Laser Desorption Time-of-Flight Mass Spectrometry of Inorganic Nanoclusters: An Experiment for Physical Chemistry or Advanced Instrumentation Laboratories

被引：13

作者：

Ayers, Timothy M. ^{[1
]}

Akin, Scott T. ^{[1
]}

Dibble, Collin J. ^{[1
]}

Duncan, Michael A. ^{[1
]}

机构：

[1] Univ Georgia, Dept Chem, Athens, GA 30602 USA

来源：

JOURNAL OF CHEMICAL EDUCATION | 2014年 / 91卷 / 02期

基金：

美国国家科学基金会;

关键词：

Upper-Division Undergraduate; Inorganic Chemistry; Physical Chemistry; Analytical Chemistry; Laboratory Instruction; Hands-On Learning/Manipulatives; Gases; Lasers; Mass Spectrometry; BISMUTH OXIDE CLUSTERS; IDENTIFICATION; ANTIMONY; DESORPTION/IONIZATION; SULFUR; IONS;

D O I：

10.1021/ed4003942

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

New experiments for the undergraduate laboratory are described using laser desorption time-of-flight (TOF) mass spectrometry to produce and analyze a variety of inorganic nanoclusters. Laser vaporization of solid powder samples of sulfur, phosphorus, and bismuth all produce gas-phase cluster ions with unusual mass spectral patterns. This experiment provides an introduction to TOF mass spectrometry and ultrasmall nanoclusters, as well as hands-on experience in vacuum systems, lasers, oscilloscopes, and pulsed electronics. New concepts in chemical bonding for inorganic materials are explored.

引用

页码：291 / 296

页数：6

共 41 条

[1] Identifying Gel-separated Proteins Using In-gel Digestion, Mass Spectrometry, and Database Searching [J].