Atomic Absorption Spectrometer

详情

Instrument introduction AAS***0 Series are Single Beam Atomic Absorption Spectrometers controlled and data processed by external computer and internal CPU chips. AAS***0 can be used to measure the concentration of macro, micro and trace metal elements and half-metal elements in various kinds of substances. Atomic absorption spectrometry is a technique exploiting the fact that atoms at ground state may absorb the radiation of characteristic wavelength. As is known, the atoms are usually at ground state. For each element, the amount of energy required for an atom to transit from ground state to excited state is specific, and in general, is called characteristic wavelength. The Atomic absorption spectrometry typically makes use of hollow cathode lamp as the light source to emit the characteristic wavelength of a particular element. When the light passes through the atomic vapor, it is absorbed by the vapor. The concentration of the element can then be determined through the calculation of the absorption rate. AAS***0 is provided with three reading methods Continuum, Retention and Peak Height for measuring absorbency, density and emission intensity. It has three signal modes: Atomic Absorption, Background Absorption and Background Correction Absorption, The reading time ranges from 0.5 s to *9s. AAS***0 include 8 computer controllable hollow cathode lamp holders. All working conditions of the instrument such as lamp number, lamp current, negative high voltage, working wavelength, slit, burner location, ignition/extinction and adjustment of burning ratio can be set by keyboard input. The functions of the instrument include automatic gain/ automatic zero, background correction, automatic energy balance, automatic peak location/wavelength scan, and automatic peak location on basis of the retrieval of peak values. All the readings, measurement results, calibration curves and operation conditions can be saved or printed out. Application fields Geology, minerals, metallurgy, steel, non-ferrous metals Environmental analyses: air, water quality, soil and solid wastes Petrochemical engineering, crude oil and related products, light industrial products, Food, biomedicine and health products Building materials (glass, ceramic, paints, etc) Steel and non-ferrous metals analysis Soil and solid wastes analysis Biomedicine and health products analysis Food analysis Performance characteristics C2H2 monitoring; flame measurement; all reflective, aberration corrected Fully automated instrument, total automatic operation 8 element lamps, time saved for changing lamps Gas path safety measures, safer operation USB interface allows you to operate the instrument conveniently and rapidly. **0nm grating blazed wavelength, multiplied sensitivity in the Ultraviolet zone ***0g /mm grating grooves, maximized resolution Run in Windows operating system, the powerful software enables automatic qualitative and quantitative analysis. Automatic report generation in Excel format allows you to operate the instrument and process the data easily. You operation doest get any easier with our graphical interfaces. Technical specifications Model: AAS***0 Optical system: all-reflective single-beam CT optical path Focal length of monochromator: **0mm, oil/water proof air compressor Blazed wavelength of gratings: **0nm Number of grating grooves: ***0g /mm Wavelength range: **0nm***0nm Wavelength accuracy: ±0.1nm Wavelength repeatability: ±0.1nm Spectrum bandwidth: 0.1nm, 0.2nm, 0.4nm, 0.7nm, 1.4nm Noise: 0.**5 Abs(static); 0.**6 Abs(Dynamic) Baseline drift: 0.**3 Abs/0.5h; best performance Background correction: D2 lamp + self reversal Number of the lamps: 8 Number of preload lamps: software controlled, �8 Gas path safety measures: yes Atomizer: flame atomizer Automation: lamp / slit / wavelength / gas path / ignition / burner / safety measures / C2H2 monitoring