Axial Instrument
Inductively coupled plasma atomic emission spectrometer with axially viewed plasma, purgeable
air-path monochromator, free-running air-cooled, 40 MHz RF generator and cooled cone
interface with argon purged pre-optics.
Optical configuration
Czerny Turner monochromator with 750 mm focal length.
Grating
90 by 110 mm holographic grating with 1800 lines per mm.
Detection
P.C. selected dual photomultiplier tubes, consisting of: UV enhanced solar-blind detector with
Cs-Te photocathode or wide-range multi-alkali photocathode for the visible region.
Stray light reduction
Holographic grating, baffles, solar blind PMT and PC selected optical filters.
λ drive mechanism
Lead screw with sine bar and refractor plate.
λ calibration
Automatic zero order plus 10 wavelength calibration using built-in Hg lamp. User selectable
periodic 2 point Hg calibration re-slope.
Plasma viewing range
± 3 mm horizontal, ±4 mm vertical.
RF generator interface
A nickel Cooled Cone Interface, water cooled with argon counter purge.
Radial Instrument
Inductively coupled plasma atomic emission spectrometer with radially viewed plasma, either vacuum capable monochromator or purgeable air-path monochromator, dual PMT, air-cooled free-running 40 MHz RF generator and a programmable gas box.
Optical configuration
Czerny Turner monochromator with 750 mm focal length.
Grating
90 by 110 mm holographic grating with 1800 lines per mm.
Detection
P.C. selected dual photomultiplier tubes, consisting of: UV enhanced solar-blind detector with Cs-Te photocathode or wide-range multi-alkali photocathode for the visible region.
Stray light reduction
Holographic grating, baffles, solar blind PMT and PC selected optical filters.
λ drive mechanism
Lead screw with sine bar and refractor plate.
λ calibration
Automatic zero order plus 10 wavelength calibration using built-in Hg lamp. User selectableperiodic 2 point Hg calibration re-slope.
Plasma viewing range
± 3 mm horizontal range. 0 to 25 mm vertical range in 1 mm increments, under PC control.
RF Generator
Type 40 MHz air-cooled, free-running design with solid-state switched-mode power supply.
Coupling type
High efficiency Direct Serial Coupling (DISC) of the induction coil to the generator.
Power rating
2 kW
Power range
700 W to 1700 W in 10 W increments, under PC control.
Interlocks
Plasma compartment door, air-flow, coolant flow.
Induction coil
3 turn gold plated copper type directly coupled to RF generator and power control module.
Axial Sample Introduction
Nebulizers & spraychambers
High efficiency glass cyclonic action spray chamber with high flow concentric glass
nebulizer. Optional inert Sturman-Masters spray chamber with double pass cyclonic action.
Optional v-groove nebulizer.
Torches
Single piece type with extended outer tube designed for low gas flow at low power.
Optional demountable type with extended outer tube and choice of ceramic or quartz injectors.
Radial Sample introduction
Nebulizers & spraychambers
Inert Sturman-Masters double pass cyclonic action spray chamber with v-groove nebulizer. Optional high efficiency glass cyclonic action spray chamber with high flow concentric glass nebulizer.
Torches
Single piece type designed for low gas flow at low power. Optional demountable type.
Choice of ceramic or quartz injectors.
Software
User interface
Plasma 96 graphical user interface with Worksheet layout. Windows 95® system with pull down menus. Mouse or keyboard control.
Calibration types
Up to 10 point calibration method or two point method of additions with a choice of linear or polynomial regressions and the option to force the calibration regression through zero.
Background Correction
PPB – Polynomial Plotted Background correction characterizes the background around the wavelength of interest using a polynomial algorithm. OBC – Off-peak Background Correction uses either a single point linear extrapolation or two point linear interpolation.
P.C. control
Full PC control of auxilliary and plasma gas flows, power setting, wavelength selection, viewing height and horizontal viewing position, filter and grating order selection, PMT selection, peristaltic pump speed plus Smart Rinse and Fast Pump. Automatic mercury line wavelength calibration at power up. Programmable mercury line reslope.
LIMS support
Data can be directed to a serial port for real time transfer to a LIMS. Sample labels can be transferred between a LIMS and Plasma 96.
Data import/export
Results can be transferred directly into 3rd party packages using DDE. In addition, data can be exported during run or post-run in ASCII or PRN formats.
Minimum computer requirements
486 DX2/33 MHz with 8 Mb RAM, 340 Mb free on hard disk drive, 3.5" floppy drive, super VGA monitor and graphics card with 256 colors, 640 x 480 resolution, GPIB interface card, 101 keyboard and mouse, at least one AT-bus slot for an IEEE card, Microsoft Windows 95 ®.
Recommended computer
Pentium processor with 16 Mb RAM (or more), at least 340 Mb free or more on hard disk drive, 3.5” floppy drive, 15” super VGA monitor (or larger) and graphics card with 256 colors, 800 x 600 resolution (or better), GPIB interface card, 101 keyboard and mouse, at least one AT-bus slot for an IEEE card, Microsoft Windows 95. Recommended options: CD-ROM drive (20x or better) and 16 bit sound card (or better).
