AAS 7800 Atomic Absorption Spectrophotometer 190-900nm Laboratory For Metal Element Analysis With PC Software

7800 Atomic Absorption Spectrophotometer

The multi-media graphite furnace visual system can intuitively monitor the sample’s dynamic evolution during drying, ashing and residue burning process in the graphite tube. It enables convenient observation of the auto sampler’s capillary injection needle reaching the best position and depth in the tube, as well as the position of the platform placed in the graphite tube. It ensures analysis precision and graphite tube’s lifetime.

♦Sensitive and Reliable

Electronic control of flame gas flow

Closed & isolated optical system

Suspension type of optical platform design

Power control of graphite furnace temperature programming

♦Flexible Configuration

Flame only, graphite furnace only, and combined flame & graphite furnace are available according to demand

One instrument has multifunctional configuration of flame, graphite furnace and hydride generator

6-lamp turret meets the requirement of multi-elements analysis

Complete optional accessories support the instrument’s upgrade and extension

♦Compact and Easy to Use

Stack design of combined flame and graphite furnace makes the system compact, 10 seconds to complete flame/graphite furnace switch

High-performance auto sampler conveniently and reliably improves laboratory efficiency

Intelligent EZPectrumTM workstation provides simple and easy-to-use user experience and laboratory standard requirements

♦Convenient Operation

National initiative visual system of atomization in graphite furnace

Dynamically monitor drying, ashing and atomization process

Intuitively control the depth and position of sampling

Perfectly demonstrate graphite furnace sampling

7800 Flame Atomic Absorption Spectrophotometer

7800 Atomic Absorption Spectrophotometer is fully PC controlled. It can be flexibly equipped with optional graphite furnace, auto sampler, and hydride generator.

Unique optical mechanical design, safe and convenient flame system, optional background correction technologies, as well as convenient functions provided by the workstation, suit your pursuit of automatic and precise test results.

Main Features

♦ Compact and delicate appearance

♦ Convenient options of background correction method

♦ Unique optical design

♦ Perfect automation control is easily realized by using the software workstation

♦ Safe, reliable and convenient flame system

♦ Multifunctional software workstation

Specifications

6-lamp turret:

♦ Wavelength range: 190-900nm

♦ Wavelength indication error: ≤±0.3nm

♦ Wavelength repeatability: ≤0.15nm

♦ Photometric range: -0.1-2.5 (A)

♦ Spectral bandwidth: 0.1, 0.2, 0.4, 0.7, 1.0, 2.0nm

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

♦ D2 background correction capability: ≥50 times when background signal =1A

♦ Self reversal background correction

♦ Power supply: AC220V±22V 50Hz±1Hz

Flame System

♦ Air/Acetylene burner head: 100mm

♦ Nitrous oxide /Acetylene burner head: 50mm

♦ Spray chamber: polypropylene coating

♦ Ignition dynamic baseline stability: ≤0.004ABS/30min(Cu)

♦ Characteristic concentration: ≤0.02μg / ml / 1%

♦ Repeatability : Cu≤0.5%;(Absorbance>0.8Abs)

♦ Detection limit: Cu≤0.004ug/ml

♦ Safety system: automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched.

7800 Graphite Furnace Atomic Absorption Spectrophotometer

It achieves perfect combination of graphite furnace and automation technology. Integrate graphite furnace and auto sampler into one module, and solve the problems of auto sampler adjustment and optical path calibration during switching process. Checked by hundreds of laboratories, this graphite furnace system is extremely cost effective.

It can be used with flame atomic absorption spectrophotometer. From high concentration ppm level to trace ppt level can all be analyzed. The atomizer needs no switching, which greatly simplifies operation.

Main Features

♦ 6-lamp turret, multi-lamps can be preheated simultaneously

♦ 85 position auto sampler

♦ Max. heating speed: 3000℃/s; Working temperature of graphite furnace: room temperature-3000℃

♦ Compact design, fully automatic process control

♦ Self reversal and D2 background correction

Gas Control

♦ Separate control of in-tube gas and external gas. During the analysis, keep the gas flowing outside the tube, cut off the gas in the tube at atomization stage, effectively protect graphite tube, maximize the tube’s lifetime, and gain high analysis sensitivity.

Visual System of Graphite Furnace 

♦ The national-initiative unique multimedia graphite furnace visual system can intuitively monitor the sample’s dynamic evolution during drying, ashing and residue burning process in the graphite tube. It enables convenient observation of the auto sampler’s capillary injection needle reaching the best position and depth in the tube, as well as the position of the platform placed in the graphite tube. It ensures analysis precision and graphite tube’s lifetime. Meanwhile, it is a a perfect training tool.

Specifications

♦ Max. heating speed: 3000℃/s;

♦ Working temperature of graphite furnace: room temperature-3000℃

♦ Characteristic value: Cd≤1pg;Cu≤10pg

♦ Precision RSD: Cd≤3%;Cu≤3%

♦ Weight: 80kg

♦ Dimension: 700*550*440mm

♦ Safety: over current protection, alarm when the pressure of protection gas is low, automatically stop heating when over temperature  

♦ Power supply: 220VAC

♦ Power: 6000W (instantaneous maximum power)

7800 Multi-elements Fast Analysis Atomic Absorption Spectrophotometer

The outstanding feature of this product is that multi-elements can be analyzed simultaneously. It is very suitable for analyzing multiple components in one sample. It uses similar analysis mode to that of ICP, but has the price of atomic absorption spectrophotometer. It can greatly increase analysis efficiency and save sample volume. Besides, this model, according to user’s demand, can also analyze one single component, working in the same mode as a flame atomic absorption spectrophotometer.

Main Features:

♦ Simultaneously analyze 4-6 elements within one minute (similar speed to ICP)

AAS price while enjoy ICP function (multi-elements analysis simultaneously)

♦ Fast analysis, similar to the speed of ICP, test result of multiple components come out simultaneously by one sampling

♦ Freely combine the multiple elements according to the requires of analysis

♦ Save sample volume for multiple components analysis

♦ Rapid change of gas flow, grating rotation, slit and hollow cathode lamps

♦ Unique optical design greatly increases the sensitivity in visible range

♦ Excellent mechanical and optical system plus outstanding software ensure the measurement accuracy

Specifications

♦ Wavelength range: 190-900nm

♦ 6-lamp turret: 1 lamp working, and 3 lamps preheating

♦ Wavelength repeatability: ±0.1nm

♦ Wavelength accuracy: ±0.2nm whole range

♦ Photometric range: 0-2.5Abs

♦ Resolution: spectral bandwidth = 0.2nm, can separate Mn two lines(279.5nm and 279.8nm), valley/peak energy ratio<20%

♦ Spectral bandwidth: 0.1, 0.2, 0.4, 0.7, 1.0, 2.0nm

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

♦ Weight: 80kg

♦ Dimension: 500*450*430mm

♦ Grating: 1800lines/mm

♦ D2 background correction: background signal =1Abs, correction capability ≥50 times self reversal background correction