Microwave plasma–atomic emission spectrometer
The model 4100 microwave plasma–atomic emission spectrometer from Agilent is designed to run on air. According to the company, the device uses a nitrogen-based plasma that runs on air and does not require external cylinder connections or gases. Agilent Technologies, Santa Clara, CA;
http://www.agilent.com/

Spectrometer application note
Teledyne's application note on the analysis of trace elements in tungsten carbide using the company's Prodigy DC Arc spectrometer is now available at
http://www.teledyneleemanlabs.com/resources/applications/dc_arc/1078-Tungsten_Carbide.pdf. The publication discusses the ability of the instrument to analyze tungsten carbide samples in solid form. Teledyne Leeman Labs, Hudson, NH;
http://www.teledyneleemanlabs.com/

Solar analysis system
The RaySphere spectroscopic system from Ocean Optics is designed for irradiance measurements in the 380–1700 nm range. According to the company, the system includes two thermoelectrically cooled detectors. Applications include absolute irradiance measurements of solar simulators and other radiant sources. Ocean Optics, Dunedin, FL;
http://www.oceanoptics.com/

Glow discharge spectrometry application information
LECO's application notes for glow discharge-atomic emission spectrometry describe the analysis of titanium alloy, tin-based lead-free solder, and boron in low-alloy steel. The notes feature the company's GDS500A instrument, which uses the glow discharge method to uniformly sputter material from the sample's surface. LECO Corporation, St. Joseph, MI;
http://www.leco.com/