Atomic Absorption Spectrophotometers

Overview 

The Z-2000 atomic absorption spectrometer has an automated eight lamp self-aligning lamp turret. Because of its excellent light throughput, electrodeless discharge lamps are never needed. Both flame and furnace atomizers are factory-aligned and permanently mounted. Only flame height is adjustable.

Left is a schematic design of the Z-2000 optics. With two photomultiplier tubes and fixed magnets, total signal and background only signal can be acquired simultaneously eliminating flicker noise and transient signal errors.

With its built-in autosampler, re-alignment of the furnace and autosampler are eliminated. Access to the cuvette is never impeded by the autosampler location. Software positions the syringe probe over the injection port for alignment. During analysis the diameter of the cuvette is compensated automatically.

Software Overview

The Z-Series spectrometers are fully automated and computer-controlled through modern Windows™ XP operating software. The Z-series spectrometers are programmed to test all interlocks and automatically optimize conditions for methods of up to 12 elements. An optional 21 CFR 11 package is available providing controlled access, programmable permission levels, audit trail, electronic signatures, protected operation and more.Icons appear on the left of all displays that provide single keystroke access to method development, analysis, data review and reporting, and diagnostic operations. At the top of the display, icons specific for each operation simplify frequently run tasks.

Method Development
The method development display is accessed by clicking on the Methods icon. Icons provided for method development specify the atomizer, elements of interest, spectrometer conditions for each analyte, atomizer parameters, calibration selection, analysis sequence, autosampler parameters, reporting and quality control. Changing atomizers requires only a single mouse click to complete. Clicking on the Verify button will load the method, setup the instrument parameters and open the Monitor window for analysis.

Super AAS with Zeeman Backgorund Correction Method

Saat ini banyak sekali bermunculan produk-produk AAS di dunia, Hitachi, sebagai produsen instrumen laboratorium ternama secara konsisten menawarkan produk-produk berkwalitas dan berteknologi tinggi. Sejak tahun 1973 Hitachi telah mengeluarkan AAS dengan background correction Zeeman yang terbukti handal untuk memperbaiki background. Dengan Metode ini rasio dari sinyal-noise (S/N Ratio) semakin tinggi, sehingga didapatkan sinyal yang kuat dan noise yang rendah.

         Z-2300                         Z-2700                              Z-2000