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Instrument Database:
Jarrell-Ash - Plasma AtomComp
( Thermo Scientific )
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| Year of introduction |
1978 |
| Status |
historical ( out of service ) |
| Company |
Jarrell-Ash
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| Categories |
Spectrometer ( Atom. ): AES: ICP-AES
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The Plasma AtomComp Direct-Reading Spectrometer System is a computer-controlled, modular spectrometer system with an inductively-coupled argon plasma (ICAP) source. Speeds up and simplifies the simultaneous determination of widely varying concentrations of up to 48 elements in a single sampie, either in aqueous or organic solution. Produces printed results for a 40-element determination in just 1 minute.
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| Specifications |
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Dimensions (w x d x h in cm)
| 161 x 86 x 129.5 (spectrometer) 60 x 66 x 162.5 (generator)
| Weight
| 907 (spectrometer), 364 (generator)
| Power
| three phase, 208/220 V, 3900 VA (generator) single phase, 208/220 V, 1000 VA (spectrometer)
| Spectrometer
| 0.75-m Rowland circle | | Grating | 2400 lines/mm, aluminized replica from interferometrically ruled master fused quartz, 30 x 40 mm, blazed at 270 nm
| Optics
| | | Wavelength range | 190-500
| Wavelength drive
| refractor plate
| | Resolution | 36 pm in 1st order
| | Detector | PMTs, side window, up to 49 analytical channels,
| Detection mode
| | | Read out | Computer-controlled, individual integrators with multiplexed 12-bit A/D convertor,
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| | ICP generator
| crystall-controlled,
| | Frequency (MHz) | 27.12
| Power (Watt)
| 2000 controlled to +-5% from 700 to 2000 watts
| Load coil
| | Torch
| single piece quartz torch
| Argon flow (L/min)
| 0-25
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| | | Sample introduction | | Operating system and software
| | Computer
| ASR33 Teletype; PDP 11 (optional)
| Short term precision (RSD for 10 replicates)
| | Long term precision (RSD for 4 hours)
| | Sensitivity
| | | Detection limits (3s, µg/L) | | Accessories
| | Special features
| Different excitation sources: High-voltage AC spark, DC arc,
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