Introduction
An atomic absorption spectrophotometer (AAS) is an analytical instrument used to determine the concentration of metals and metalloids in a sample by measuring the absorption of light by the atoms of the element in the gas phase, and it is one of the most widely used instruments for trace metal analysis in environmental, clinical, food, pharmaceutical, and industrial laboratories. In operation, the sample is digested or prepared in solution, and a small volume is aspirated into the instrument, where it is atomized, either by a flame, in flame atomic absorption, or by an electrothermal atomizer, such as a graphite furnace, in graphite furnace atomic absorption; the atoms absorb light from a hollow cathode lamp, which emits light at the characteristic wavelength of the element of interest, and the amount of light absorbed is proportional to the concentration of the element in the sample, and the concentration is determined by comparison with calibration standards; flame AAS is rapid and economical for higher concentrations, while graphite furnace AAS provides much higher sensitivity for trace analysis, and the instrument may include an autosampler and a hydride or cold vapor generation system for elements such as arsenic, selenium, and mercury. Atomic absorption spectrophotometers are used for analyzing metals in water and wastewater, in soil and sediments, in foods and beverages, in biological samples, in pharmaceuticals, in petroleum products, in industrial materials, and for many other applications, and they are available as benchtop instruments with features such as multiple elements, automated operation, and data analysis. With their sensitivity and specificity, atomic absorption spectrophotometers are essential for trace metal analysis.
Atomic Absorption Spectrophotometer LAAS-T2030
Atomic Absorption Spectrophotometer features a 1000mm focal length Czerny-Turner spectrometer with a high-density holographic grating. This spectrophotometer provides exceptional resolut...
Atomic Absorption Spectrophotometer LAAS-T2026
Atomic Absorption Spectrophotometer features an automatically adjustable spectral bandwidth of 0.1, 0.2, 0.4, 1.0, and 2.0nm for precise element analysis. Its high-intensity hollow catho...
Flame Atomic Absorption Spectrophotometer LAAS-T2015
Flame Atomic Absorption Spectrophotometer employs a 3-lamp flame method with a grating rate of 1800/mm. It offers automatic spectral bandwidth adjustments from 0.1 to 2.0 nm. The atomiza...
Atomic Absorption Spectrophotometer LAAS-T2025
Atomic Absorption Spectrophotometer operates within a wavelength range of 190 to 900 nm. It features advanced graphite furnace temperature control. This spectrophotometer is fully PC-con...
Atomic Absorption Spectrophotometer LAAS-T2024
Atomic Absorption Spectrophotometer offers a wide wavelength range of 190nm to 900nm. It consists of an 8-lamp turret with fully automatic change and optimization. Includes a modular gas...
Atomic Absorption Spectrophotometer LAAS-T2014
Atomic Absorption Spectrophotometer effortlessly determines the concentration of specific elements in the sample. Designed with a PC controller mechanism to allow the user to switch betw...
Flame Atomic Absorption Spectrophotometer LAAS-T2012
Flame Atomic Absorption Spectrophotometer offers high sensitivity across the entire UV-Vis range (typically 190-900nm). It also offers a dedicated setup for the highly sensitive determin...
Atomic Absorption Spectrophotometer LAAS-T2013
Atomic Absorption Spectrophotometer operates at wavelengths between 190 and 900 nm. Integrated with flame/graphite furnace atomization system, offering versatile analysis to both high co...
Atomic Absorption Spectrophotometer LAAS-T2011
Atomic Absorption Spectrophotometer operates at wavelengths between 190 and 900 nm. It is a dual-beam source system that assists in identifying trace elements. Equipped with deuterium la...
Atomic Absorption Spectrophotometer LAAS-T2020
Atomic Absorption Spectrophotometer supports a wavelength range from 190 to 900 nm. It ensures wavelength accuracy of ±0.15 nm, with automatic turret for ≤6 lamps alignment. An adjusta...
Atomic Absorption Spectrophotometer LAAS-T2021
Atomic Absorption spectrophotometer comes with flame, graphite furnace and hydride generation system to meet different customer demand. It consist of 1800/mm reticle large are grating mo...
Atomic Absorption Spectrophotometer LAAS-T2022
Atomic Absorption spectrophotometer comes with flame, graphite furnace and hydride generation system to meet different customer demand. It is provided with deuterium hollow cathode lamp ...
Atomic Absorption Spectrophotometer LAAS-T2023
Atomic Absorption Spectrophotometer provides low detection limit of 0.4 x 10⁻¹² g for Cadmium, capable of detecting copper at levels as low as 0.002 µg/mL. The fully closed optical s...
Standards
European Pharmacopoeia 2.2.25-Spectrophotometry, ultraviolet and visible
ASTM E275-08(2022)-Standard Practice for Describing and Measuring Performance of Ultraviolet, Visible, and Near-Infrared Spectrophotometers
Complies with the above standards, but is not limited to them.
