An inductively coupled plasma spectrometer is a tool for trace detection of metals in solution, in which a liquid sample is injected into argon gas plasma contained by a strong magnetic field. The elements in the sample become excited and the electrons emit energy at a characteristic wavelength as they return to ground state. The emitted light is then measured by optical spectrometry. This method, known as inductively coupled plasma atomic emission spectrometry (ICP-AES) or inductively coupled optical emission spectrometry (ICP-OES), is a very sensitive technique for identification and quantification of elements in a sample.
ICP Spectrometers can be used for the analysis of environmental samples, contaminants in food or water, metalloproteins in biological samples, and similar studies. Most ICP-AES instruments are designed to detect a single wavelength at a time (monochromator). Since an element can emit at multiple wavelengths, it is sometimes desirable to detect more than one wavelength at a time. This can be done by sequential scanning or by using a spectrometer that is designed to capture emissions of several wavelengths simultaneously (polychromator). Detection limits typically range from parts per million (ppm) to parts per billion (ppb), although depending on the element and instrument, can sometimes achieve less than ppb detection.
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Other Inductively Coupled Plasma Spectrometer (ICP AES / ICP OES) Products
Agilent Technologies
- 178 nm–780 nm
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Analytik Jena
- 160 - 900 nm
- 0.002 nm at 200 nm
- high-resolution CCD
Analytik Jena
- 160 - 900 nm
- 0.006 nm at 200 nm
- high-resolution CCD
GBC Scientific Equipment
- 160-800 nm (1800 g/mm grating); 160-640 nm (optional 2400 g/mm grating)
- 0.006 nm (4th order, 1800 g/mm); 0.004 nm (3rd order, optional 2400 g/mm)
- Dual PMT: R7154 solar blind UV tube and R928 wide-band visible tube
GBC Scientific Equipment
- 160-800 nm (1800 g/mm grating); 160-640 nm (optional 2400 g/mm grating)
- 0.006 nm (4th order, 1800 g/mm); 0.004 nm (3rd order, optional 2400 g/mm)
- Dual PMT: R7154 solar blind UV tube and R928 wide-band visible tube
PerkinElmer
- 165-900 nm
- <0.009 nm at 200 nm
- Dual backside-illuminated CCD (DBI-CCD), Peltier-cooled to -8°C, 176 x 128 pixels per segment
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PerkinElmer
- 167-900 nm
- 6 pm at 200 nm; 20 pm at 550 nm
- BSI-CMOS (backside-illuminated CMOS sensor), air-cooled, patented; full-frame pixel array
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PerkinElmer
- 163-782 nm (SCD polychromator); extended to ~900 nm with visible channel
- <0.006 nm at 200 nm
- SCD (Segmented-array Charge-Coupled Device), dual UV and visible channels
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Thermo Fisher Scientific
- 167 to 852 nm
- <7 pm at 200 nm
- High performance solid-state CID821
PG Instruments Limited
- 160-900 nm
- 0.006 nm @ 200 nm
- CCD 1024x1024 pixels, 24 µm x 24 µm pixel size, cooled to -40°C (triple-stage Peltier)
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