monochromator

Aberrant correction Czerny Turner device

Number of grating engraved lines

1800 pieces/mm

bandwidth

0.2, 0.7, 1.3, 2.0 nm (4-speed automatic switching)

detector

Photomultiplier tube

Photometric measurement method

Flame: Optical Dual Beam

Graphite furnace: electronic dual beam

Background correction

High speed self absorption (BGC-SR), with a self absorption frequency of not less than 100Hz

High speed deuterium lamp method (BGC-D2), with a deuterium lamp frequency of not less than 1000Hz. Hollow cathode lamp frequency not less than 500Hz

Number of lamp sockets

6 lamp sockets, 2 lamps light up simultaneously (1 preheating)

lighting system

Launch, NON-BGC，BGC-SR，BGC- D2

Baseline stability

0.004Abs/30min

data processing

software environment

Microsoft Windows 2000/xpTM

Parameter settings

Wizard method

Measurement method

Flame continuous method, flame micro injection method, graphite furnace method

Concentration conversion method

Calibration curve (can choose 1st, 2nd, 3rd order function)

Standard addition method/simplified standard addition method (first-order function)

repeated measurement

Up to 20 repetitions

Display mean, standard deviation (SD), and relative standard deviation (RSD)

Automatically exclude outliers based on standard deviation (SD) and relative standard deviation (RSD) values

baseline correction

Using peak height and peak area offset correction method to automatically correct baseline drift

Peak data processing range

Peak data processing range, with optional peak height and peak area methods.

Sensitivity correction

Automatically calibrate the calibration curve through sensitivity comparison

Analog Output

Dual channel (atomic absorption/energy signal and background signal)

Output range: 5.0, 2.5, 1.25, 0.625Abs/V (with four gear switches each)

EMISSION is fixed at 1VF S.

Table data processing function

Calculate the actual sample concentration using weight factor, dilution factor, constant volume factor, and correction factor.

Loading parameters

Template function available

multitasking

During the measurement process, other software such as MS Office can be used

Step/result display

MRT Work Order (MRT: Measurement Results Table)

Result printing

Summary report

QA/QC

Correlation coefficient,% After RSD, ICV/ICB, CCV/CCB, PB, LCS, SPK, PDS, DUP, QA/QC inspections, analysis can be paused, marked, or resumed

Retesting

You can choose whether to retest.

Automatic sampler automatically dilutes unknown samples and re measures them (flame microinjection method, graphite furnace method)

Electronic Records and Electronic Signatures

Registration ID/Password User Management

Permissions granted by user level restrictions

Log recording

Track and review

Electronic Signature

Size and weight

AA-7000F： Length 700 x Width 588 x Height 714 mm, 72 kg

AA-7000G： Length 700 x Width 580 x Height 538 mm, 65 kg

(Excluding protruding parts and optional items)

Range of environmental temperature and humidity

10°C～35°C，20%～80%

If the temperature exceeds 30 ° C, the humidity should be less than 70%

Burner head

10cm titanium (5cm titanium, used for N2O-C2H2 flame, optional)

atomizer

Pt Ir capillary tube, PTFE nozzle, ceramic impact ball (can be used for hydrofluoric acid)

Atomization chamber

Specially treated polypropylene

Position adjustment

AA-7000F：

Manually adjust the front, back, up, and down positions

AA-7000F (when installing the atomizer automatic switching device):

Automatic adjustment of front, back, up, and down positions

Automatically search for the optimal burner height

Angle adjustment

0-90 degrees

Gas controller

flow control

Automatic setting of gas and auxiliary gas flow rate (0.1 L/min increment)

Automatic setting of auxiliary gas flow rate (when installing optional components)

Automatically search for the optimal gas flow rate

safety performance

Automatic leak detection

Automatically switch the flow rate of air/N2O according to C2H2

flame monitor

Prevent misuse of burner heads

Gas pressure monitor

Waste liquid level monitor

Automatic detection of instantaneous power outage and safe shutdown function

Using vibration sensors to safely shut down the engine

Stop detection of fan inside the instrument

sensitivity

The absorbance of 2ppm Cu is about 0.32Abs

Detection limit of Cu: not greater than 0.004Pm

Heating control method

Drying: Current control method (with automatic temperature correction function)

Ashing/Atomization: Optical Temperature Control Method

Heating parameter setting

Maximum heating rate: 3000 ° C/second

Up to 20 segments

Heating method: slope/step

Internal gas type: 2-way switching

High sensitivity setting

Graphite furnace concentration enrichment cycle: up to 20 cycles

Optimal graphite furnace program search function

Internal gas flow rate: 0-1.5 L/min, gas control accuracy can reach 0.01L/min

sensitivity

Detection limit of Pb: 0.05ppb

safety performance

Cooling water flow monitor

Gas pressure monitor

Overcurrent protection (dual monitoring of circuit breaker and optical probe)

Inspection of graphite furnace cooling block

Position adjustment of graphite furnace

AA-7000G

Front back/up and down manual adjustment

AA-7000F (Installation of Atomizer Automatic Switching Device)

Automatic switching of motor drive for combustion head/graphite furnace

Automatic adjustment of front, back, up, and down positions