The AFS-680 is an advanced atomic fluorescence spectrometer. It offers high sensitivity and dual-channel detection. This instrument is perfect for analyzing trace and ultra-trace elements, especially hydride-forming ones. It is widely used in environmental, food, and geological testing.
Product Description
AFS-680 series reduces the excitation Angle of light source and PMT on the basis of the original model, which not only increases the intensity of the received fluorescence signal, but also reduces the background interference, so as to improve the sensitivity of the instrument. It adopts the front door of the instrument with translucent corrosion-resistant ABS magnetic absorption structure, which avoids the interference of the external air. At the same time, the chemical reaction of the test process can be observed online. Add a lane splitting signal control module on the circuit, when two channels are measured at the same time, no channel interference can be guaranteed even if the concentration of two elements measured in the sample is very different. It is especially suitable for testing departments with large sample quantity and simultaneous measurement of two channels. The innovative software and hardware design ensures the accuracy, safety and ease of use of sample analysis, and the maintenance of the instrument is simple and convenient.
Performance characteristics
Two channels and two elements can be measured at the same time, suitable for trace analysis of arsenic, mercury, selenium, tin, lead, bismuth, antimony, tellurium, germanium, cadmium, zinc, gold and other 12 elements in the sample
Hollow cathode lamp adopts new pulse modulation/constant current drive power supply mode
Intermittent flow injection device is adopted. (The sample blank is introduced alternately to avoid cross contamination of the sample and ensure the accuracy of measurement). The carrier gas flow stabilizing device can not only eliminate the bubbles generated by potassium borohydride online, but also reduce the diffusion effect between reagents and improve the stability of the instrument. Hollow cathode lamp adopts coding technology, the instrument automatically identifies the hollow cathode lamp, and can monitor the working state and service life of the hollow cathode lamp. The high efficiency gusher flow two-stage chemical gas-liquid reaction separation device makes the chemical reaction more complete and the gas-liquid separation effect better. It is especially suitable for the determination of complex samples such as rock, ore and soil
Adopt new type gas circuit design, which can control the shutdown of gas source at any time, save the argon gas consumption, and reduce the operating cost of the instrument. The instrument circuit adopts the separation of strong and weak current, the latest high concentration module, the steady flow separation gas path generation device, and the new throttle type gas path design, which can control the closing of the gas source at any time, save the argon gas consumption, and reduce the operating cost of the instrument
Use closed quartz atomizer. The instrument uses low temperature furnace atomizer
With external filter argon hydrogen flame real-time observation window, can directly observe the flame state in real time
Single channel and double channel simultaneous detection function.
Single point, two points, multiple points to establish standard curve function.
With single point, two point standard curve correction function.
With continuous flow injection and intermittent injection and other comprehensive injection mode control function.
With real-time observation test process, on-line adjustment of atomizer three-dimensional parameters.
With pressure self-balancing liquid waste removal function, no additional pump discharge.
Has small background deduction function.
Friendly software interface, recommend the best instrument test conditions, test data graphic display and playback, statistics and query, a variety of graphics, data page saving, output, backup and printing functions. The suspension measurement window increases the amount of information that can be displayed (fluorescence intensity, blank value, etc.).
Instrument self-check and outage warning protection function.
It can seamlessly butt with liquid phase and online digestion unit to realize the function of arsenic, mercury, selenium and other elements.
Interference and elimination methods
Fe、Al、Mg、Ca、K、Na、Cu、Pb、Li、Rb、Cs、Mn、W、Mo、V、Sr、Ti、Sn、Ba、Ti、Cd、Co、Ni、Cr、Ge、Ga、In does not interfere with the measurement
Hydride forming elements As, Sb, Bi are not larger than 500μg/mL generally do not interfere with the determination.
Au<5μg/mL, Ag<25μg/mL does not interfere with the measurement
When Au, Ag, Pt, Pd and other elements have interference, thiourea can be added to eliminate the interference of precious metals, reducing the concentration of KBH4 or adding iron salt can also reduce the interference of the above elements.
Hydride generation system
Using a multifunctional reaction module, the module highly integrated hydrogenation reaction, gas-liquid separation, waste liquid removal and other functions in one. The results of testing for inorganic arsenic are greatly affected by the large number of bubbles produced. Multifunctional reaction module can effectively reduce the bubble, not only simplifies the pipeline, but also reduces the fault point, directly insert and remove the loading and unloading, for the operation and maintenance of the instrument brings convenience.
