the isotope from being stored for a long period of time; therefore, continued production is necessary.…”