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Description
1.Product Introduction
The LR-1452G atomic absorption spectrophotometer uses deuterium lamp background technology to provide a reliable guarantee for quantitative analysis of elements. The multi-function window design with single interface reduces the difficulty of the analyst. The graphite furnace adopts the domestic advanced GFTV visual system to realize automatic sampling.
II.Application field
Widely used in geology, metallurgy, medicine, chemical industry, petroleum, agriculture, animal husbandry, cement, printed circuit board, environmental protection, commodity inspection and other industries.
III.performance characteristics
◆ Four lights, six lights, eight lights optional (optional high-performance element lights), automatic three-dimensional switching, energy balance, multi-lamp preheating at the same time to save waiting time, with deuterium lamp background and self-priming button background function;
◆ Unique integrated design of flame atomizer and graphite furnace atomizer, automatic switching and manual switching dual mode;
◆ Instrument setting conditions automatically optimize memory function, one-key scan peak search, energy balance;
◆ Data report multi-format saving and printing output, convenient data query and comparison;
◆ The instrument software adopts single-interface multi-function window design, which makes the operation simpler, real-time monitoring data changes, supports mainstream Windows operating system, supports remote control and calibration, Chinese/English version is optional, and has comprehensive quality control (QC) function;
◆ Advanced and reliable multiple safety protection system, automatic detection, alarm, such as insufficient pressure, leakage, flameout and other abnormal conditions;
◆ Domestic advanced graphite furnace GFTV visual system, CCD camera real-time monitoring of graphite furnace atomizer, extend the service life of graphite tube;
◆ Automatic sampler system can be realized, automatic configuration of standard curve, automatic dilution, high-precision sampling;
◆ Extendable: hydride system and combined function.
Ⅴ.Technical parameter
| Optical system | |
| Wavelength range | 185nm-900nm |
| monochromator | Czerny-Turner reinforcement |
| Grating engraving density | 1800pieces /mm |
| Spectral bandwidth | Automatic switching of 0nm, 0.2nm, 0.4nm, 1.0nm and 2.0nm |
| Wavelength accuracy | ≤±0.1nm |
| Wavelength repeatability | ≤±0.025nm |
| Baseline drift | 0.003ABS/30min (static) 0.005ABS/15min (dynamic) |
| Resolving power
| Copper lamp 324.7nm wavelength, 0.2nm bandwidth, half width 0.2nm±±0.01nm |
| detector | Japan Hamamatsu photomultiplier tube |
| Element lamp stand | Turret type automatic switching light frame |
| Flame atomization system | |
| Detection limit | （Cu）0.006μg/mL |
| burner | 0.5mm×100mm all-titanium burner |
| repeatability
| RSD≤0.7% |
| atomizer | Metal sleeve high efficiency glass sprayer |
| Atomizing chamber | Corrosion-resistant all-plastic atomization chamber |
| Safety measure | With a variety of automatic safety protection functions |
| Position adjustment | The optimal height and position of flame burner are automatically set |
| Graphite furnace atomization system | |
| Detection limit (Cd) | 1.5pg |
| Precision | ≤3% |
| Heating temperature range | Room temperature ~3000℃ |
| Heating and temperature control mode | The power control mode in drying ashing stage and the optical maximum power mode in atomization stage are adopted |
| Temperature control accuracy | 1% |
| Heating rate | 2000℃/S |
| Heating condition setting | 11 steps, ramp heating, ladder heating, maximum power heating, temperature monitoring and reverse measurement system |
| Security protection | Pressure system, cooling system fault protection, power monitoring |
| Background correction | |
| Deuterium lamp background correction | ≥60 times at 1ABS |
| Self-priming background correction | ≥60 times at 1ABS |
| Data processing | |
| Measurement method | Air-acetylene flame process, graphite furnace process |
| Data processing | The linear regression method automatically fits the working curve and calculates the result automatically |
| Number of repeated measurements | 1 ~ 99 times, repeated measurement to calculate the average, automatically give the standard deviation and relative standard deviation |
| Result output | Multi-format data saving and printing |
| Communication interface | Standard RS232, USB expansion interface |
| Automatic sampler system | Optional 85-bit automatic sampler. Automatic configuration of standard curve, automatic dilution, high-precision sampling |
| Visualization system | Optional GFTV video system, graphite furnace video acquisition system |
| Function expansion | Hydride system |
