Visible, ultraviolet and infrared spectrometers

Philips Electronics

Cecil Instruments

Kontron Instruments

Perkin Elmer Corp.

Gilson International

Varian Instruments

Foss Electronic

Fourier Transform Infrared Spectroscopy, Near Infrared Fourier and Transform Raman Spectroscopy

Mattson Instruments Ltd.

Perkin Elmer Corp.

Varian Instruments

Philips Electronic Instruments

Foss Electronic

JOEL Ltd.

Applied Photophysics

EDT Research

Chemiluminescence analysis

New Brunswick Scientific Amersham Biosciences

Inductively coupled plasma mass spectroscopy

VG Isotopes Ltd.

Perkin Elmer Corp.

Labtam Ltd.

Inductively coupled plasma optical emission spectrometers

Spectro Inc.

Philips Analytical

Philips Electronic

Zeeman atomic absorption spectrometry

Perkin Elmer Corp.

Varian Instruments

Flame and graphite furnace atomic absorption spectrometry

Thermoelectron Ltd.

Perkin Elmer Corp.

Varian Instruments

GBC Scientific Pty Ltd.

Shimadzu Corp.

PS Analytical Ltd.

Total elements

Dohrman Instruments now Emerson Process Management

Halogen, sulfur, nitrogen

Sartec Ltd.

Sulfur

Mitsubishi Chemicals Industries

Sulfur, chlorine

EDT Analytical Ltd.

Nitrogen

Foss Tecator AB

Carbon, hydrogen, nitrogen

Perkin Elmer Corp.

Nitrogen, carbon and sulfur

Thermo Electron

Nitrogen

Thermo Electron

Mitsubishi Corp.

Buchi Labortechnik AG

Spectrofluorimetry

Shimadzu

Spectrovision Inc.

Polarography, voltammetry

Metrohm Ltd.

EDT Analytical

Chemtronics Ltd.

Luminescence and spectrofluorimetry

Perkin Elmer Corp.

Hamilton Co.

Hamilton Bonaduz AG

Headspace samplers

Perkin Elmer Corp.

Shimadzu Corp.

Siemens AG

Eden Scientific Ltd.

Hewlett Packard Inc.

NMR spectroscopy

Varian Instruments

Perkin Elmer Corp.

Oxford Systems

Energy dispersive and total reflection X-ray fluorescence spectroscopy

Link Analytical Ltd.

Oxford Systems

Philips Electronic Instruments

Richard Seifert & Co.

Traor Europa BV

Gas chromatography

Thermo Electron

Perkin Elmer Corp.

Shimadzu Corp.

Dyson Instruments

Hnu-Nordion Instruments Co.

Gas chromatography

Siemens AG