AAS-320N Double Beam Atomic Absorption Spectrophotometer

Product Specification

AAS-320N Atomic Absorption Spectrophotometer 

Main features:

 High-energy optical path: Adopt a double-beam total reflection optical system, full-band achromatic, and optically transform the circular spot of the light source into a long spot that enters the slit, thus increasing the luminous flux of the double-beam.

 Reliable baseline stability: The optimized design of the dual-beam system can compensate for light source drift, wavelength drift caused by temperature changes {with the function of eliminating the impact of wavelength drift on baseline stability} and electronic circuit drift. Therefore, it has reliable baseline stability, and the hollow cathode lamp can analyze samples immediately without long warm-up. It is a user instrument for analyzing multiple elements and quickly analyzing samples.

 High precision of measurement: Since the gas circuit system is equipped with precise voltage stabilizing and flow stabilizing devices, the flame is stable, the noise is low, and the uniquely designed fine light speed passes through the flame, ensuring high analytical testing precision and low characteristic concentration.

 Built-in computer data processing and LCD display: It adopts highly integrated micro computerized digital circuit, which is stable and reliable. It has functions such as integral hold, peak height, peak area, automatic zero adjustment, deuterium lamp background, various linear and nonlinear curve fittings, screen display of various parameters and working curves, printing reports, etc. It also has an external personal computer interface.

 Long-life corrosion-resistant atomization system: The combustion head is made of corrosion-resistant, fast-balancing new iron alloy steel material, which can achieve stable measurement sensitivity without water cooling.

 The signal modes include absorbance, concentration, emission, and emission concentration; the standard curve includes linear regression, curve fitting, and multi-point standard calibration; the relevant data of average value, standard deviation, and relative standard deviation can be calculated, and the standard average value can be displayed and printed , standard deviation, relative standard deviation related data, can display and print standard curve, atomic absorption peak diagram, i-line profile diagram and data, instrument parameter table and analysis report, etc.

 Multifunctional analysis methods: Flame absorption, flame emission, graphite furnace atomic absorption and hydride generation methods can be used.

 Safe and reliable air circuit system: equipped with safety protection devices.

 Complete accessories: It comes with complete accessories and can be used immediately after purchase.

 Optional data collection software.

 AAS-320N CRT Based on AAS-320N, it is equipped with a computer, printer and data processing software. The software has six major functions: element and working mode selection window, condition setting window, sample testing window, file management window, data browsing window and analysis condition library maintenance window.

Technical indicators:

 Optical system: double beam total reflection, C-T monochromator

 Grating: 1800 lines/mm

 Blazing wavelength: 250nm

 Wavelength range: 190nm - 900nm

 Wavelength indication error: ±0.5nm

 Wavelength repeatability: ≤±0.3nm (unidirectional)

 Spectral bandwidth: 0.2nm, 0.4nm, 0.7nm, 1.4nm, 2.4nm, 5.0nm

 Wavelength scanning speed 1.2nm/min; 300nm/min

 Resolution: <40%

 Baseline stability: ±0.005 A/30min

 Characteristic concentration: ≤ 0.04μ g/ml/1% (Cu element)

 Detection limit: ≤ 0.007μ g/ml (Cu element)

 Background correction capability: greater than 30 times

 Burner: 100mm single-slit titanium alloy

 Sprayer: high-efficiency glass atomizer

 Spray chamber: explosion-proof pre-mixed

 Communication port: RS232 and USB

 Power supply: 220V±22V, 50Hz±1Hz, 200W

 Host size: 1000mm×530mm×425mm

 Net weight: 130kg

Optional:

 Graphite furnace system

 Hydride generator

 Hollow cathode lamp

 Graphite tube

Graphite furnace system

Graphite furnace system is a system specially used for quantitative analysis of trace elements in substances using graphite furnace atomic absorption method. It is an important optional accessory of AAS-320N atomic absorption spectrophotometer.

Main feature:

 Equipped with photoelectric rapid temperature rise and temperature control function, it can be connected to an external data station and display temperature and absorption curves.

 LCD back optical character graphic display. Menu-style operation can memorize the heating program parameters and curves set each time for recall next time.

 A single wiring pipe is connected to the double atomizer conversion device through the furnace body, which greatly facilitates the installation and debugging of the graphite furnace, and can quickly switch between the flame method and the graphite furnace method.

 The system adopts a pneumatic closed structure to ensure constant pressure and reliable contact, and is equipped with overheating, overcurrent, overpower protection and argon pressure monitoring.

Technical indicators:

 Temperature range: 20℃~3000℃

 Light control temperature range: 1500℃~3000℃

 Heating rate: 3000℃/S

 Characteristic quantities of graphite furnace: Cu≤ 1×10 -10g Cd≤ 1×10 -12 g

 Measurement repeatability: Cd≤ 4%

 Detection limit: Cd≤ 1.0×10 -12g

 Power supply voltage: AC220V±22V 50Hz±1Hz

 Rated power: 6000W

 The analytical precision is better than the national standard