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Graphite Furnace

AA30 Series Graphite Furnace AAS

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The AAS is fully PC controlled with modern and compact design. They have flexible configuration and different accessories to meet variable requirements. Advance optical system can guarantee stable and reliable performance. Unique and intelligent gas control module can ensure the device safety. The AAS can test more than 70 elements including metallic and non-metallic elements, which can be used widely in petrochemistry, metallurgy, mining, geology, material analysis, food and pharmacy.

 

Main Features

1. Total reflection optical system can reduce energy loss to ensure better signal-to-noise ratio and lower detection limit.

2. Standard deuterium lamp background correction for all models. Standard high-performance self-absorption background correction for double beam models, and optional for the models with 8-lamp turret.

3. Automatic pneumatic control module ensures the device safety and accuracy and protects the operator and device better.

4. Automatic vertical 4/8-lamp turret supports high-performance element lamp, can be rotated 360 degrees and make sure the test accuracy and reliability is not affected by the gravity.

5. Modular design for optical system and circuit makes the maintenance and repair simple.

6. Professional, automatic and easy to operate full operation RGWIN AAS software under MS window system and QA/QC function.

7. Transversely heated graphite tube ensures the consistency of the gas temperature in the graphite tube, and make the sample reach the atomic temperature instantly and simultaneously, improve atomic efficiency and test accuracy, ensure that the analysis results are more accurate, reduce the requirements for furnace body and prolong lifetime.

8. Safety protection system: pressure monitoring (the graphite furnace will not work if the argon pressure is too high or too low), graphite tube installation self-inspection.


Graphite Furnace AAS Specification

Model

AA3014

AA3018

Optical System

Optical Type

Single beam

Single beam

Monochromator

Czerny-Turner type with focal lengths at 350mm

Wavelength Range

190-900nm

Grating

Holographic diffraction grating with 1800 lines/mm

Slits

Automated slit selection 0.1, 0.2, 0.4, 0.7, 1.4, 2.0 nm

Wavelength Accuracy

±0.3 nm

±0.2 nm

Wavelength Repeatability

±0.1nm

±0.1nm

Lamp

Automated 4-lamp turret

Automated 8-lamp turret

Detector

Wide range UV sensitive photomultiplier tube

Photometric

Performance

Reading Mode

Transmittance(T), Absorbance(A), Concentration(C)

Photometric Range

0-125%, -0.1-3.00A

Static Baseline Drift (Cu)

0.004A/30 min

0.003A/30 min

Dynamic Baseline Drift (Cu)

0.006A/15 min

0.005A/15 min

Background Correction

Deuterium (D2) Background Correction

Graphite

Furnace

Analysis

Characteristic Concentration

Cd0.9pg , Cu20pg

Cd0.9pg , Cu20pg

Detection Limit

Cd1.5pg , Cu25pg

Cd1.5pg , Cu25pg

Repeatability (Cu)

RSD4%

RSD4%

Temperature Range

Ambient -3000

Ambient -3000

Ramp and holding time

1-255s

1-255s

Heating Rate

Maximum linear heating rate 2000/s

Atomization Heating Method

Light-controlled heating, Time-controlled heating, General heating

Gas Flow Rate Inside Tube

1 L/min

Gas Flow Rate Outside Tube

4-speed adjustable (0, 50, 200, 250ml/min)

Safety Protection

Water flow sensor, Argon pressure sensor, Furnace body temperature sensor, Graphite tube installation self-inspection.

Data Processing

Software

RGWIN AAS software package

Analytical Method

Flame AA, Flame AE, Hydride Generation

Concentration Calculation

Method

Standard curve(6 linear/non-linear fitting), Standard Addition, Interpolation

Repeated Measurement Times

1-30 times, calculate the average, show SD and RSD value of absorbance and concentration

QA/QC Function

Correlation coefficient, SD & RSD of Abs and calculate SD & RSD of concentration

Report Printing

Parameter printing, resulting printing

Communication Port

Standard RS-232

Others

Computer

External(excluded)

Dimension & Weight

850*650*550MM(W*D*H), 100Kg

Power Supply

110/220V, 50/60Hz

Working Environment

Temperature 10 ~ 35 °C, Humidity85%

Packing List

NO.

Description

Qty

NO.

Description

Qty

1

Main Unit

1

9

Argon pressure reducing valve connector

1

2

Power Cable

1

10

High power socket

1

3

Data Cable

1

11

6*4mm argon tube(transparent)

10m

4

Screw Driver

1

12

5-50ul pipette

1

5

Cd HCL

1

13

200ul pipette tip(1000pc/bag)

1

6

USB(manual and software)

1

14

6*10mm cooling water tube

6m

7

5A fuse

3

15

Graphite furnace camera connection cable

1

8

Graphite tube

5

16

 




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