Atomic absorption spectrophotometer (flame graphite furnace integrated)

Atomic absorption spectrophotometer (flame graphite furnace integrated) 4520G type

• Introduction

4520GThe Type A atomic absorption spectrophotometer uses deuterium lamp clip background technology to provide reliable assurance for element quantitative analysis. Adopting a single interface multifunctional window design reduces the difficulty of analysts' work. The graphite furnace adopts *GFTVVisual system, realizing automatic sampler system instrument addition and hydrogenation system.

• application field

Widely used in industries such as geology, metallurgy, medicine, chemical engineering, petroleum, agriculture, animal husbandry, cement, printed circuit boards, environmental protection, and commercial inspection.

• matching products

Hollow cathode lamp, graphite furnace atomization system, flame atomization system, microwave digestion instrument, ultrapure water machine.

◆ Four lamp positions, six lamp positions, and eight lamp positions are optional (high-performance element lamps are optional), with automatic 3D switching, energy balance, and multiple lamp positions preheating simultaneously to save waiting time. It has deuterium lamp buckle background and self-priming buckle background functions;

◆ *The integrated design of flame atomizer and graphite furnace atomizer achieves dual modes of automatic and manual switching;

◆ Automatic optimization of memory function for instrument settings, one click completion of scanning peak searching, and energy balance;

◆ Data reports can be saved in multiple formats and printed out for easy data retrieval and comparison;

◆ The instrument software adopts a single interface multifunctional window design, making operation simpler, real-time monitoring of data changes, and supporting mainstreamWindowsOperating system, supports remote control and calibration/The English version is optional and has comprehensive quality control（QC）Function;

◆ *A reliable multiple safety protection system that automatically detects, alarms, and detects abnormal situations such as insufficient pressure, air leakage, and engine shutdown;

◆ *The graphite furnaceGFTVVisual system,CCDReal time monitoring of graphite furnace atomizers by cameras to extend the service life of graphite tubes;

◆ The automatic sampler system can achieve automatic configuration of standard curves, automatic dilution, and high-precision injection;

◆ Scalable: Hydrogen system and combined functionality.

◆ Equipped with automatic online detection function.

Atomic absorption spectrophotometer (flame graphite furnace integrated) 4520G technical specifications

wavelength range ：185nm-900nm

Monochromator:Czerny-TurnerEnhanced type

Grating line density:1800item/mm

Spectral bandwidth:0nmThe0.1nmThe0.2nmThe0.4nmThe1.0nmThe2.0nmMulti level automatic switching

Wavelength accuracy: ≤±0.1nm

Wavelength repeatability: ≤±0.025nm

Baseline drift:0.003ABS/30min(Static)0.005ABS/15min(Dynamic)

Resolution: Copper lamp324.7nmWavelength,0.2nmBandwidth, half width0.2nm±±0.01nm

Detector: Hamamatsu photomultiplier tube from Japan

Element light rack: turret type fully automatic switching light rack

Flame atomization system

Detection limit:（Cu）0.006Mg/mL

Burner:0.5mm×100mmAll titanium burner

Repeatability:RSD≤0.7%

Spray: metal sheathed high-efficiency glass spray

Atomization chamber: corrosion-resistant all plastic atomization chamber

Security measures: equipped with multiple automatic security protection functions

Position adjustment: Automatic setting of appropriate height and front and rear position of flame burner

Graphite Furnace Atomization System

detection limit(Cd)：1.5pgPrecision: ≤3%Heating temperature range: room temperature~3000℃

Heating and temperature control method Power control method for drying and ashing stage, and high-power light control method for atomization stage

Temperature control accuracy:1%Heating rate:2000℃/second

Heating condition setting: 11Step, slope heating, step heating, high-power heating, temperature monitoring and reverse measurement system

Security protection: Fault protection for air pressure system and cooling system, achieving power monitoring

Deuterium lamp background correction:1ABSTime ≥60times Self suction background correction:1ABSTime ≥60times

data processing

Measurement method: Air-Acetylene flame method, graphite furnace method

Data processing: Linear regression method automatically fits the working curve and calculates the results automatically

Repeated measurement times:1～99Repeat the measurement to calculate the average value, and automatically provide the standard deviation and relative standard deviation

Result output: Multi format data saving and printing output

Communication interface: standardRS232，USBextended interface

Automatic sampler system: optional85Automatic sampler. Automatic configuration of standard curve, automatic dilution, high-precision injection

Visualization system: optionalGFTVVisual system, graphite furnace video capture system

Function expansion: Hydrogen system