AS-5300 Three Lamp Single Graphite Furnace Atomic Absorption Spectrometer

AS-5300 Three Lamp Single Graphite Furnace Atomic Absorption Spectrometersummary:

The AS5000 series multifunctional atomic absorption spectrometer is jointly developed by multiple industry experts and professors from Tsinghua University in China. It mainly uses flame atomic absorption analysis method and has multiple functions such as flow injection hydride atomic absorption method and graphite furnace atomic absorption method. It is currently a large precision analytical instrument with more functions and higher cost-effectiveness among similar instruments at home and abroad. Professors Wu Tingzhao and Chen Lianyuan, who developed this instrument, are experts in the atomic absorption industry in China for many years and have experience in developing various types of instruments. They have combined their years of experience to improve the element testing sensitivity of the atomic absorption spectrometer to a new level. The technology has enabled the sensitivity of flame atomic absorption to reach a level of 1 μ g/ml/Cu absorbance ≥ 0.3 (sensitivity<0.015 μ g/ml/1% A). Due to the multiple application methods of this spectrometer, a new laboratory can be established with one instrument, which is suitable for China's national conditions and is very suitable for analysis and research work in various units.

The AA500 series multifunctional atomic absorption spectrometer was proposed by Professor Wu Tingzhao (the developer of China's * * atomic absorption spectrometer) and designed and developed by experts such as Professor Chen Lianyuan (the designer of Haiguang GGX-6 instrument and domestic * * Zeeman background atomic absorption spectrometer). It is a large-scale precision analytical instrument with * * * level.

1. High stability: The baseline stability of the instrument is ≤ 0.002A/30min. * * compared to other atomic absorption spectrometer manufacturers at home and abroad. Baseline stability is a basic indicator for assessing an instrument, which determines a series of operating states of the host, such as noise, sensitivity, repeatability, etc.

2. High sensitivity: The atomic absorption spectrometer produced by Beijing Hanshi Manufacturing has a sensitivity of * * * *, far exceeding the technical indicators of the same industry in China. My instrument has a sensitivity (1 μ g/ml copper Cu absorbance ≥ 0.28Abs).

3. High energy: The instrument lamp current is controlled at 3mA-5mA (8mA-12mA from other manufacturers), the spectral bandwidth is 0.2nm, and the negative high voltage is between 150V-350V to achieve full transmittance. This way, your hollow cathode lamp can be used for more than half of the time, greatly saving consumables and procurement costs.

4. USB interface: The domestic atomic absorption spectrometer is equipped with a USB interface, which is suitable for various types of computers and supporting office equipment, reflecting the forward-looking and compatibility of the instrument.

5. Multiple * * technologies: Our company has multiple * * in the manufacturing of atomic absorption spectrometers, such as high-performance hollow cathode lamps, glass high-efficiency atomizers, hydride generators, etc. The application of high-performance hollow cathode lamps has advantages such as high emission intensity, high measurement sensitivity, low detection limit, good stability, and disappearance of interference from adjacent spectral lines. The invention, production, and application of glass high-efficiency atomizers have greatly improved the sensitivity, detection limit, and stability of atomic absorption. The application of flow injection hydride generator in atomic absorption spectrometer instruments has achieved the level of sensitivity and detection limit of hydride atomic absorption method, with measurement efficiency *, and can partially replace atomic fluorescence spectrophotometer. Our * * products account for over 90% of the original suction * in the country.

6. Technology *, stability, and durability: Our company's instruments are among the few atomic absorption instruments in the same category that dare to run the baseline at large-scale instrument exhibitions and fairs in recent years. During the exhibition, the road conditions were extremely bumpy, and the car could be immediately turned on for testing. For atomic absorption spectroscopy instruments, this stability is very rare among similar instruments.

7. Humanized information processing software: Our instrument data processing software was developed by Deng Bo, a theoretical expert in the field of atomic absorption analysis in China and a professor at Tsinghua University. It integrates new achievements in data processing at home and abroad, combined with practical experience in the field of atomic absorption spectroscopy in China, to provide reliable data processing results. The designed software operation is both convenient, fast, and efficient, making it a masterpiece in atomic absorption software.