Sampling System
Using the continuous flow injection method with the patented technology, the peristaltic pump injection greatly improves the test efficiency, which is three times the efficiency of the traditional injection method. It only takes 30 seconds to test a sample three times.
Technical Index Sample Atomization
Atomizer: hydrogenation shield atomizer
Carrier gas/shielding gas: Argon
Sample preparation and introduction
Steam: The new discontinuous flow without residual steam reaction system, reaction efficiency is higher
Hydride generator: The high efficiency gusher flow two-stage chemical gas-liquid reaction separation device, chemical reaction is more complete, the gas-liquid separation effect is better, especially suitable for rock, ore, soil and other complex sample determination
Peristaltic pump: 6-channel peristaltic pump, with two pressure adjustable clamp, software speed regulation
Exhaust system: With pressure self-balancing liquid waste removal function, no additional pump discharge
Optical System
Optical design: Short focal length, non-dispersive, integrated closed optical design
Dual channel: Two channels and two elements can be measured simultaneously
Light source: hollow cathode lamp using coding technology, the instrument automatically identifies the hollow cathode lamp, and can monitor the working state and service life of the hollow cathode lamp
Detector: imported photomultiplier tube
Linear range: greater than three orders of magnitude
(RSD):≤0.7％.Linear range: greater than three orders of magnitude
Element detection performance
Can switch off line/on line at will. Single/multiple Windows open at will. Single/multi-database option. Management sample correction to further improve measurement accuracy. Unlimited report formatting, measurement data can be switched to EXCEL for modification. Measurement data can be shared through LAN.
Standard Configuration
1 host computer
High strength hollow cathode lamp 2pcs
Hydride shield type atomizer 1 set
1 set of integrated expansion gas transmission chamber
Certifications
Product Qualification: European safety qualification mark CE, North American safety certification ETL, Federal Communications Commission FCC, European electrical safety certification RoHS, China Quality Certification Center CQC, China national mandatory product certification 3C
Packaging & Shipping
After carefully unpacking the contents, check the materials with the packing list (page 4) to ensure that you have received everything in good condition.
Place the instrument in a suitable location away from direct sunlight. In order to have the best performance from your instrument, keep it as far as possible from any strong magnetic or electrical fields or any electrical device that may generate high-frequency fields. Set the unit up in an area that is free of dust, corrosive gases and strong vibrations.
Remove any obstructions or materials that could hinder the flow of air under and around the instrument.
Use the appropriate power cord and plug into a grounded outlet.
Turn on your spectrophotometer. Allow it to warm up for 15 minutes before taking any readings. We suggest you then do the Calibrate System with the Search 656.1nm to set the wavelength to the deuterium lamp emission line.
Exhibition
FAQ
Q: How to pick up the best among these models?
A:Tell us your request on product and almost target price,we recommend you the most suitable model. Selling you the most expensive product is not our goal,selling you the most suitable is!
Q: How to place order or pay?
A:You can place order to us directly,we offer you PI (contract) with bank information, you pay here,we ship the product,Every process is based on PI.
Q: How to transport the product?
A:Depending on the quantity and what kind of machine you order or whether you are urgent or not to check how big it is to check the freight. By sea: More than 60kg or big quantity;Safe,cheap but slow; Usually 11-30 days to North America; 30-45 days to Middle of South America; 40-60 days to South America; 15-28 days to South Africa; 25-33 days to Europe; 30-45 days to East Europe; 35-45 days to North Europe; 28-35 days to Mediterranean countries; 28-40 days to Middle East countries; 7-20 days to Southeast Asia countries; By air to airport: Suit for big product or quantity but urgent a lot. Usually 7-10 days arrive. Some direct flight can arrive at 3-5 days. By Express delivery such as DHL,FedEx,TNT: Suit for small or not too heavy and very urgent product. Generally 5-7 days arrive.
Q: What kind of warranty will be offer?
A:Most of our product we offer 1 years warranty,except perishable part. During the warranty time,any problem,we offer after-sale service; Welcome our customer talk this with our sales directly,they will offer you more details;
Q: How’s our service?
A: Before place order,any inquiry we make sure will reply in 1 day,and offer you our suitable advice based on our professional product knowledge; After place order,we will help you follow the shipping information until you get these machines; If any problems on delivery or using,we make sure you can contact us in 1 day.
