Dual channel atomic fluorescence spectrometer
application field
Atomic fluorescence spectrometer has a wide range of application fields, mainly testing the content of 11 ultra-trace elements in samples, and the detection limit can reach one hundred billionths. The application fields include water quality, soil, atmosphere and other environmental testing items, food inspection, inspection and quarantine, drug inspection, cosmetic inspection, soil feed and fertilizer inspection, geological and mineral testing, metallurgical sample inspection, teaching and research, etc.
Dual-channel atomic fluorescence spectrometer is widely used in mercury (Hg), arsenic (As), antimony (Sb), bismuth (Bi), selenium (Se), tellurium (Te), cadmium (Cd), germanium (Ge), lead (Pb), tin (Sn), zinc (Zn) and other elements of trace, ultra-trace analysis, small size, stable performance, simple operation.
performance advantage
1. High-precision air flow 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 the function of abnormal situation protection. The instrument automatically cuts off the gas source when it is not working, saving gas consumption.
2. Intelligent high-performance hollow cathode lamp
The instrument is equipped with an intelligent high-performance hollow cathode lamp, which can automatically identify the type of element lamp, factory number, record the working life of the light source, and provide suitable working conditions for the instrument.
3. High-precision peristaltic pump sampling system
High precision double peristaltic pump intermittent flow sampling system can ensure the accuracy and repeatability of injection, simple operation, low failure rate and long service life.
4. Make a standard curve by online dilution method
The production of a standard curve requires only a standard solution with a high concentration point, and the instrument can perform functions such as automatic dilution of high-concentration samples and automatic cleaning of pipelines, which greatly saves the preparation time and cost of standard samples.
5. Real-time flame observation
The instrument adopts a real-time video flame monitoring system, which makes the flame monitoring of the working state more intelligent. During the test, the flame state can be observed in real time, which reduces the probability of introducing external interference and greatly facilitates the use of users.
6. Front dual light source design
Two elements can be analyzed at the same time, and has a single channel enhancement function, which significantly improves the sensitivity of elements and reduces the detection limit of elements. Light source replacement is convenient and fast.
7. Efficient secondary gas-liquid separation
Effectively perform gas-liquid separation, eliminate the influence of water vapor on the test to a certain extent, and improve the sensitivity of the test.
8. Convenient and intelligent operation software
Chinese and English switching interface operating system, fully automatic qualitative and quantitative analysis, set up the program software for automatic testing, the operator switches the sample according to the prompt tone of the instrument buzzer, automatically calculates the sample content after the test is completed, and automatically generates test reports and other functions.
Technical indicators
1. Detection element range
As、Sb、Bi、Hg、Se、Te、Pb、Sn、Ge、Zn、Cd 等 11 种元素。
2. Element detection limit
As、Se、Pb、Bi、Sb、Te、Sn、Hg0.01μg/L;
Hg ( sentire Cd0.001μg/L;
Zn1.0μg/L;
Ge0.05μg / L.
3. Precision (RSD)
RSD 1%
4. Linear range
More than three orders of magnitude









