AFS-680 atomic fluorescence spectrophotometer
Product introduction
The front door of the instrument adopts translucent corrosion-resistant ABS magnetic absorption structure to avoid the interference of external air circling, while 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 the detection department with large sample size and simultaneous determination of two channels.
AFS-680 atomic fluorescence photometer is widely used in teaching and research, health and epidemic prevention, medical clinical inspection, drug inspection, food hygiene inspection, urban water supply and drainage inspection, agricultural products inspection, beverage inspection, environmental monitoring, cosmetics inspection, metallurgical sample inspection, geological survey detection and other industries. 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.
Instrument characteristics
* 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. Using high efficiency gushing flow two-stage chemical gas-liquid reaction separation device, chemical reaction is more complete, gas-liquid separation effect
AFS-680 atomic fluorescence spectrophotometer
Product features
* Single channel and double channel simultaneous detection function.
* Single point, two points, multiple points to establish standard curve function.
* Unique single point, two point standard curve correction function.
* Unique double channel independent curve correction, double channel independent dilution function.
* Automatic dilution of high concentration samples.
* Unique continuous flow injection and intermittent injection and other comprehensive injection mode control function.
* Unique real-time observation test process, on-line adjustment of atomizer three-dimensional parameter function.
* Unique pressure self-balancing liquid waste removal function, no additional pump discharge.
* Unique 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.
* Unique liquid phase and online digestion unit seamless docking to achieve arsenic, mercury, selenium and other elements of the morphometric analysis function.
Interference and elimination methods
(1) 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 and In were determined without interference.
(2) hydride forming elements As, Sb and Bi are not larger than 500μg/mL.
(3) Au< 5μg/mL Ag< Determination of 25μg/mL without interference.
(4) When Au, Ag, Pt, Pd and other elements have interference, thiourea can be added to eliminate the interference of precious metals, and KBH4 concentration can be reduced or iron salt can be added to 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.
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: Unique pressure self-balancing liquid waste removal function, no additional pump exhaust
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
Data processing system:
* 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
GB 5009.9-2014 National Standard for Food safety — Determination of total arsenic and inorganic arsenic in food
HJ 702-2014 Solid wastes — Determination of mercury, arsenic, selenium, bismuth and antimony — Microwave digestion _ atomic fluorescence method
GB 5009.17-2014 National standard for Food safety — Determination of total mercury and organic mercury in food
HJ 694-2014 Water quality — determination of mercury, arsenic, selenium, bismuth and antimony — atomic fluorescence method
Soil quality — Determination of total mercury, total arsenic and total lead — atomic fluorescence method
HJ 1133-2020 Determination of arsenic, selenium, bismuth and antimony in ambient air and exhaust particulate matter – Atomic fluorescence method
HJ 680-2013 Soil and sediment — Determination of mercury, arsenic, selenium, bismuth, antimony — Microwave digestion atomic fluorescence method
Application field
Environment (Hg, Pb, Cd, As…) Waste water, drinking water, soil, etc
Pharmaceutical (Hg, Pb, As, Se…) Active ingredients, excipients, etc
Clinical Medicine (Se, Pb, Hg, As…) Blood, urine, tissue, nails, hair, etc
Agriculture/Food Safety (As, Hg, Pb, Sb, Se…) Dairy products, meat, alcohol, feed and animal by-products, tobacco, etc
Metallurgy (Ge, Hg, Se, As, Sb, Te,Au…) Rocks and ores, steel and alloys, metals, etc
Fossilization (Hg, Pb, As, Cd, Sn, Zn…) Fuel, lubricating oil, crude oil, etc
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