For Environment Analysis DUNEDIN, Fla., May 26 -- Ocean Optics offers a selection of laser-based systems that can be used to identify light to heavy metals in a variety of sample types and geometries in environmental analysis applications. The laser-induced breakdown spectrometer systems (LIBS) are real-time, high-
resolution analyzers for qualitative analysis -- in less than one second -- of every element in solids, solutions and gases and are ideal for environmental analysis applications including soil testing, agricultural runoff monitoring and plant tissue analysis.
Ocean Optics LIBS systems offer several advantages compared with traditional analysis techniques, such as XRF, ICPM and wet chemistry analysis. Consider its speed -- a complete scan of all elements is executed in less than a second -- which saves time and makes it possible to analyze samples that are transient in nature. Noncontact sampling makes LIBS especially useful for online and hazardous environments, and only trace amounts of the sample are required for analysis; minimal sample preparation is required. LIBS systems can be used in the laboratory or in the field and on any sample geometry.
In laser-induced breakdown spectroscopy, a single pulse from a high-intensity laser is focused on the sample area, exciting the sample and creating plasma, into which a trace amount of the sample has been ablated. As the plasma decays, excited elements in the plasma emit light at wavelengths that are distinct to each element. This emission is collected by a probe and sent to a high-resolution, multispectrometer system for analysis. Each scan provides full spectral analysis from 200-980 nm -- the region in which all elements emit energy – with optical resolution of 0.1 nm (FWHM) and sensitivity to parts-per-billion levels.
Ocean Optics LIBS systems come with intuitive operating software that includes a library of all elemental emission lines and that enables automatic identification of all elements present in the sample. Other software features allow tracking emission intensities over multiple scans and correlation of analysis routines. Also available are hardware options for rastering and video imaging.
The LIBS system is typically installed into a 19-inch rack mount, and includes a seven-channel spectrometer system and all necessary cables for connection to a PC via a single USB port. Sample excitation is possible using any Q-switched pulsed laser with energy greater than 30 mJ.
Complete systems, including the laser and sample chamber, can be figured for about $50,000. Laboratory and portable LIBS systems are available. Also available are alternate sample configurations for element-specific analyses.
For more information, visit: www.oceanoptics.com; e-mail: firstname.lastname@example.org
Ocean Optics Inc.
830 Douglas Avenue
Dunedin, FL 34698