Dual channel atomic fluorescence spectrophotometer
Instrument functions:
Single channel and dual channel simultaneous detection function.
The function of establishing standard curves for single point, two-point, and multi-point.
Unique single point and two-point standard curve correction function.
Unique dual independent curve correction and dual independent dilution functions.
Automatic dilution of high concentration samples function,
Unique comprehensive injection control functions such as continuous flow injection and intermittent injection.
Unique real-time observation and testing process, with online adjustment of atomizer 3D parameters function.
The unique pressure self balancing waste liquid discharge function does not require additional pump discharge.
Unique small background deduction function.
A user-friendly software interface, recommended best instrument testing conditions, graphical display and playback of test data, statistics and queries, and various functions such as saving, outputting, backing up, and printing various graphics and data pages. Suspended measurement window, increasing the amount of information that can be displayed (fluorescence intensity, blank value, etc.).
Instrument self check and gas cut-off warning protection function.
The unique seamless docking with liquid phase and online digestion units enables the morphological analysis of elements such as arsenic, mercury, and selenium.
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, In do not interfere with the determination.
(2) Hydride elements As, Sb, and Bi that can form should not exceed 500ug/mL and generally do not interfere with the determination.
(3) Au<5ug/mL, Ag<25ug/mL do not interfere with the determination.
(4) When elements such as Au, Ag, Pt, and Pd interfere, thiourea can be added to eliminate the interference of precious metals, and reducing the concentration of KBH4 or adding iron salts can also alleviate the interference of these elements.
Hydride generation system:
Adopting a multifunctional reaction module, this module highly integrates functions such as hydrogenation reaction, gas-liquid separation, and waste liquid discharge. The large number of bubbles generated during the testing of inorganic arsenic has a significant impact on the test results. The multifunctional reaction module can effectively reduce bubbles, simplify pipelines, and reduce fault points. It can be directly inserted and removed for easy operation and maintenance of instruments.
Injection system:
AFS-680 adopts patented continuous flow injection technology and dual peristaltic pump injection, greatly improving testing efficiency, which is three times the efficiency of traditional injection methods. Testing a sample three times only takes 30 seconds.
Application field:
Atomic fluorescence spectrophotometer is widely used in teaching and 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 and other industries. Innovative software and hardware design ensures the accuracy, safety, and ease of use of sample analysis, and instrument maintenance is simple and convenient.
Agriculture
Dairy products, wine, feed, meat, tobacco and their products (As, Hg, Pb, Sb, Se)
Clinical medicine
Blood, urine, tissue, nails, hair, etc. (Pb, Hg, As, Sb, Bi, Ge, Se)
Environmental protection industry
Oil, sludge, water quality, etc. (Cd, Hg, Pb, Zn, As (II), As (IV), Sb (I), Sb (V), Se (IV), Se (VI))
Geometallurgy
Minerals, rocks, metals, etc. (Ge, Hg, Se, Sb, As, Te, Cu)
The pharmaceutical industry
Active ingredients, fillers, etc. (Hg, Pb, Se, As)
Petrochemical industry
Fuel, lubricant, crude oil (Pb, Hg, Cd, As, 5n, Zn)
Suitable for trace analysis and measurement of twelve elements including arsenic, mercury, selenium, tin, lead, bismuth, antimony, tellurium, germanium, cadmium, zinc, gold, etc. in samples, and can be upgraded to hydrogenation method.
The dual channel atomic fluorescence spectrophotometer series reduces the excitation angle between the light source and PMT on the basis of the original model, increasing the received fluorescence signal intensity and reducing background interference, thereby improving instrument sensitivity.
The front door of the instrument adopts a semi transparent and corrosion-resistant ABS magnetic suction structure, which avoids external air interference and allows for online observation of the chemical reactions during the testing process.
Adding a channel signal control module to the circuit ensures no inter channel interference even when there is a significant difference in the concentration of the two elements measured in the sample during dual channel simultaneous measurement. This is particularly suitable for detection departments with large sample sizes and dual channel simultaneous measurement.
| Sample atomization |
| Atomizer |
Hydrogenation shielded atomizer |
| Carrier gas/ shielding gas |
Argon |
| Sample preparation and introduction |
| Steam |
Adopting a new intermittent flow and residual steam generation reaction system, the reaction efficiency is higher. |
| Hydride generation |
Adopting an efficient flow type two-stage chemical gas-liquid reaction separation device, the chemical reaction is more complete and the gas-liquid separation effect is better, especially suitable for the determination of complex samples such as rocks, minerals, and soil. |
| Peristaltic pump |
6 Channel peristaltic pump with two pressure adjustable pressure pipe clamps.
Software speed regulation. |
| Exhaust system |
Unique pressure self balancing waste liquid discharge function, without the need for additional pump discharge. |
| Optical system |
| Optical design |
Short focal length, non dispersive, integrated enclosed optical design. |
| Dual channel |
Two channels and two elements can be measured simultaneously. |
| Light source |
The hollow cathode lamp adopts coding technology, and the instrument automatically recognizes the hollow cathode lamp and can monitor the working status and service life of the hollow cathode lamp. |
| Detector |
Using imported photomultiplier tubes. |
| Linear range |
Greater than three orders of magnitude. |
| Automatic sampler |
| Sample import |
Continuous flow injection method for patented technology. |
| Sample processing capability |
Testing a sample three times for data only takes 30 seconds. |
| Element detection performance |
Detection limit(DL)mg/L |
Precision(RSD) |
Linear range |
| As/Se/Pb/Bi/Sb/Te/Sn |
<0.01 |
<=0.7 |
Greater than three orders of magnitude |
| Hg/Cd |
<0.001 |
<=0.7 |
Greater than three orders of magnitude |
| Ge |
<0.05 |
<=0.7 |
Greater than three orders of magnitude |
| Zn |
<0.1 |
<=0.7 |
Greater than three orders of magnitude |
| Au |
<3.0 |
<=0.7 |
Greater than three orders of magnitude |
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