AFS-100 Intelligent Atomic Fluorescence Spectrometer (equipped with 206 bit automatic sampler) Purpose:

Teaching research, health and epidemic prevention, medical clinical testing, drug testing, food hygiene testing, urban water supply and drainage testing, agricultural product testing, beverage testing, environmental monitoring, cosmetics testing, metallurgical sample testing, geological survey testing, etc. Used for trace analysis of twelve elements including As, Sb, Bi, Hg, Se, Te, Sn, Ge, Pb, Zn, Cd, and Au in samples.

Intelligent atomic fluorescence spectrometer is mainly used for analyzing the content of metal elements, including but not limited to environmental monitoring, food safety, pharmaceutical chemistry, metallurgical minerals, energy materials and other fields.

Technical specifications of intelligent atomic fluorescence spectrometer:

Detection limit DL:

As、Se、Pb、Bi、Sb、Te、Sn<0.01μg/L

Hg、Cd<0.001μg/L

Ge<0.05μg/L

Zn<1.0μg/L

Au<3.0μg/L

Relative standard deviation RSD<1%

3 linear range: greater than three orders of magnitude

Interference between channels: ≤± 1%

5 Noise: ≤ 1%

6 Drift: ≤ 2%

Intelligent Atomic Fluorescence Spectrometer

Main technical features:

1. This model features a dual channel design that allows for simultaneous measurement of two elements. Both channels come with enhanced functionality and can be upgraded to four channels according to different customer needs.

2. The element lamp is automatically recognized by an encoder, equipped with a file management and anti-counterfeiting recognition device for light source consumables. It uses high-frequency pulse power supply to automatically activate and start the light, and the lamp current is monitored in real time.

3. The element lamp is designed with a sloping angle between 45 ° and 85 ° to reduce interference between light sources, and has the advantage of low background and high signal. Ordinary element lamps are plug and play.

4. Adopting a dual peristaltic pump injection system By separately controlling the injection and waste disposal, it is easier to achieve the optimal experimental conditions. The waste disposal speed can be set separately, greatly reducing the phenomenon of fluorescence sudden death caused by the effective fluorescence signal being carried away by the waste liquid and preventing sensitivity reduction. The two modes of intermittent injection and continuous injection can be automatically switched.

(1) The dual peristaltic pump consists of ten rollers and two channels, each of which can be adjusted separately. The peristaltic pump injection system has the characteristic of fast sample measurement speed (less than 20 seconds for a single sample measurement), which shortens the detection time and improves work efficiency. Suitable for the detection of turbid and complex matrix samples.

(2) The peristaltic pump tube adopts 100% imported original packaging and no longer undergoes manual secondary processing. The service life of one original pump tube is more than twice that of conventional pump tubes.

5. Equipped with drift compensation function, automatically optimizing element lamp drift to ensure instrument stability; Continuous measurement of arsenic antimony standard solution for 4 hours, with a maximum drift of no more than 2%. It is possible to set n samples per interval to retest the current carrying blank, with a maximum deviation of no more than 10% from the initial current carrying blank fluorescence value. The mercury lamp is automatically activated and does not require the use of auxiliary tools to ignite after prolonged use.

6. By using the technique of eliminating inter channel interference, during the measurement process, the hollow cathode lamp is powered by a constant current pulse power supply and alternately lit to excite atomic fluorescence signals of different elements, achieving the goal of simultaneous measurement of multiple elements and eliminating the influence on the next channel signal, ensuring that each data is accurate and reliable.

7. Atomizer: Shielded low-temperature ignition quartz furnace atomizer with argon hydrogen flame observation window, capable of real-time monitoring of flame status.

8. Adopting a dual gas-liquid separation device:

The primary gas-liquid separator has the function of quickly removing foam to prevent the reaction solution from entering the atomizer; There is a check valve in the carrier gas path to prevent the reaction solution from entering the gas path;

Secondary gas-liquid separator: adopting a new device for removing water vapor, without the need for adding water or manual drainage;

It can achieve full pipeline cleaning, including primary gas-liquid separator, secondary gas-liquid separator, and hydride transmission pipeline, to avoid residual reaction system and pipeline crystallization. When using an automatic sampler, the cleaning process has an emptying function.

9. Gas system: capable of real-time display of gas flow rate and abnormal flow rate prompts, as well as safety protection for unloaded gas; After the test is completed, turn off the gas and enter the gas saving mode. The gas circuit will automatically open during sample preparation.

10. Detector: Photomultiplier tube, with a lifespan of over 10 years.

11. Optical system: Short focal length lens focusing, non dispersive closed optical system, and device for removing stray light.

12. The instrument has two detection modes, low sensitivity and high sensitivity, which are suitable for detecting samples of different concentrations.

13. Software system: After entering the software, the system automatically resets, and the instrument functions self check. It has a memory function that can automatically read the previous condition settings, a misoperation prompt function, a carrier gas alarm function, an automatic ignition function, real-time storage of measurement spectra, a sampling system selection function, a one click measurement function, an automatic sampler that can set the probe depth of the injection needle, and a batch printing function that can classify and print instrument conditions, sample information, standard samples, and unknown samples in batches. Chinese operating software suitable for any Windows system.

14. The software can set blank discrimination values, monitor blank cleaning, compare the reaction before sampling and after cleaning, and automatically determine whether the flow path is clean.

15. Equipped with a capture trap device that can remove harmful gases from exhaust gas, reducing physical harm to operators and minimizing environmental pollution.

16. It has an upgradable element morphology testing interface, which can be optionally upgraded to detect the valence states of elements such as arsenic (As), mercury (Hg), selenium (Se), antimony (Sb), etc. The total amount and morphology can be automatically switched.

17. Optional 206 position 3D disc automatic sampler, including 200 10ml sample cups and 6 50ml large volume sample cups. The sample tray can also be equipped with 10mL and 50mL stoppered colorimetric tubes to achieve sample processing and measurement in the same container, effectively avoiding secondary pollution caused by transfer.

Injection needle cleaning function: equipped with injection needle cleaning function, cleaning the inner/outer walls to reduce cross contamination, and with emptying function.

Coordinate method: Adopting an independent coordinate setting method instead of the traditional interval calculation method, each sample grade can be individually set with coordinates, greatly reducing the failure rate and improving analysis efficiency.

Positioning accuracy: ± 0.5mm, positioning repeatability: 0.3mm, sample retention rate:<0.1%.

18. The automatic sampler can be upgraded with an integrated carbon fiber injection needle, which adopts a locking structure at both ends. The material in contact with the reagent is PTFE material, which has strong resistance to strong acids, bases, and organic solvents. The skeleton is made of improved carbon fiber material, which has certain strength and is easy to clamp and fix. This injection needle can avoid the risk of liquid leakage caused by secondary connection of the pipeline, as well as the problem of glass tubes being prone to breakage, breakage, and liquid hanging.