8. Integrated design of graphite furnace system and host: The automatic switching between graphite furnace system and flame atomizer (HS6 type) makes it very simple and fast to switch from the system to sample testing. Greatly saves analysis time. And an automatic sampler can be optionally selected.

1. Atomic absorption flame method:

Atomic absorption flame method (air acetylene) can detect elements up to PPM level.

Sodium (Na), potassium (K), magnesium (Mg), calcium (Ca), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), platinum (Pt), gold (Au), copper (Cu), silver (Ag), zinc (Zn), cadmium (Cd), lead (Pb), bismuth (Bi), etc.

2. Atomic absorption hydride method:

Atomic absorption hydride generation method can be used for trace detection of low melting point elements (PPb level). Measurement: Arsenic (As), Selenium (Se), Antimony (Sb), Bismuth (Bi), Lead (Pb), Tin (Sn), Tellurium (Te), Germanium (Ge), Mercury (Hg), etc.

3. Atomic absorption graphite furnace method:

The element detected by atomic absorption graphite furnace method has a small injection volume and high sensitivity (PPb level).

Silver (Ag), aluminum (Al), arsenic (As), gold (Au), barium (Ba), beryllium (Be), bismuth (Bi), calcium (Ca), cadmium (Cd), cerium (Ce), cobalt (Co), cesium (Cs), copper (Cu), dysprosium (Dy), erbium (Er), europium (Eu), iron (Fe), gallium (Ga), holmium (Ho), indium (In), potassium (K), lanthanum (La), lithium (Li), magnesium (Mg), manganese (Mn), molybdenum (Mo), sodium (Na), nickel (Ni), platinum (Pt), osmium Os, Pb, Pd, Pr, Hf, Rb, Ph, Ru, Sb, Sc, Se, Sm, Sn, Zr, Te, Ti, V, Zn, Si, etc.

AS-5300 Three Lamp Single Graphite Furnace Atomic Absorption Spectrometerparameter

1. Working conditions

1.1 Power Requirements: 220V (+5%~-10%), 50/60 Hz; 5000VA。

1.2 Environmental temperature:+15 ℃ to+35 ℃.

1.3 Relative humidity: 20-80%.

2. Technical indicators

2.1 Spectral system

2.1.1 Grating lines: 1800 lines/mm.

2.1.2 Wavelength range: 190-900nm.

2.1.3 Spectral bandwidth: automatically adjustable in five levels: 0, 0.2, 0.4, 1.0, and 2.0nm.

2.1.4 Wavelength accuracy: ≤ 0.15nm, wavelength repeatability: ± 0.05nm.

2.1.5 Baseline drift: Static ≤ 0.002A/30 minutes, dynamic ≤ 0.005A/30 minutes.

2.1.6 Light source: 3 light positions, manually switched.

2.1.7 High performance power supply: Built in high-performance lamp dual cathode power supply.

2.2 Graphite Furnace Atomizer

2.2.1 Characteristic quantity (Cd): 0.3 × 10-12g.

2.2.2 Detection limit (Cd): 0.2 × 10-12g.

2.2.3 Precision: RSD ≤ 2%.

2.2.4 Heating method: Vertical heating.

2.2.5 Safety protection: Water flow rate, water temperature, air pressure, poor contact of graphite tube, overcurrent and power alarm protection.

2.2.6 Heating and temperature control method: Room temperature around -3000 ℃, fully automatic temperature control up to 20 levels, furnace enrichment and concentration up to 20 times, 4 heating methods, longitudinal light control monitoring of graphite tube inner wall temperature.

2.3 Background correction: Graphite furnace: Deuterium lamp+self-priming background correction: capable of correcting 1A background.

2.4 Data Processing

2.4.1 Measurement methods: graphite furnace method, hydride method.

2.4.2 Concentration calculation method: Standard curve method (1-3 degree curve), automatic fitting, standard addition method.

2.4.3 Repeat measurement times: 1-99 times, calculate the average, provide the standard deviation and relative standard deviation.

2.4.4 Result printing: Parameter printing, data result printing, graphic printing, can export WORD and EXCEL documents.

2.4.5 Full Chinese interface, easy and convenient to operate, can achieve automatic conversion between flame atomizer and graphite furnace atomizer through software operation.

2.4.6 Communication Interface: The computer communicates with the host via USB interface.