Eight lamp Graphite furnace and Flame automatic Atomic Absorption
AA-1800E atomic absorption spectrometer (flame / graphite furnace
1.1 Power requirements: 220V (+5% ~ -10%), 50/60 Hz; 5000VA.
1.2 Environment temperature: +15 to +35 DEG C.
1.3 Relative humidity: 20 ~ 80%.
2 .Technical indicators
2.1 Optical system
2.1.1 Grating: 1800 /mm.
2.1.2 Wavelength range: 190-900nm.
2.1.3 Spectral bandwidth of 2.1.3: 0, 0.2, 0.4, 1, 2.0nm a five
speed automatic adjustable.
2.1.4 Wavelength accuracy: less than 0.15Nm wavelength
repeatability: + 0.1nm.
*2.1.5 Baseline drift: static is not more than 0.002A/30 minutes,
the dynamic is not more than 0.005A/30 minutes.
2.1.6 Light source: more than eight lights automatically switch the
turret, automatic alignment.
2.1.7 Power: double cathode power built-in high performance lamps.
2.2 Flame atomizer
2.2.1 Characteristic concentration (Cu): 0.015 g/mL/1%.
2.2.2 Detection limits of *2.2.2 (Cu): 0.002 g/mL.
2.2.3 Precision: RSD = 0.5%.
2.2.4 Combustion head: metal titanium combustion head.
2.2.5 High performance glass atomizer sprayer.
2.2.6 Atomizing chamber: explosion proof corrosion resistant
material spray chamber.
2.2.7 Control system: the automatic PC control flame / graphite
furnace automatic switch, automatic optimization and automatic
2.2.8 Safety protection: with automatic safety protection function,
anti temperingautomatic gas path protection, acetylene gas leakage
alarm, automatic shutdown system, abnormal automatic power-off.
2.3 Graphite furnace atomizer
2.3.1 Features (Cd): 0.5 x 10-12g.
2.3.2 Detection limits of (Cd): 0.4 x 10-12g.
2.3.3 Precision: RSD = 3%.
2.3.4 Heating method: vertical heating.
2.3.5 Safety protection: water flow, water temperature, air
pressure, the graphite tubebad contact, flow and power alarm
*2.3.5 Conversion mode: flame / graphite furnace automatic switch
machine, electronicmobile platform software control, without the
need to manually remove.
2.3.6 Heating temperature control mode: room temperature -3000
degrees Celsius,automatic temperature control up to 20 order, the
furnace enriched up to 20 times, 4 kinds of heating mode,
longitudinal optically monitoring the graphite tube wall
2.4 Background correction:
2.4.1 Fame: deuterium lamp + self absorption background correction:
correction of the 1A background.
2.4.2 Shi Molu: deuterium lamp + self absorption background
correction: correction of the 1A background.
2.5 Data processing
2.5.1 Measurement methods: flame method, graphite furnace method,
2.5.2 Concentration calculation method: standard curve method (1 ~
3 times curve),automatic matching, the standard addition method.
2.5.3 Repetition survey frequency: 1-99 times, calculating the
average value, standard deviation and relative standard deviations
2.5.4 Print print print print the results of parameters, data,
graphics, you can export WORD, EXCEL document.
2.5.5 Ssimple and convenient operation, and can be operated through
software, to realize the automatic conversion of flame atomizer and
a graphite furnace atomizer.
2.5.6 Communication interface: computer and host USB interface
2.6 Autosampler (optional)
The 2.6.1 sample disc 70 sample cup (2mL), 6 25mL cup for liquid
reserves, blank and matrix modifier, cleaning bottle 500mL, waste
2.6.2 According to the need can be arbitrarily specified sample cup
and the reagent cupposition, random arrangement, program setting,
can automatic analysis.
2.6.3 Automatic calibration curve: automatically from a single
standard solutionconfiguration from at least 3 different
concentrations of standard sample, directly into the graphite tube.
2.6.4 Needle minimum sample volume of 1 L 0.1 L incremental
selection, selection,sample selection (maximum 100 L when 10 L-100
selection selection analysis of Lprecision is better than 1%).
2.6.5 Automatic long-term memory into the position of the sample
needle selection,accuracy of 50 m.
2.6.6 Graphite tube hole coordinate adjusting range > + 5mm.
2.6.7 Automatic depth adjustment: the sample feeding needle depth
changes with thesample liquid automatic adjustment.
2.6.8 Automatic standard addition method, the standard sample of up
2.6.9 Cleaning method: internal and external wall while cleaning,
cleaning time andfrequency adjustable.
2.6.10 Solution was injected after the automatic start of graphite
2.7 Hydride generator (optional)
The sensitivity of 2.7.1 (As): 0.15ng/mL/1%
2.7.2 Precision RSD 3%
2.7.3 Atomizer: T type electrothermal quartz absorption tube
(corundum jacket, ensure safety)
2.7.4 Automation: only a start button, press gently to complete
sampling, occurrence,determination, cleaning of the whole process,
can communicate with host on-lineautomatic reading (host must have
2.7.5 can be applied to various readings: applicable to a variety
of readings, peak height, peak area of reading reading, continuous