Atomic fluorescence part:

Having patented technology3 items:

1. Modular Architecture Design (Patent No. ZL. 9)

2. Built in intermittent flow injection device for combination of infusion pump and peristaltic pump (patent number: ZL)201120296851.7）

3. Automatic switching function between peristaltic pump injection and syringe pump injection (patent number: ZL.6)

1. Technical indicators:
◇ 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

Or <3.0μg/L

Relative standard deviation RSD<0.8%
◇ Linear range: greater than three orders of magnitude

2. Main performance indicators:

1. Suitable for trace analysis of twelve elements including arsenic, mercury, selenium, lead, germanium, tin, antimony, bismuth, cadmium, tellurium, zinc, gold, etc. in samples.
2. Simultaneous measurement of two elements in two channels.

3. Possessing patented technologymodular designSave maintenance costs, reduce system complexity, unique system scalability, and facilitate user customization.
4. A built-in intermittent flow sampling device that combines imported injection pumps and peristaltic pumps with patented technology: it continues the precise sampling characteristics of injection pumps and inherits the fast analysis speed of peristaltic pumps. The single measurement time is less than 40 seconds, and the mechanical power eliminates waste liquid, eliminates cross contamination, and saves sample and reagent usage.

5. Possessing patented technologyApplication of clamp valveAbandoning traditional one-way valves and multi pass valves, the reagent does not come into contact with the valve body, so it will not cause corrosion and memory, and has high reliability and a long service lifeMore than 500000 times.

6. Exclusive intermittent injection andContinuous injectionTwo injection methods: meet the measurement needs of different users for different samples.

7. Equipped with peristaltic pump injection and syringe pump injectionAuto SwitchFunction: The advantage of peristaltic pump lies in its fast analysis speed, with a single sample analysis not exceedingThe advantage of a 20 second infusion pump lies in its precision in injection. When it is necessary to automatically configure the standard curve or when the sample concentration exceeds the standard, the injection pump is switched to injection or dilution, and then automatically switches back to peristaltic pump injection mode to continue measurement. Improved the service life of the infusion pump and reduced the user's operating costs.
8. Adopt a dedicated peristaltic pump with ten rollers, six channels, and each channel can be independently adjusted.

9. Adopting pulse constant current power supply method: Compared with bundle pulse power supply method, stable constant current power supply method can prolong the service life of element lamps and improve their stability.

10. Can be equipped with a capture trap for measuring harmful elements in exhaust gas using hydride generation atomic fluorescence: capturing harmful gases and effectively reducing physical harm to experimental personnel.

11. Adopting an efficient gas-liquid separation device: the chemical reaction is more complete, and the gas-liquid separation effect is better.
12. Adopting a new closed two-stage gas-liquid separation device, there is no need to add liquid or discharge waste.
13. Adopting a specially coded hollow cathode lamp: The instrument automatically identifies elements and can monitor the service life of the hollow cathode lamp.
14. Unique designed shielded quartz furnace low-temperature atomizer: reduces fluorescence quenching and gas-phase interference, and improves atomization efficiency.
15. Advanced membrane separation gas-liquid isolation device: always protects the gas path from acid corrosion.
16. The gas system adopts an array structure: it automatically and accurately controls the gas flow rate, and has a new type of throttle device, effectively saving the consumption of argon gas.

17. Including automatic configuration of standard curves一键操作functionRealize fully intelligent operation, and can configure working curves at a single point, automatically dilute high concentration samples, and have up to 130 3D automatic samplers.

18.fully automaticIntelligent online optimization analysis condition functionAutomatic negative high voltage setting, automatic gas path setting, online dynamic adjustment of hollow cathode lamp, dynamic monitoring, power on self-test, automatic diagnosis, automatic fault alarm and other functions.

19. UniqueBlank cleaning monitoringfunctionMonitor the entire process of sample measurement, compare the reaction conditions before sampling and after cleaning, and automatically determine whether the flow path is clean.
20. Adopting ARM microprocessor control chip: with a 32-bit bus, the software can quickly import measurement data into the office, achieve free editing of data, and realize network resource sharing.

