manufacturer :       Perkin Elmer

model :                   AAnalyst 800

annotation :           Dokumente engl .

Technical data

Principle

Atomic absorption spectrometer.

Computer controlled, using a special application program running under a graphical user interface.

Real-time double-beam, all-reflecting optical system (single-path for

furnace operation).

Front-surfaced optics protected by a silica coating.

AC modulated spectral line sources.

Monochromator

Littrow configuration grating monochromator .

Grating:                        ruled area:                  64 mm x 72 mm, 1800 lines/mm

blaze wavelengths:    236 nm and 597 nm

Focal length:               267 mm

Slit widths                   0.2, 0.7 and 2.0 nm

Wavelength range:     190–870 nm

Reciprocal linear

dispersion :                  1.6 nm/mm (nominal)

Detector

Segmented discrete solid-state detector with CMOS charge amplifier array; software-controlled automatic gain control (AGC).

Lamps

Line radiation sources. Positions for up to 8 lamps in lamp compartment.

Single- and multi-element hollow cathode lamps ( HCLs ) and up to 4 electrodeless discharge lamps ( EDLs ) can be used.

Background correction

Continuum source (deuterium lamp) for the flame technique.

Inverse longitudinal Zeeman effect for the graphite furnace technique.

Atomizers

Flame atomization: Premix burner system with pneumatic nebulizer and interchangeable burner heads; automatic changeover between air/acetylene and nitrous oxide/acetylene flames.

Electrothermal atomization: Transversely-heated graphite furnace incorporating an electromagnet for longitudinal Zeeman-effect background correction.

Signal handling

Time average, peak average, peak height, peak area.

Measurement ranges:

absorbance :               –0.5 to 2.000

concentration :            0.00001 to 9999 concentration units

expansion factor:        0.01 to 100

read time:                   1 to 60 s

read delay:                  0 to 60 s

Calibration

Automatic zeroing, resloping , and recalibration.

Calibration/recalibration using up to 15 calibration solutions (‘standards’).

Calibration coefficients determined by a least squares procedure.

Analytical curve technique:

• Linear with zero or non-zero intercept.
• Non-linear, 2-coefficient, or 3-coefficient, zero or non-zero intercept.

Analyte addition technique:

• Zero or non-zero intercept.
• Additions calibrate (zero intercept).

Computer (minimum requirement)

PC with Intel Pentium processor, 16 MB RAM, CD-ROM drive.

Hard disk space: 30 MB minimum free for AA WinLab , Database and GPIB software, additional space required for storing results and methods.

Microsoft Windows 95 operating system.

Perkin Elmer offers a suitable PC for controlling the spectrometer system.

Application program

Special application program: AA WinLab .

Online help function.

Hard disk or floppy storage of measurement data, signals, and completed analytical methods.

Special Reporter, Reformatter , and Library Manager applications for generating data reports and reformatting data for export to other data handling programs.

Graphics

High resolution display of the signals.

Simultaneous display of the corrected analyte signal and the background signal.

Calibration curve display.

Storage and recall of transient absorbance signals.

Hard copy printout of screen graphics on an associated printer.

Power requirements

230 V single-phase, 50 Hz, power consumption 5000 VA,

-or-

240 V single-phase, 60 Hz, power consumption 5000 VA

Electrical protection

As defined in EN 61010-1-1993 (IEC 1010-1):

Insulation: Class I

Insulation category (overvoltage category): II

Pollution degree: 2

Safety standards

As defined in EN 61010-1-1993 (IEC 1010-1: 1990 + A1 + A2) and EN 61010-2-061:1996.

Compliant to the requirements of Canadian Standards Association (CSA) standards CAN/CSA-C22.2 No. 1010.1-92, Amendment 1 (1992), 2 (1995), and CAN/CSA 61010-2-061 (1995); File No. LR 45111.

Compliant to UL 3101-1 1993 and UL 3111-1 1994.

Certificate of Approval and GS mark from the LGA Bavaria, FRG, Institute of Equipment Safety Testing and Certification.

EMC standards

As defined in EN 61326-1:1997.

Environmental requirements

Ambient temperature: +15 °C to +35 °C,

20–80% relative humidity; non-condensing

Dimensions

Width:                         1095 mm        with handles:              1220 mm

Height:                655 mm        with door open:              865 mm

Depth:                700 mm        with handles:                 770 mm

with autosampler:      1040 mm

Mass (weight)

187 kg

Spectrometer alone, not including the computer, autosampler, and cooling

system .