AA320N AAS Spectrophotometer

AA320N Atomic Absorption Spectrophotometer Build-in computer data processing and LCD display: stable and reliable with the functions of integral holding, peakheight and area, auto zero adjusting, deuterium lamp background correction.

Common Features 

● Build-in computer data processing and LCD display: stable and reliable with the functions of integral holding, peakheight and area, auto zero adjusting, deuterium lamp background correction, multi-linear and nonlinear curves fitting, various parameters and working curves displayed in screen and report printing, etc. It is equipped with interface for externally linking PC. 
● Stability: Double-beam system can automatically compensate the light source drift and wavelengthdrift caused by the variation of temperature (with the function of the eliminating the affection of wavelength drift on the base line stability) and electronic circuit drift so as to reach a good basic line stability. 
● Quickly: The cathode lamp needs not be pre-heated for long time and sample can be analyzed immediately. It is the preferable instrument chosen by users to conduct analysis of multiple kinds of elements and fast analysis of samples. 
● High precision of measurement: Gas path system is equipped with precision pressure stabilizing and current stabilizing devices to reach stable flame and low noise. Specially designed fine light beam passes through the flame to ensure a high precision analytical test and low characteristic concentration. 
● High energy optical path: A total reflection system is adopted to eliminate color difference in full range. By means of chemical conversion, a round light spot of the light source becomes a long light spot, which enters into the slit. Therefore the light flux of double beam is enhanced. 
● Long-life and anti-corrosive atomization system: The burner is made of new type titanium alloys, anti-corrosive and fast thermal equilibrium. It meets the requirement of measurement sensitivity without water-cooling. 
● Multi-functional analysis mode: for methods of flame absorption, flame emission, graphite furnace atomic absorption and hydride generation. 
● Safe and reliable gas path system: Special devices of quick gas conversion and safety protection can be used to analyze air-acetylene flame. 
● Complete set of accessories: to be supplied with the instrument and ready for use after they are purchased.

Specifications

● WL range:190-900nm 
● WL accuracy: ≤±0.5nm
● WL repeatability: ≤0.3nm (single direction)
● Spectrum bandwidth: 0.2nm, 0.4nm, 0.7nm, 1.4nm, 2.4nm, 5.0nm
● Resolution : <40%
● Base line stability: ±0.004Abs/30min
● Characteristic concentration of copper: ≤ 0.04μg/ml/1%
● Detection limit of copper: ≤ 0.08μg/ml
● Background calibration ability: Greater than 30 times
● RS232: including
● Printer: Optional
● Power supply: 220V 3A, 50Hz
● G.W.: 138Kg / 56Kg 
● Package size: 1250mmx795mmx765mm (Main instrument)   545mmx445mmx1385mm ( Accessories ) 

Standard Accessories 

● Oil-free air compressor 
● Glass Atomizer 
● Cu Hollow cathode lamp 
● Atomizer unit 
● Burner unit 
● Dust cover 
● Water-separating gas filter 
● Titanium burner---10cm 

Optional Accessories 

● GA3202 HGA graphite furnace system 
● Hydride generator 
● Hollow cathode lamp 
● Graphite tubes 
● Software 
● Recirculating cooling water system 

Specifications for Optional Accessories

GA3202 HGA graphite furnace system 

GA3202 graphite furnace system is a system specially used for the quantitative analysis of trace elements in substances by graphite furnace atomic absorption method. It is an important optional accessory for AA320N atomic absorption spectrophotometer.

Main Features

● Heating steps: 9 steps

● Temperature range (nominal Temperature):  20℃~3000℃
● Slope heating time: 0~999s
● Heating holding time: 1s~999s (the sum of both time should be less than 999 seconds)
● Inert gas needed: argon, pressure of entry larger than 0.3Mpa
● Cooling water: tap water or cycling water, flow rate no less than 2L/min
● Output: LCD
● Gas pressure alarm, furnace overheated alarm
● Interface with Atomic absorption spectrophotometer, autosampler and RS232
● High-power temperature heating function (1000℃~2700℃)
● Test sample together with atom absorption equipment. Cd ≤1×10-12g;Cu ≤1×10-10g

Working Conditions: 

 ● Power source: 220V±22V, 50Hz±1Hz, 3A 220V±22V, 50Hz±1Hz, 30A
●  Power: 5.1kW for 220V on about 2700℃
●  Ambient temperature: +10℃~+30℃
●  Relative humidity: less than 85% 
●  Instrument rating power: 7.2kW

AAH-1 Hydride generator

The AAH-1 hydride generator is used in conjunction with an atomic absorption spectrophotometer to determine trace amounts of arsenic, selenium, antimony, lead, tin, tellurium, germanium and cold atomic absorption in the sample using the hydride atomic absorption method. Determine the element mercury.

Product parameters:

Measurement method: continuous flow injection

Reducing agent: NaBH4

Sample liquid feeding rate: 0~7mL/min

Reagent feeding rate: 0~2.5mL/min

Combustion head: heating quartz tube (heated by acetylene combustion)

Carrier gas: Ar, gas supply pressure 0.32MPa

Power supply: 220V, 50Hz, 30W

Size: 290×220×208mm

AS800 cooling water circulation machine

AS800 cooling water circulation machine is an important optional accessory specially designed for matching 4510GF and GA3202 graphite furnace systems.

The overall design of the horizontal chassis has beautiful appearance and compact structure. The PVC material sealed water tank prevents the introduction of pollutants, fully considers the heat dissipation problem of the small chassis, ensures the smoothness of the condenser air duct, improves the ventilation and heat dissipation performance of the whole machine, and ideally utilizes the refrigeration system. performance, improve refrigeration efficiency, save energy, and can hang external filters to meet the various needs of customers.

Technical indicators:

● Nominal cooling capacity: 800W

●Temperature control range: 5 ~ 35(℃)

●Temperature control accuracy: ±0.1(℃)

● Water pump head (MAX/rated): 10 / 8 (m)

●Flow (MAX/rated): 15 / 6 (L/min)

●Water tank volume: 15L

●Power supply: AC220V/50Hz

● Instrument size: 330mm×500mm×500 mm