Features
1. Atomic absorption spectrophotometer (AAS) for elemental analysis by atomic absorption.
2. Flame and/or graphite furnace atomization for trace metal determination.
3. Suitable for environmental, food, pharmaceutical, clinical, industrial and research labs.
4. Includes light source, atomizer, optical system, detector, software and manual.
5. Supports quantitative trace elemental analysis for metals in various matrices.
FAQ
Q1: What testing scenarios is this AAS mainly applied to?
A: The atomic absorption spectrophotometer is used in environmental monitoring, food and beverage, pharmaceutical analysis, clinical diagnostics, industrial processing, mining, agriculture and research to measure trace metal concentrations in liquid samples by atomic absorption spectroscopy for environmental compliance, food safety, pharmaceutical quality control and research. It supports environmental water, soil and waste heavy metal analysis (Pb, Cd, Hg, As, Cr, etc.), food and beverage heavy metal testing (food safety compliance), pharmaceutical elemental impurity testing (ICH Q3D, USP <232>), clinical toxicology and nutritional element analysis, industrial process water and effluent monitoring, mining and mineral analysis, and agricultural soil and plant analysis. AAS provides sensitive, selective measurement of trace metals, widely used for regulatory compliance and quality control across multiple industries.
Q2: What standards does the AAS comply with?
A: The atomic absorption spectrophotometer follows relevant ISO, ASTM and GB/T standards for atomic absorption spectrometry, including ISO 11047 for soil, ASTM D4691 for water, and relevant food (GB 5009) and pharmaceutical (USP <233>, ICH Q3D) standards. The hardware complies with IEC 61010 laboratory safety standards. Calibration should use certified reference standards traceable to international standards. For graphite furnace, follow applicable method requirements. Fuel gas (acetylene, nitrous oxide) safety follows applicable regulations.
Q3: What is the warranty period for the whole machine and key components?
A: The whole AAS system is covered by a 12-month warranty. The light source (hollow cathode lamps), atomizer (burner/graphite furnace), optical system, detector, electronics, software and housing are covered, while lamps, graphite tubes, tubing and fuses are consumables. Damage from improper use or unauthorized repair is excluded. Extended service contracts are standard for this analytical instrument.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires trained analytical chemists familiar with AAS, sample preparation and gas safety. We provide comprehensive training, operation manuals and application support. Proper sample preparation, lamp selection, calibration, atomizer operation, gas safety, method optimization and data interpretation are important for accurate, reliable analysis.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Calibration with certified standards recommended before each analytical batch. Lamp condition and alignment checked. Burner (flame) or graphite tube (furnace) condition verified. Gas flow and pressure checked. Full system performance verification annually. Wavelength accuracy verified periodically. Software updates installed as needed.
Q7: Are supporting consumables universal?
A: Hollow cathode lamps, graphite tubes, standards, gases (acetylene, nitrous oxide, argon) and tubing are available from laboratory suppliers, though instrument-specific parts should be verified. Long-term consumable cost depends on sample volume, element count and atomization type (graphite furnace consumes more).
Q8: Can I customize parameters or supporting accessories?
A: Customization includes atomization type (flame, graphite furnace, both), number of lamps, detector type, autosampler, hydride generation (for As, Se, Hg), cold vapor (for Hg), software features and accessories. Additional lamps, autosamplers and accessories can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: Yes, AAS systems include on-site installation, commissioning, calibration and operator training by certified AAS specialists. Site preparation guidance is provided before delivery to ensure power, gas, ventilation and fume extraction requirements are met.
Q10: What types of samples are compatible with this equipment?
A: The AAS measures trace metals in aqueous solutions including environmental water, food digests, pharmaceutical solutions, clinical samples, soil extracts, industrial water and other liquid samples within the concentration range, element type and specification. Different elements require specific hollow cathode lamps, atomization conditions (flame for higher concentrations, graphite furnace for trace levels) and may require special techniques (hydride generation for As, Se, Sn; cold vapor for Hg). Samples should be properly digested/extracted and free of particulates. Users should follow the specific test method for sample preparation, select appropriate atomization technique for the concentration range, calibrate with matrix-matched standards or use standard addition for complex matrices, use proper gas supply and safety procedures, include quality control samples (blanks, spikes, certified reference materials), report results with method and detection limit specified, and for regulatory compliance, follow applicable standards. The AAS should be operated with proper fume extraction (flame AAS produces combustion products and metal fumes). Fuel gas cylinders should be properly secured and ventilated. For graphite furnace, use proper argon supply and graphite tube maintenance. The instrument should be allowed proper warm-up time before analysis. For volatile elements (Hg, As), use appropriate techniques (cold vapor, hydride generation) to improve sensitivity. Waste should be disposed of per hazardous waste regulations (heavy metal waste).
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