21. Suitable for software workstations under all Windows operating systems, with a powerful expert online assistance system.
22. It can be upgraded to a liquid chromatography atomic fluorescence spectrometer for the analysis of element forms and valence states.

Form section:

3. Modular design, the atomic fluorescence host can be used separately from the morphological analysis unit.

4. Specially designed UV digestion device, no UV light leakage, protecting the human body from damage.

5. Strictly calculate and design the flow path for morphological analysis, with a small volume behind the column to reduce peak broadening.

6. Dedicated data output interface, capable of connecting to various chromatographic workstations.

7. Gradient elution can be performed to shorten analysis time, improve separation, improve peak shape, and shorten peak time.

8. Stable column temperature control improves the separation efficiency of chromatographic columns.

9. Utilizing high UV irradiation intensity to online digest organic compounds and improve instrument analysis performance.

The data acquisition of atomic fluorescence can be output in analog signal mode and directly connected to various chromatographic workstation software for various commodities.

3. Main innovation points:

（1) Intermittent flow injection system using a combination of syringe pump and peristaltic pump (patented technology)

Adopting a single injection pump with patented technology-Intermittent flow injection technology ensures precise injection volume and small dose injection, while avoiding injection pumpsAffected by strong alkaline solutionCorrosion leakage and removal of pipeline cleaning procedures enable online cleaning, significantly improving the analysis speed of the injection pump sampling system (approximately)40Detecting a sample in seconds is half the measurement time of traditional dual injection pumps, which improves the reliability of the instrument and reduces maintenance costs.

The measurement process is as follows: the sample is accurately collected by an injection pump and stored in a sample ring; The injection pump stops, the pressure tube valve closes, the peristaltic pump rotates, the injection needle sucks up the carrier flow, and pushes the sample in the sampling ring and the reducing agent in another pipeline into the reactor and gas-liquid separator for reaction. In this step, volatile hydrides and excess hydrogen gas are formed and carried by argon gas added in front of the reaction block to the quartz furnace for atomization; There is always a current carrying and reducing agent reacting between the samples to form hydrogen gas, which enters the atomizer for combustion. This not only maintains the flame of the atomizer, but also cleans the entire pipeline, thus avoiding contamination between the samples.

（2) Pinch valve technology, no corrosion, no cross contamination, long service life, low maintenance cost

In China, pressure tube valve technology is applied to atomic fluorescence instruments, replacing directional valves or multi-channel valves with pressure tube valves, eliminating memory effects and cross contamination, reducing usage and maintenance costs. Moreover, reagents flow in the hose without touching the valve body, without dead corners in directional valves and multi-channel valves, making it easy to clean. There is no corrosion phenomenon in high acidity samples, and the pressure tube valve technology is mature and reliable, with a lifespan of hundreds of thousands of times and low usage and maintenance costs.

（3) Built in intermittent flow injection device for combination of imported infusion pump and peristaltic pump

Continuing the precise sampling characteristics of infusion pumps and inheriting the fast analysis speed of peristaltic pumps, the single measurement time is less than40 seconds, mechanical power eliminates waste liquid, eliminates cross contamination, and saves sample and reagent usage.

（4) Automatic switching between peristaltic pump injection and syringe pump injection

The advantage of peristaltic pumps lies in their fast analysis speed, with a single sample analysis not exceedingThe advantage of a 20 second infusion pump lies in its precision in injection. When it is necessary to automatically configure the standard curve or when the sample concentration exceeds the standard, the injection pump is switched to injection or dilution, and then automatically switches back to peristaltic pump injection mode to continue measurement. Improved the service life of the infusion pump and reduced the user's operating costs.

（5) Blank cleaning monitoring

Monitor the entire process of sample measurement, compare the reaction conditions before sampling and after cleaning, and automatically determine whether the flow path is clean.

（6）一键操作

Realize fully intelligent operation, and can configure the working curve at a single point, automatically dilute high concentration samples, and have up to130 bit 3D automatic sampler.