Analysis of Beijing Puxi Universal Graphite FurnaceTAS-990GHow much does an atomic absorption spectrophotometer cost?Host 134500, automatic sampler 53570, total 188070 (excluding computer, printer, gas cylinder),Analysis of Beijing Puxi Universal Graphite FurnaceTAS-990GWhere can I buy an atomic absorption spectrophotometer?Find Chengdu Chuanhongke Biotechnology Co., Ltd. located at 139 Jiefang Road Section 1, Jinniu District, Chengdu. Chuanhongke is a special agent of Beijing Puxi General Motors in Sichuan, providing wholesale servicesBeijing Puxi General MotorsPrice of atomic absorption spectrophotometerMeets the needs of popularization, with stable performance and quality that comply with the testing standards of authoritative national metrology certification departments. Professional technical engineers provide technical training, installation, commissioning, and after-sales support for Beijing Puxi Universal Atomic Absorption Spectrophotometer throughout the process!

　　Beijing Puxi General MotorsTAS-990Gatomic absorption spectrophotometerTechnical parameters and product performance:

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

2. Technical requirements

2.1 Analysis method: Graphite furnace atomic absorption analysis;

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. Deuterium lamp, self-priming background correction capability of 1Abs ≥ 40 times Self absorption effect background correction ability ≥ 30 times at 1.8A

2.4 Optical System: Single beam lens reflector structure, fully sealed optical system. The resolution and dispersion rate of the grating fully meet the analysis requirements

2.4.1 Diffraction grating: 1800 lines/mm

2.4.2 Wavelength range/setting: 190nm-900nm/automatic peak seeking setting.

2.4.3 Wavelength accuracy: ≤± 0.25nm

2.4.4 Wavelength repeatability: ≤ 0.15nm

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

2.4.6 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%.

2.4.7 Baseline stability: ≤ 0.004Abs/30min

2.5 Element Lamp System

*2.5.1 Number of lamp sockets: 8 lamps per lamp holder

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

2.7 Graphite Furnace Analysis

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

*2.7.2 Detection limit: (Cd) 1.0 × 10-12g

2.7.3 Precision: RSD ≤ 3%

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 light controlled ultra high power method is used in the atomization stage.

2.7.6 Heating condition setting: 9 programs can be set, including ramp heating, step heating, and high-power heating.

2.7.7 Automatically set the optimal flame height and front and rear positions of the atomizer to place the instrument in optimal analysis 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 The graphite furnace power supply adopts four selection combinations of computer-controlled power heating and internal air flow.

*2.7.10 Protection Function: Automatic safety interlock function, the instrument is equipped with a flame monitor, which automatically shuts off the acetylene flow when an unexpected flame goes out; Abnormal pressure monitor: constantly monitor changes in air pressure, automatically shut off acetylene gas in case of abnormalities, and safely shut down the engine; The automatic flow limiting and cleaning functions make the flame operation of the mass flow controller safer; Comprehensive graphite furnace protection measures: The instrument simultaneously monitors the protection air pressure, cooling water flow rate, and whether the graphite tube is broken. When any abnormal fluctuations occur, heating will be immediately stopped and an alarm will be triggered;

*2.8 Automatic sampler: equipped with automatic cleaning, sample dilution, and automatic addition of 1-6 types of matrix improvers (70 sample cups).

　　Analysis of Beijing Puxi Universal Graphite FurnaceTAS-990Gatomic 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 Automatic signal acquisition and processing

3.4 It can print test data and final analysis reports, and can be edited using Excel software. All data is managed in the form of a database, and an expert system database is also provided

3.5 Can automatically calculate relative standard deviation, correlation coefficient, draw standard curve, automatically calculate sample concentration and actual sample concentration

When protective measures are in effect, the software provides corresponding prompts

3.7 The software has detailed help functions that can provide users with prompts at all times

　　Beijing Puxi General MotorsTAS-990Gatomic 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, Mercury, Manganese, Cadmium

4.5 Platform graphite tube 10 pieces

4.6 One set of branded computer and one set of printer

4.7 Analysis of pure 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, the manufacturer should respond within 24 hours and provide timely repair services when receiving user requests for maintenance of the purchased instruments and equipment.

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.