Automatic injection flame/graphite furnace atomic absorption spectrophotometer

4520AAutomatic injection flame/Graphite furnace atomic absorption spectrophotometer

• Introduction

4520AAll functions of atomic absorption spectrophotometer arePCControl operation, flexible selection of flame and graphite furnace. *The optical mechanical design, safe and convenient flame system, graphite furnace temperature control technology, optional background technology deduction, and various convenient functions provided by the workstation meet your pursuit of precision measurement automation.

Main configuration:

• application field

Widely used in the fields of materials science, life sciences, space technology, etc. for the analysis of metal elements in opaque substances, and can also be applied to the detection of trace heavy metal elements in food, medicine, and natural environments.

◆ Adopting excellent design from Agilent Technologies in the United States, the instrument has strong stability and long service life.

◆ Fully functional, with both flame atomization and graphite furnace atomization capabilities

The same host can achieve different methods such as flame, graphite furnace, etc; Graphite furnaces and flames do not require mechanical switching, which can avoid tedious tasks such as optical path recalibration caused by switching and improve analysis efficiency.

◆ Stable and reliable graphite furnace atomization system with more precise temperature control

adoptPIDTechnology enables more precise temperature control; At the same time, it has high-precision automatic sampling technology, which increases85Automatic sampler.

◆ Using highly sensitive flame sensors to eliminate interference from external light

◆ Graphite furnace visualization system

It can intuitively monitor the dynamic evolution of the sample solution during the drying, ashing, and burning processes inside the graphite tube, and conveniently observe the appropriate position and depth of the automatic sampler capillary injection needle entering the graphite tube, as well as the position of the platform inserted into the graphite tube, ensuring analysis accuracy and the lifespan of the graphite tube. It is also a training tool for *.

Installed in the instrumentCCDThe camera, in conjunction with video capture software, provides real-time monitoring of the interior of the graphite tube. The capillary injection needle and platform can display clearly, ensuring the appropriate location and parameter selection for the automatic sampler capillary injection of the test solution, facilitating the operation of analysts, and ensuring high reliability of analysis.

◆High analysis efficiency

A flexible online dilution system can greatly reduce analysis operations and improve detection efficiency.

◆*Reliable security protection system

*Protect the safety of operators; At the same time, safe and timely control measures should be implemented for abnormal situations, such as insufficient pressure, air leakage, engine shutdown, etc;

◆More comprehensive software features

Add working software for the hydride generator method; The software has added a method storage function, allowing users to retrieve standard curves at any time after storage, which can save analysis time.

◆Simplified exterior design for more convenient operation

Small size of similar instruments（700×550×440mm）Small laboratory space occupation; The simple lifting platform structure makes it easier for users to adjust.

◆ Equipped with automatic online detection function

Automatic injection flame/Technical parameters of graphite furnace atomic absorption spectrophotometer

wavelength range：190～900nm

6Lamp lighthouse：No need to replace the lamp during multi-element analysis

wavelength repeatability：±0.1nm Wavelength accuracy：Full band ±0.2nm

Absorbance range：0–2.5ABS

resolution：Spectral bandwidth0.2nmCan separate manganese double lines at different times(279.5and279.8)And valley peak energy ratio<20%

Spectral bandwidth（6档）：0.1nm，0.2nm，0.4nm，0.7nm，1.0nm，2.0nm

Static baseline drift：≤0.002ABS/30min(Cu)

weight：80kg size：500×450×430(mm) Grating number：1800item/mm

D2Background deduction method：background signal1ABSWhen deducting background ability ≥50times

power supply：220V AC

Flame system

Air acetylene flame combustion head：≤0.004ABS/30min(Cu)

Dynamic baseline drift of ignition：100mm

sensitivity(Cu)Characteristic concentration：≤0.025ug/ml/1%

relative standard deviation：≤0.5%(Cu,Absorbance>0.8ABS)

Detection limit:Cu≤0.004Mg/ml

safety system

Automatically cut off gas in case of insufficient pressure, power interruption, abnormal flameout, or mismatched combustion head

Graphite furnace system

Working temperature of graphite furnace：At room temperature~3000℃

High heating rate：≥2000℃/s

feature quantity：Cd≤1pg, Cu≤10pg

Relative standard deviation of precision：Cd≤3%, Cu≤3%

weight：60kg size：550×450×280(mm)

safety

overcurrent protection；Alarm for insufficient pressure of protective gas/Automatically stop heating up；Insufficient cooling water flow alarm/Automatically stop heating up；

power supply：220V AC power：7000w

autosampler

85Position, automatic configuration of standard curve, automatic dilution function, high-precision injection