Product Review: ICP-AES remains competitive - ACS Publications

Jun 2, 2011 - Product Review: ICP-AES remains competitive. Is ICP responsible for the declining market for flame AA instruments? Britt Erickson. Anal...
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ICP-AES remains competitive isICPresponsible for the declining market forflameAA instruments?

For routine "wet" elemental analyses, the method of choice has traditionally been eitherflameatomic absorption (AA) or inductively coupled plasma atomic emission spectrometry (ICP-AES). When lower detection limits are required, graphite furnace AA or ICPMS are commonly used instead. The AA market is clearly declining, manufacturers told Analytical Chemistry. Does this trend imply a booss tor rhe ICP market? Where else would elemental analyses go? State of the ICP market

According to the manufacturers, more people are currently using ICP-AES than ICPMS. The edge that ICP-AES has over the ICPMS market, however, is probably not here to stay. Estimates show that the

ICPMS market is growing at a substantially greater rate than ICP-AES. Howard Taylor of the U.S. Geological Survey has taught several short courses on ICP-AES and ICPMS. He believes that competition between the two techniques will increase as the price of ICPMS continues to fall. Complete ICP-AES systems start around $50,000, whereas an ICPMS system is tiiree or four times that amount. Taylor expects to see the prices of ICPMS systems continue to decrease over the next few years. Price, however, is not the only issue involved in the competition between ICP-AES and ICPMS. Many industry standards are based on ICP-AES, said one manufacturer. "ICPMS is a relatively new technique. Even though it probably has greater potential [than ICP-

Analytical Chemistry News & Features, March 1, 1998 211 A

Product Review

Table 1 . Summary of selected ICP-AES instruments* Model

Integra X L

JY Ultima

Direct-Reading Echelle

Optima 3 0 0 0 series

Manufacturer

GBC Scientific Equipment 3930 Ventura Dr., Suite 350 Arlington Heights, IL 60004 800-445-1902

JY Emission Horiba Group 3880 Park Ave. Edison, NJ 08820 800-533-5946

Leeman Labs 6 VVentworth Dr. Hudson, NH 03051 603-886-8400

Perkin-Elmer 761 Main Ave. Norwalk, CT 06859 800-762-4000

URL

www.gbcsci.com

www.isainc.com

www.leemanlabs.com

www.perkin-elmer.com

Type

Sequential

Sequential

Sequential, simultaneous, or combination

Segmented-array CCD simultaneous

Dimensions W x D x H (cm)

124x116x160

1 8 0 x 7 4 x 61 (Benchtop)

133x53x66

1 3 5 x 7 6 x 155

Weight (kg)

500

275

104

454

Nebulizer (standard)

Concentric

Concentric

Hildebrand grid

Corrosion-resistant cross flow and GemCone (both with axial and dual view)

Grating

Ruled (standard); holographic Original holographic, ion(optional) etched

Echelle

Echelle

Plasma view

Radial

Radial

Axial, radial, or dual view

Axial, radial, or dual view

RF generator

Free running; 40.68 MHz; up to 1.5 kW

Solid state; 40.68 MHz; up to 2.6 kW

Free runnning; 40.68 MHz; up to 2 kW

Free running; 40.68 MHz; up to 1.5 kW

Wavelength range

160-800 nm

120-800 nm

177-800 nm

165-782 nm

Detector

Dual PMTs

Dual PMTs

Dual PMTs (sequential); up to 45 PMTs (simultaneous)

Segmented-array CCD; dual detectors (Model 3300)

Options

Second monochromator; autosampler; hydride generator; mass-flow control on plasma and auxiliary gas; ultrasonic and other specialty nebulizers

Autosampler; ultrasonic and other specialty nebulizers; hydride generator; transient signal; and flow injection

Autosampler; ultrasonic and other specialty nebulizers

Autosampler; hydride generator; flow-injection capabilities; ultrasonic and other specialty nebulizers; laser capabilities

Special features

High-efficiency/air-cooled rf; mass-flow gas regulation; argon humidification; highresolution/on-peak quantitation; trace spray chamber; complete methods auto-optimization

Resolution of