Atomic Absorption Spectrophotometer

1. Optics-True double beam optics with aberration-corrected Czemy-Turner monochromator mounting Electronically double-beam, single-beam. of Stockdale optics will not be accepted.
2. High resolution grating with 1800 lines/mm and 300 mm or more focal length for high energy throughput Wavelength Range Complete measuring wavelength range from 190 nm to 900 nm
3. Bandwidth selection: 6-step or more bandwidth selection with automatic switching from 0.1 to 2 nm (0.1,0.2.0.4,0.7,1.0,2.0 nm)
4. Detector- High sensitivity Photo-Multiplier Tube (PMT) detector for the completu wavelength range or Solid state Detector
5. Motorized turret lamps or more turrets, controlled through software with 2 lamps simultaneously lit, one for measurement and the other for warm-up for the next measurement In built-in power supply for a minimum 2 numbers of High-performance boosted lamps/ Super lamp/EDI, must be there in the system
6. Dual background correction High-speed dual frequency simultaneous measurement. D2 background correction, and high-speed Self-Reversal background correction option.
7. System must be supplied with a 100 mm Air-C:H: solid Titanium bumer as standard for automatic ignition and extinction of flame
8. High efficiency nebulizer with chamber made of engineering plastic, Platinum-Irodium orifice, and Ceramic impact bead resistant to strong acids, including HF. Fully computerized gas flow control system with automatic setting of optimum fuel and oxidant flow rates
9. System must provide Performance Guarantee: Greater than 0.7 abs for 5 mg L. copper solution with an RSD of less than 0.5%.
10. All the safety functions must be provided as standard including Leak Check, Flame Monitor, Gas Pressure Monitor, Interlock for wrong burner head use. Auto switch-over between Air-CH/NO-CH: flame with flow rate monitoring using optical sensor Drain Tank Level Monitor, Automatic flame extinction during power sudden power interruption, Vibration sensor for auto flame extinction: Internal fan stop sensor and flame-retardant body.
11. Automatic Gas Flow Control: The system must have automatic searching for optional fuel gas flow rate, which optimizes the gas flow rate by measuring the changes in absorbance between a blank and a standard sample. The difference between the two must be displayed on the screen. The gas flow rate achieving the highest sensitivity must be detected, and this value must automatically be set as the gas flow rate value
12. Software operation on Windows 10 Professional for complete instrument control, data acquisition and processing Software includes strengthened QA QC functions, Hardware Validation functions and a Comprehensive data management system a standard
13. Hydride vapour generator: the party must offer a continuous flow Hydride vapout generator along with the main system. Used with the AAS, the Hydride vapour generator permits the rapid and accurate quantitation of elements such av As, Sc. Nh Sn, Te, Bi, and Hg at several-ppb levels.
14. Measurement method: continuous flow
15. Sample consumption: 0 to 7 ml/min, variable
16. Reagent consumption: 0 to 2.5 ml/min, variable
17. Atomizer: Heated absorption cell (heated by Air-C2H2 flame in standard system) Carrier gas: Ar, pressure: 0.32 MPa, consumption: 70 ml./min Power requirements: 240 VAC, 50/60 Hz
18. Absorption cell, Reagent bottles, gas hose, drain tube, etc., must be supplied with the Hydride generator as standard
19. Single Hollow Cathode Lamps for elements for Zine, Copper, Iron, Nickel, Cobalt. Manganese, Lithium, Silver, Sodium, Calcium, Arsenic, Chromium, Antimony, Cadmium, and Mercury must be supplied along with the system
20. Pre-installation requisites (PIR) are to be supplied by the vendor.
21. Utilities required for AAS operation like Exhaust hood assembly, Double stage SS Acetylene Regulator, one-time filled Acetylene Gas Cylinder 47 L. (2 nos). Double stage SS Argon Regulator, one-time filled Argon Gas Cylinder 47 L (2 nos), Gas control box for Acetylene, Argon, and Compressed Air, and Oil-free air compressor Water Re-circulating Chiller of compatible capacity suitable for the supplied A.A.S. Unit.
22. There must be a future upgradation provision with a single Auto sampler for Flame. Furnace, and Hydride Vapour Generator, with an auto sampler having an auto dilution facility for furnace operation. Instrument must have a provision for Graphite furnace field upgradation at a later stage The flame-to-furnace changeover must be automatic (computer-controlled), no manual intervention is required. Standards for each element quoted are 250 ml (1000 ppm) separately
23. Installation & training should be provided free of cost
24. Delivery must be within 8 weeks after placing of Purchase order
25. PC/Laptop - Branded i5 PC with Windows 10/11 Professional with Laser Jet printer
26. Online UPS - 5 KVA Online UPS (single Phase) with 01 hr backup must be provided