Accessories
Autosampler
SPS-5 Sample Preparation System random access autosampler. Magnetic rack recognition.
Choice of 5 rack types (500, 150, 50, 25, 10 mL) and overlays for different test tube sizes. Up to 10 standards plus 400 samples at one time, for 10 mL tubes. Inert polypropylene construction.
Diluter
Optional autodiluter for SPS-5, performs on-line overrange dilution. Up to 3 serial dilutions on-line. Precision 20 mL syringe design. All inert construction – teflon holding coil ensures no solution enters syringe. Optional software for off-line preparation of single or serial sample dilutions, multi-element standards, addition standards and reagent addition. Dilution volumes from 0.02-500 mL. Maximum dilution ratio (off-line) 1:25,000. Unique Smart-Mixing ensures homogeneity without splashing. Typical dilution error for a 1 in 20 dilution to 20 mL <1%.
Vapor Generation
VGA-77P Vapor Generation Accessory. Modular continuous flow vapor generator for the determination of Hg, As, Se, Sb, Te, Bi and Sn at µg/L concentrations. Typical precisions 1-2% RSD. Compatible with SPS-5 autosampler.
Nebulizers
U 5000 AT ultrasonic nebulizer. Inert polymeric v-groove with high dissolved solids capability.
Microconcentric nebulizer.
Organics Kit
Includes a cooled spray chamber, torch and tubing used in the analysis of volatile organic solvents e.g. gasoline.
AGM-1
Used to add oxygen to the auxiliary gas to eliminate carbon formation and reduce molecular band structures when analysing organic solvents.
AGM-2
An auxiliary gas module that provides a nitrogen purge for the monochromator and
pre-optics to extend the working wavelength range down to 175 nm. Suitable for axial or radial air-path instruments.
Cooling Requirements
Radial instrument
Requires water cooling system with the following specifications:
Cooling capacity 200 watts
Flow rate 0.5 L/min (0.1 gpm) minimum
Recommended inlet temperature 20 °C (68 °F)
Minimum inlet pressure 55 kPa (8.0 psi)
Maximum inlet pressure 400 kPa (60 psi)
Axial instrument Requires water cooling system with the following specifications:
Cooling capacity 1 kW
Flow rate 0.5 L/min (0.1 gpm) minimum
Recommended inlet temperature 20 °C (68 °F)
Minimum inlet pressure 55 kPa (8.0 psi)
Maximum inlet pressure 400 kPa (60 psi)
Recommended environmental conditions
Instrument storage
0-2133 metres altitude, 5-45 °C, 20-80% relative humidity, non-condensing.
Instrument operating,
0-853 metres altitude, 10-35 °C, 8-80% relative humidity, non-condensing.
meeting specifications
853-2133 metres altitude, 10-25 °C, 8-80% relative humidity, non-condensing.
Product complies with environmental standards of BSEN61010-1 1993.
Instrument dimensions
Width Depth Length Weight
Unpacked 1380 mm 710 mm 1055 mm 226 kg
54.5" 28" 42" 500 lb
Packed 1660 mm 960mm 1420 mm 325 kg
65.5" 37.8" 56" 716.5 lb
Gas and electrical requirements
Gas requirements
Argon supply – Liquid argon recommended.
Permissible pressure range 410-690 kPa
(60 to 100 psi), recommended pressure 550 kPa (80 psi) regulated. Required flow rates 10.5 - 32.25 L/min.
Gas requirements for the VGA-77P
Argon or nitrogen gas (dry 99.99% argon preferred) at pressure of 300-400 kPA (43-57 psi).
Maximum consumption 0.1 L/min.
Electrical requirements
Spectrometer
208, 220 or 240 VAC, ±10%
(Low power) 230 VAC -6/+14%
Frequency 50 to 60 Hz ±1 Hz
(High power) 187 to 264 VAC, ±10% Frequency 50 to 60 Hz ±1 Hz
Water cooler
220-240 VAC, 50 Hz
115-230 VAC, 60 Hz
Voltage ±10%, Frequency ±1 Hz
(Typical)
SPS 5 Autosampler
100, 120, 220, 240 VAC, ±10 % 80 VA
230 VAC -6/+14%
Frequency 49 to 61 Hz
VGA-77P 100, 120, 220, 240 VAC, ±10 % 24 VA
230 VAC -6/+14%
Frequency 50 to 60 ±1 Hz
Personal computer
115,120, 220,240 VAC, 50/60 Hz 300 VA
(Typical)
Laser printer
115,120,220,240 VAC, 50/60 Hz 85 VA
(Typical)
Fume Extraction
Spectrometer must be located under an extraction system which provides a minimum flow of 6 cubic metres per minute (200 cfm) at 16 mm water gauge static pressure. The exhaust must be ducted to an external vent.
