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Dual channel atomic fluorescence spectrometer is widely used for trace and ultra trace analysis of 11 elements, including mercury (Hg), arsenic (As), antimony (Sb), bismuth (Bi), selenium (Se), tellurium (Te), cadmium (Cd), germanium (Ge), lead (Pb), tin (Sn), zinc (Zn), etc. It has a compact size, stable performance, and simple operation.
Performance advantages
1. High precision airflow control system
The instrument adopts a high-precision mass flow controller for gas flow control, with an accuracy of less than 1ml/min. At the same time, it has an abnormal situation protection function, which automatically cuts off the gas source when the instrument is not working, saving gas consumption.
2. Intelligent high-performance hollow cathode lamp
The instrument is equipped with intelligent high-performance hollow cathode lamps, which can automatically identify the type of element lamp, factory number, record the working life of the light source, and provide the best working conditions for the instrument.
3. High precision peristaltic pump injection system
The high-precision dual peristaltic pump intermittent flow injection system is adopted, which can ensure the accuracy and repeatability of injection, simple operation, low failure rate, and long service life.
4. Online dilution method for creating standard curves
The production of standard curves only requires a standard solution at the highest concentration point, and the instrument can perform functions such as automatic dilution of high concentration samples and automatic cleaning of pipelines, greatly saving the preparation time and usage cost of standard samples.
5. Real time observation of flames
The instrument adopts a real-time video flame monitoring system, which makes the flame monitoring of the working state more intelligent. During the testing process, the flame state can be observed in real time, reducing the probability of introducing external interference and greatly facilitating user use.
6. Front dual light source design
It can perform simultaneous analysis of two elements and has single channel enhancement function, significantly improving element sensitivity and reducing element detection limit. Light source replacement is convenient and fast.
7. The latest efficient two-stage gas-liquid separation
Effectively carry out gas-liquid separation, minimize the impact of water vapor on testing, and improve the sensitivity of testing.
8. Convenient intelligent operation software
Switching between Chinese and English interface operating system, fully automatic qualitative and quantitative analysis, setting up program software for automatic testing, operators switching samples according to the instrument buzzer prompt sound, automatic calculation of sample content after testing, automatic generation of test reports and other functions.
TECHNICAL INDEX
1. Range of detection elements
11 elements including As, Sb, Bi, Hg, Se, Te, Pb, Sn, Ge, Zn, Cd, etc.
2. Element detection limit
As、Se、Pb、Bi、Sb、Te、Sn、Hg≤0.01μg/L；
Hg (cold mercury) Cd≤0.001μg/L；
Zn≤1.0μg/L；
Ge≤0.05μg/L。
3. Precision (RSD)
RSD ≤ 1%
4. Linear range
More than three orders of magnitude
Application Fields
Atomic fluorescence spectrometer has a wide range of applications, mainly testing the content of 11 ultra trace elements in samples, with a minimum detection limit of up to one billionth. The application areas include water quality, soil, atmospheric and other environmental testing projects, food inspection, inspection and quarantine, drug inspection, cosmetics inspection, soil, feed and fertilizer inspection, geological and mineral testing, metallurgical sample inspection, teaching and research, etc.
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