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Instrument Database:
Buck Scientific - 205 AAS
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| Year of introduction |
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| Status |
available |
| Company |
Buck Scientific
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| Categories |
Spectrometer ( Atom. ): AAS: Flame
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The Buck Scientific 205 AAS uses a unique burner system to get more sample to the flame, which results in more signal and better sensitivity. We use an impact bead nebulizer to get an efficient generation of a fine aerosol of sample solution. The short path spray chamber permits difficult solutions containing organics or high dissolved solids to be aspirated with superb precision and minimal instabilities. To take advantage of this enhanced signal, we designed an optical layout that provides the highest throughput of any commercially available spectrophotometer. Our very simple straight line optical path uses a monochromator with a single reflector mirror. This cuts down on the amount of light loss often associated with models having 10 or more mirrors. Because of this the Buck 205 AAS can detect far-UV elements, such as arsenic and selenium, with ten times greater sensitivity.
- Internal microprocessor and software can identify samples, perform statistical analysis and graphically display calibration curves.
- Dual lamp power, one for warm up
- High throughput "Stable Beam" optical system
- Modulated HCL power supply to cancel DC emission from flame
- Digital readout for absorbance, emission, direct concentration, lamp currents and PMT voltage
- Autozero, curve correction, integration and high gain damping features
- Bandpass resolution from 0.2 - 0.7 - 2.0nm
- Burner safety interlock system for nitrous oxide/acetylene flame operation
- High sensitivity detection using quartz PMT detector
- Analog and digital output for chart recorders/PC data systems
- Compact design saves bench space
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| Specifications |
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Wavelength
Range: |
190
to 900nm |
Burner/
Nebulizer: |
Polypropylene
spray chamber with premix burner and
high
efficiency adjustable nebulizers (SS or
Pt/Ru), Titanium burner heads for Air/Acetylene,
Argon/Hydrogen and nitrous Oxide/Acetylene
operation |
| Accuracy: |
±0.2nm |
Integration: |
User
selectable times from 0.5 to 10 seconds
for Stabilized readings. |
| Precision: |
±0.1nm |
Calibration: |
Automatic,
weighted least squares fit to 1st, 2nd,
3rd, or 4th order functions, up to 8
points. |
| Monochromator
/ Optics: |
- 250mm
Ebert Mount
- 600
lines/mm high efficiency grating
- 0.2,
0.7, 2.0nm bandpass to cover analytical
wavelengths for use on atomic absorption
and emission measurements
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Display: |
16
line backlit liquid crystal display for
all text & graphics |
| Power
Supply: |
100-240V.A.C.
operating range, 50/60HzAC,<100 watts
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Output
Modes: |
LCD
Display, IEEE Parallel port for dot matrix
printer, RS-232 Serial Port |
| Hollow
Cathode |
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Dimensions: |
39"
x 11" x 12" |
| Lamp: |
Dual
HCL modulated power supply, 0 to 25mA peak |
Weight: |
50
lbs. (80 lbs. shipping) |
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