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Instrument Database:
Applied Research Laboratories (ARL) - MAXIM - Simultaneous ICP-OES Spectrometer
( Thermo Scientific )
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| Year of introduction |
1993 |
| Status |
historical ( out of service ) |
| Company |
Applied Research Laboratories (ARL)
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| Categories |
Spectrometer ( Atom. ): AES: ICP-AES
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| Specifications |
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Dimensions (w x d x h in cm)
| 75 x 120 x 163
| Weight (kg)
| 240
| Power
| 230V, (+10%, -15%), 20 A single phase
| Spectrometer
| double echelle grating/prism spectrometer; 0.5 m Czerny-Turner mount; vibration isolated; Ar purged | | Grating | echelle, 98.349 g/mm, blazed at 67°
| Optics
| automatically selected filters (5 positions)
| | Wavelength range | 174-800 nm | Wavelength drive
| Controlled translation of the entrace prism for off-line background correction and interference survey scans
| | Resolution | 4 pm at 200 nm | | Detector | slit-mask with 196 exit slits; 28 PMTs; each photomultiplier tube observes 8 analytical wavelengths through high efficiency fiber optics. A computer-controlled shutter mechanism selects radiation from one of the 8 fibers coupled to each detector. PMTs are Peltier-cooled for reduced dark current | Detection mode
| on/off-peak correction; internal standardization; multiple calibration regression;
| | Read out | |
| | ICP generator
| solid state generator with automatic impedance matching; water cooled; computer controlled forward power | | Frequency (MHz) | 27.12
| Power (Watt)
| 1400
| Load coil
| | Torch
| axially viewed;single-piece; forced air cooling of torch and coil
| Argon flow (L/min)
| < 10
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| | | Sample introduction | concentric glass nebulizer (Meinhard type) in conical small volume glass spraychamber; compuer controlled peristaltic pump | Operating system and software
| Menu-driven PlasmaVision/MAXIM | Computer
| 386SX processor with 14" VGA monitor, printer
| Short term precision (RSD for 10 replicates)
| | Long term precision (RSD for 4 hours)
| | Sensitivity
| | | Detection limits (3s, µg/L) | | Accessories
| 76 position autosampler; Hydride generator; corrosion-resistant nebulizer; MDS nebulizer
| Special features
| carbon fiber spectrometer housing; integrated autosampler; comprehensive safety interlocks on access panels, cooling water, air flow, argon pressure and reflected power |
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