国际纯粹与应用化学联合会

为此，国际纯粹与应用化学联合会（InternationalUnionofPureandAppliedChemistry，简称IUPAC）制定了一系列的规则，用来规范有机化合物的命名。

So many names are easy to cause confusion . Considering this situation , International Union of Pure and Applied Chemistry ( IUPAC ) defined a series of rules to standardize the naming of organic compounds .

国际纯粹与应用化学联合会（InternationalUnionofPureandAppliedChemistry）上周宣布，日本理化学研究所（Riken）的科学家将拥有给第113号元素正式命名的权利。

Scientists from the Riken institute in Japan will bestow an official name on Element 113 , currently known by the placeholder name ununtrium , the International Union of Pure and Applied Chemistry announced last week .

这四个元素由位于美国的国际纯粹与应用化学联合会于12月30日证实，这个世界性的组织负责着化学界的命名法、术语和测量。

The four were verified on 30 December by the US-based International Union of Pure and Applied Chemistry , the global organisation that governs chemical nomenclature , terminology and measurement .

国际纯粹与应用化学联合会宣称，一支由俄罗斯杜布纳联合原子核研究所与美国加利福尼亚劳伦斯利弗莫尔国家实验室的美俄科学家组成的队伍，已掌握了充分的证据来证实115号、117号和118号元素的存在。

IUPAC announced that a Russian-American team of scientists at the Joint Institute for Nuclear Research in Dubna and Lawrence Livermore National Laboratory in California had produced sufficient evidence to claim the discovery of elements 115 , 117 and 118 .