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مشخصه
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توضیحات
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سیستم مشاهده پلاسمای اسپکتروفتومتر ICP-OES دست دو
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With the patented dual-view capabilities of the Optima 4000 DV series (U.S. Patent No.5,483,337), viewing of the plasma is accomplished by computer control of a mirror located in the optical path and allows selection of axial or radial view and adjustment of the plasma viewing in both the vertical and horizontal planes. The viewing position can be optimized by the software.
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سیستم کالیبراسیون مجدد جیوه و شاتر اسپکتروفتومتر ICP-OES استوک
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The computer-controlled, pneumatically operated shutter automatically opens and closes for each sample. By closing the shutter between each sample, the first transfer mirror is protected from long exposures to the intense UV radiation of the plasma, thus extending the useful lifetime of the mirror. A mercury lamp is built into the shutter mechanism and can be viewed when the shutter is closed to monitor the mercury emission line at 253 nm and automatically update the system wavelength calibration. Frequency of the automatic recalibration is user-selectable between 0 and 1000 minutes and can be varied during an autosampler analysis.
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آشکارساز اسپکتروفتومتر ICP-OES ریفربیش
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The patented PerkinElmer Segmented-array Charge-coupled Device (SCD) detectors (U.S.Patent No. 4,820,048)) consist of 235 addressable subarrays, with over 6000 pixels on a 13 by 19 mm silicon substrate. Typical readout noise is about 13 electrons RMS; dark current is less than 100 electrons/pixel/second; and readout speed is 50 µsec/pixel. Correlated double sampling data acquisition electronics further reduce electronic noise.
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ژنراتور RF اسپکترومتر ICP-OES کارکرده
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The Optima 4000 DV ICP-OES systems feature a 40-MHz, free-running solid state (no power amplifier tube needed) RF generator, adjustable from 750 to 1500 watts, in 1-watt increments.
The power efficiency is greater than 77% with <0.1% variation in output power stability. The solid-state components significantly increase reliability, and can result in higher signal/power readings than conventional tube generators. The compact RF supply meets all FCC certification requirements for RF emission (Part 18 of FCC rules and Regulations). Also complies with EC and VDE 0871 Class B requirements.
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کنترل توان و احتراق اسپکترومتر ICP-OES دست دوم
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Plasma ignition is computer-controlled and totally automated. A unique software feature allows the plasma to be ignited automatically at a user-determined time, warming the system up prior to an analysis, and can be turned off automatically after an analysis. True Power Control maintains the plasma power at the set point, even when changing sample matrices.
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ایمنی Interlocksاسپکترومتر ICP-OES دست دو
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For user safety and system protection, the system constantly monitors water flow, shear gas pressure, argon pressures, sample compartment door closure and plasma stability, and displays the interlock status on the computer screen as graphic symbols. If an interlock is interrupted, the plasma will automatically shut down safely.
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آب خنک کننده اسپکترومتر ICP-OES استوک
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A water recirculating cooling system is required, with approximately 4 L/min flow capacity at 310 to 550 kPa and a temperature between 15 °C and 25 °C. A Neslab CFT 75D or equivalent is recommended.
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جریان گاز آرگون اسپکترومتر ICP-OES ریفربیش
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Computer-controlled solenoid valves are used to regulate the flow automatically within the range of 0-20 L/min in 1-L/min increments for plasma argon and 0 to 2.0 L/min in 0.1-L/min increments for auxiliary argon. A mass flow controller is supplied with all systems for the nebulizer argon flow and is variable between 0 and 2.0 L/min in 0.01-L/min increments.
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گاز برشی اسپکتروسکوپی ICP-OES کارکرده
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A compressed air shear gas (18-25 L/min) is used to remove the plasma tail from the optical path, minimizing interferences and extending the dynamic range. The shear gas design offers a maintenance-free and lower-cost (no use of Argon) approach to removing the cooler plasma
zone.
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مشعل اسپکتروسکوپی ICP-OES دست دوم
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A unique demountable torch design using one-piece quartz tubing for plasma and auxiliary gas
flow is supplied. The standard torch includes a 2.0-mm i.d. alumina injector for full corrosion resistance to all acids, including hydrofluoric and aqua regia. A variety of other injectors are available.
The 1.2 mm alumina injector is recommended and supplied for the Caterpillar S·O·SSM program.
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محل قرارگیری مشعل اسپکتروسکوپی ICP-OES دست دو
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The Optima 4000 DV ICP-OES systems feature a unique externally mounted spray chamber.
The mount can be adjusted (with the plasma on) for maximum performance in different matrices.
Unlike other external spray chambers, which can drift with room temperature, the Optima 4000 torch mount is enclosed in a thermally controlled area outside of the torch compartment.
No tools are required for torch or sample introduction removal.
Spray Chamber Scott-type designed to minimize pulsations from the peristaltic pump and constructed of Ryton® for complete corrosion resistance to most acids, including HF, and all organic solvents normally used in ICP analyses. The Optima 4000 can also be ordered with a glass cyclonic spray chamber. The glass cyclonic spray chamber is recommended and supplied for the Caterpillar S·O·SSM program.
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نبولایزر اسپکتروسکوپی ICP-OES استوک
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The Optima 4000 DV series of ICP-OES systems can be ordered with either a Cross-flow or a concentric nebulizer. The Cross-flow design with chemically resistant GemTips™ is manufactured from corrosion-resistant materials (sapphire/ruby tips in a PEEK body). The system can routinely handle 50% (v/v) solutions of HCl, HNO3, H2SO4, H3PO4, 20% (v/v) HF and 30% (w/v) NaOH. The system is fully compatible with other sample introduction systems such as ultrasonic nebulizers, and solid sampling devices. An optional Low Flow Gem Cone Nebulizer is
recommended and supplied for the Caterpillar S·O·SSM program.
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پمپ پریستالتیک اسپکتروسکوپی ICP-OES ریفربیش
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A three-channel, computer-controlled pump with speed variable from 0.2 to 5 mL/minute in 0.1-mL/min increments using 0.76 mm (0.030”) i.d. tubing. Software features, including Fast Pump and Smart Rinse, dramatically improve the sample rinse out and analysis time.
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ابعاد طیف سنج ICP-OES کارکرده
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150 x 76 x 89 cm (W x H x D)
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وزن طیف سنج ICP-OES دست دوم
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425 kg
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