A3AFGatomic absorption spectrophotometerProduced by Beijing Puxi General Instrument Co., Ltd., and sold by Chengdu Chuanhongke Biotechnology Co., Ltd. in Sichuan region, providing full technical support and product after-sales serviceAtomic absorption spectrophotometer manufacturerNew supply to Sichuan regionAtomic absorption spectrophotometer model quotation Atomic absorption spectrophotometer priceProvide high-quality productsAtomic absorption spectrophotometer products.ChengduChuan HongkeLong term operation: UV visible spectrophotometer, atomic absorption spectrophotometer, atomic absorption spectrometer, atomic fluorescence spectrometer, gas chromatograph, liquid chromatograph, atomic fluorescence spectrophotometer, and other well-known domestic and foreign instrumentsatomic absorption spectrophotometer.

　　A3AFGatomic absorption spectrophotometerProfessional production and sales manufacturers:Chengdu Chuanhongke Biotechnology Co., Ltd.A3AFGatomic absorption spectrophotometercorrectChengduChuanhongke BiotechnologyLtd.One of the main promoted brand products, which has undergone market testing and is selling well nationwide!

Host 222400, graphite furnace automatic sampler 68200, total 290600 (excluding computer, printer, steel cylinder gas)

Host 222400, flame graphite furnace integrated automatic sampler 99000, total 321400 (excluding computer, printer, steel cylinder gas)

　　Beijing Puxi Universal Spectral A3AFG Atomic Absorption Spectrophotometer with Five BandsTechnical parameters and product features:

1. Working conditions: Power supply voltage 220V (± 10%), 50HZ, ambient temperature ≤ 35 ℃, relative humidity ≤ 85%

2. Technical requirements

2.1 Analysis methods: flame method and graphite furnace atomic absorption analysis;

*2.1.1 Automatic switching between flame and graphite furnace atomizer: The integrated structural design of flame atomizer and graphite furnace atomizer enables automatic switching between flame and graphite furnace atomizer.

2.2 Optical path structure: Czerny Turner type grating monochromator with aberration reduction

*2.3 Background correction: tritium lamp and self-priming dual background correction system. When the deuterium lamp has a background correction capability of 1Abs, it is ≥ 55 times, and when the self suction background correction capability is 1Abs, it is ≥ 60 times

2.4 Optical System: Single beam lens reflector structure, fully sealed optical system.

2.4.1 Diffraction grating: 1800 lines/mm

*2.4.2 Wavelength range/setting: 185nm-910nm/automatic peak seeking setting.

*2.4.3 Wavelength accuracy: ≤± 0.15nm

*2.4.4 Wavelength repeatability: ≤ 0.05nm

2.4.5 Spectral bandwidth: Five levels of automatic selection: 0.1, 0.2, 0.4, 1.0, 2.0nm

2.4.6 Spectral bandwidth shift error: ± 0.3nm

2.4.7 Edge noise:<0.02Abs

2.4.8 Edge energy:<2%

2.4.9 Resolution: ≤ 0.3nm. When the spectral bandwidth is 0.2nm, the manganese double lines at 279.8nm and 279.5nm can be separated, and the valley energy between the two spectral lines is less than 30%.

2.4.10 Baseline Stability: Static Baseline: Drift ± 0.002Abs, Noise<0.002Abs

2.4.11 Sample solution suction and spray volume and apparent atomization rate: suction and spray volume>5ml/min; Atomization rate ≥ 8%

2.4.12 Absorption error: ± 1%

2.5 Element Lamp System

*2.5.1 Number of Lamp Holders: Automatic 8 Rotating Lamp Holders

2.5.2 Lamp Position: The lamp position is automatically set and fine tuned.

2.6 Flame section

2.6.1 Combustion Head: Pre mixed all titanium combustion head

*2.6.2 Flame Atomization Mode: It has two modes: air acetylene flame and air liquefied petroleum gas flame

2.6.3 Ignition Method: Automatic Ignition

*2.6.4 Combustion condition setting: The mass flow controller automatically sets the combustion conditions; Automatically set the flame height and the front and rear positions of the atomizer to place the instrument in ideal analytical conditions

*2.6.5 Characteristic concentration: Copper ≤ 0.02ug/ml/1% (air acetylene method, air liquefied petroleum gas method)

*2.6.7 Precision: Copper ≤ 0.6% (air acetylene method) Copper<1.0% (air liquefied petroleum gas method)

*2.6.8 Detection limit: Copper ≤ 0.004ug/ml (air acetylene method, air liquefied petroleum gas method)

2.6.9 Automatic Gas Flow Setting: Automatically select the optimal combustion assistance ratio for elemental analysis.

*2.6.10 When using a deuterium lamp to fasten the background: it has the function of automatically cutting into the semi transparent and semi reflective mirror device.

