AA-1800C
AA-1800C is a multifunctional atomic absorption spectrometer with
two background correction methods, D lamp background elimination
and self-absorption background deduction. It is a high precision
analytical instrument integrates flame atomic absorption
spectrometry (abbreviated as FAAS), and hydride generation atomic
absorption spectrometry (abbreviated as HG-AAS), and atomic
emission spectrometry (abbreviated as AES). An auto-sampler is
optional to equip with graphite furnace atomic absorption
spectrometry. AA-1800C is widely used in geology, metallurgy,
mining, petroleum, chemical industry, mechanical, agriculture, food
industry, medicine, health, antiepidemic, environmental protection,
and other industries. And it is an essential high precision
analytical instrument for scientific research institutes, colleges
and universities, and related enterprises.
AA-1800 atomic absorption spectrophotometer is now widely used in
scientific research,quality control, disease control, environmental
protection, metallurgy, agriculture,chemical industry .Hardware and
software design of innovation to ensure the accuracy,safety, ease
of use in the analysis of samples, equipment maintenance, simple
and convenient.
Main features
- Advanced determination of flame atomic absorption spectrometry
It is developed by experienced professors and senior engineers who
are engaged in analytical instrument industry of atomic absorption
spectrometry for many years. The background correction with
Deuterium hollow cathode lamp can eliminate the interference of
molecular absorption in low content determination. The detection
sensitivity is greatly improved, and the value is less than 0.015
μg/ml/1%.
- High detection sensitivity and low detection limit of hydride
generation atomic absorption spectrometry
The import known-how such as the advanced pneumatic component
theory, and high performance hollow cathode lamp guarantees the
hydride generation atomic absorption spectrometry performing a high
detection sensitivity and low detection limit. For example, the
detection sensitivity of Arsenic element is better than 0.08
ng/ml/1%. The instrument precision is also greatly improved.
- Convenient software operation system provides reliable data
processing result
The data processing system of AA-1800C is an application of new
data processing achievement in the field of atomic absorption
spectrometry. It provides reliable data processing result.
Meanwhile, the special designed operation software system is
advanced and convenient.
- Special designed double-loop power supply for the high performance
hollow cathode lamp
AA-1800C uses special designed double-loop power supply for the
high performance hollow cathode lamp, which is convenient for lamp
adjusting. It not only improves the lamp energy of some element,
but also improves the detection sensitivity to several times. And
the performance indexes of the instrument such as stability and
detection sensitivity are greatly improved.
- Unique micro-volume sampler with constant current pulse
A unique micro-volume sampler with constant current pulse that
designed based on the pneumatic component theory is optional to
equip with flame atomic absorption spectrometry. The sample volume
can be reduced to 0.1 ml, however, there is few influence on the
detection sensitivity. And a relative standard deviation about of
1% can be obtained. Thus, it is very significant to medicine and
health care industry.
- Innovative detection system
Innovative atomic absorption detection system guarantees the
instrument having an excellent stability. For a non-zeeman atomic
absorption spectrometer, the detection precision of 0.0001A makes
it to be unique.
The instrument is controlled by the USB port of computer, which is
an advanced communication method. User can choose the computer as
required, and that is also available for other laboratory use.
However, to avoid viruses, please don’t use this computer for
internet surfing.
1.3 Instrument Specifications
The instrument specifications are described in the following table:
| Items | Specifications | |
| Monochromator: | | |
| Wavelength Rage: | 190 nm ~900 nm | |
| Wavelength Accuracy: | ≤0.15 nm | |
| Grating: | 1800 lines/mm | |
| Optical System: | C-T | |
| Blazed Wavelength: | 250 nm | |
| Focal Length: | 280 nm | |
| Reciprocal Linear Dispersion: | 2 nm/mm | |
| Bandwidth: | 1 mm / 0.2 mm / 0.05 mm, selectable | |
| Detection Sensitivity: | | |
| FAAS: | Cu: ≤0.05 μg/ml | |
| Detection Limit: | | |
| FAAS: | Cu: ≤0.008 μg/ml | |
| Measurement Repeatability(RSD): | | |
| FAAS: | Cu: ≤1% | |
| Stability (Baseline Drift): | ≤ 0.005 A/30min | |
| Detection System: | | |
| Photomultiplier (MPT): | R928 / R955 | |
| Negative High Voltage: | 150 V ~ 800 V | |
| Gain: | ×1, ×2, ×4 | |
| Light Source: | | |
| Lamps: | HCL, HPHCL, Dz | |
| Lamp Position: | No. 1 ~ No. 4: HCL | |
| No. 5 , No. 6: HPHCL | |
| Independent holder: Dz | |
| Lamp Current: | HCL: 0.5 mA ~ 9.9 mA | |
| HPHCL: 0.5 mA ~ 9.9 mA (main current), 0.5 mA ~ 9.9 mA (auxiliary current) | |
| Dz: 0.5 mA ~ 19.9 mA | |
| Flame atomization System: | | |
| Nebulizer: | Glass nebulizer with metal sheath designed by Mr. Wu | |
| Burner: | 100 mm Steel of Titanium alloy | |
| Flame Ignitor: | Electronic pulse ignition | |
| Gas Flow Path: | Dual-channel designed, automatic security device with fuel gas
flameout system | |
| Items | Specifications | |
| Signal Processing: | | |
| Signal Output: | Total absorbance, net absorbance, background absorbance | |
| Calculation methods: | Average, peak height, peak area | |
| Readings: | Absorbance: 0.001~2.000, 0.0001~2.0000, Concentration:0.001~9999 | |
| Calibration methods: | 4 fitting methods, each curve up to 10 points | |
| Statistics: | SD, RSD, precision | |
| Background correction methods: | D lamp background elimination, self-absorption background deduction | |
| Dimensions: | | |
| Main Structure: | 988 mm× 412 mm× 440 mm (L×W×H) | |
| Power Supply of Graphite Furnace: | 430 mm× 412 mm× 400 mm(L×W×H) | |