2.6.11 Automatic wavelength scanning and peak searching control.

2.6.12 Automatic adjustment of negative high voltage, lamp current, two-way light balance, automatic flow control, automatic ignition, and automatic shutdown protection.

2.7 Graphite Furnace Analysis

*2.7.1 Feature Quantity: (Cd) 0.5 × 10-12g

*2,7.2 Detection limit: (Cd) 0.4 × 10-12g

2.7.3 Precision: RSD ≤ 2%

2.7.4 Heating range: Room temperature -2650 ℃

2.7.5 Heating and temperature control method: The power control method is used in the drying and ashing stage, and the maximum power control method is used in the atomization stage.

2.7.6 Heating condition settings: ramp heating, step heating, and maximum power heating.

2.7.7 Automatically set the optimal flame height and front and rear positions of the atomizer: to place the instrument in the analytical conditions.

*2.7.8 Adopting transverse heating graphite furnace technology: requires good anti-interference ability, small temperature gradient, reduced matrix effect, eliminated peak tailing, high sensitivity, short atomization time, reduced memory effect, high measurement precision, and long furnace life. The graphite tube adopts a pyrolytic coating L'VOV platform graphite tube.

*2.7.9 Safety Protection System: 1) Flame Monitor: The flame monitor constantly monitors changes in the flame. When an unexpected power outage or incorrect operation causes the flame to extinguish, the acetylene gas circuit will immediately shut down automatically and prompt an alarm. 2) Acetylene leakage alarm: 24-hour monitoring of the acetylene concentration inside the instrument and in the working environment. Once the slight leakage of acetylene exceeds the warning concentration, the acetylene gas path will automatically close and an alarm will be prompted (when the acetylene leakage reaches the explosion point, the machine cannot be turned on). 3) Reliable location recognition: equipped with combustion head installation positioning detection, drainage liquid level detection, ensuring comprehensive protection for operators during flame combustion. 4) Abnormal pressure monitor: The air pressure monitor monitors changes in air pressure and automatically shuts off acetylene if there are any abnormalities. 5) Argon pressure monitor: Ensure that the graphite circuit is not powered without argon protection. 6) Cooling water flow monitor: Ensure that the graphite furnace body does not heat up when the cooling water flow is insufficient. 7) Instant fracture protection of graphite tube: When the graphite tube suddenly fractures, the instrument automatically cuts off the power and alarms.

*2.8 Automatic sampler: The flame graphite furnace integrated automatic sampler can switch between graphite furnace and flame automatic sampler by replacing the sample tray. It has functions such as automatic cleaning, under voltage protection, level adjustment, automatic preparation of standard solutions, and automatic addition of matrix modifiers.

　　Beijing Puxi Universal A3AFG Atomic Absorption SpectrophotometerData processing:

3.1 Data input method: Computer automatic online sampling, manual offline input

3.2 Concentration Calculation Methods: Curve Fitting Method, Standard Curve Method, Standard Addition Method, Interpolation Method, Relative Standard Deviation, Correlation Coefficient

3.3 Data collection: USB communication interface, convenient for users to use

3.4 Chinese control software (2000/XP/win7), simple and convenient to operate, provides report summary display and printing functions for single element and multi-element analysis, and can also display and print element spectra, analysis work curve samples, signal curves, and analysis parameters. Quality control function, which includes the detection and post-processing of data instruments such as concentration, absorbance, standard deviation, and relative standard deviation during the analysis and testing process. Support exporting analysis data in multiple formats through electronic files.

　　Beijing Puxi Universal A3AFG Atomic Absorption Spectrophotometerto configure:

4.1 Atomic absorption spectrophotometer host 1 unit

4.2 One set of automatic sampler

4.3 One set of fully Chinese software

4.4 Elemental Lamp Copper, Manganese, Mercury, Cadmium

4.5 Platform graphite tube 10 pieces

4.6 One oil-free silent air compressor

4.7 Brand computer, one set of printer each

4.8 Analyze 1 bottle of pure acetylene and 1 bottle of argon gas source (including steel cylinder with pressure reducing valve)

5. After sales service

*5.1 The product manufacturer shall directly establish after-sales service or technical service institutions within Sichuan Province (provide a copy of the business license, name, address, contact person, and contact phone number of the after-sales service institution directly established within Sichuan Province). From the date of self acceptance, the winning bidder shall provide free technical services for the one-year warranty period of the instruments and equipment; Lifetime free software upgrade.

5.2 Develop technical service terms with clear after-sales service measures and charging standards. During the warranty period, if the manufacturer receives a request from the user to purchaseBeijing Puxi Universal A3AFG Atomic Absorption SpectrophotometerWhen repairing equipment, a response should be given within 24 hours and timely maintenance services should be provided.

During the initial installation of the instrument, the manufacturer provides free on-site training to ensure that the user can operate and use the instrument correctly. The training content includes the basic principles, operation, use, and daily maintenance of instruments and equipment, until learned.