The innovation of Hitachi ZA3000 atomic absorption spectrophotometer is endless

characteristic

Polarization Zeeman background correction method is applicable to: graphite furnace/flame/hydride generation method

Tested immediately upon startup, with a more stable baseline.

High reliability data can be obtained through polarization Zeeman background correction.

Real time calibration of dual beam dual detector

Two detectors simultaneously detect the sample beam and reference beam, and the fully real-time background correction technique obtains reliable results. And there is no mechanical switching of the optical axis, resulting in higher repeatability and stability.

new technology

Dual injection technology

The use of dual pore graphite tubes in graphite furnace analysis can effectively improve sensitivity. The dual pore graphite tube increases the contact area between the sample and the graphite tube, improves the thermal conductivity efficiency, shortens the holding time of the drying process, and allows for detection with a larger sample volume in the same analysis time, resulting in higher sensitivity and lower detection yield.

Automatic boiling detection function

It can improve the accuracy of the detection results. Automatically detect boiling and mark "P" after the measured value. Based on this, it can be confirmed whether boiling has occurred and the heating program can be corrected in a timely manner.

Automatic residual removal of graphite tube

It can effectively reduce sample residue and improve the accuracy and reproducibility of detection results.
There are two automatic methods for disability removal:
Heating "mode, specifying the maximum heating time and cooling time;
Temperature program "mode, the instrument has a built-in residual temperature program, with a maximum residual temperature of 3000 ℃.

Continuous injection function of automatic sampler

After inhaling the first reagent with an automatic injection needle, inhale the next reagent through air, and repeat the cycle to inject all samples into a C-shaped graphite tube at once.
Can effectively reduce reagent contamination; Save 40% of injection time; To obtain the same test results, a lower amount or concentration of matrix modifier is required.

Analyze examples

Flame analysis of copper, zinc, lead, nickel, and chromium in soil

Even for complex samples with high salt content such as soil decomposition fluids, they are not affected by background absorption interference from coexisting substances, resulting in higher measurement accuracy. This is thanks to Hitachi ZA3000's use of polarization Zeeman correction method to remove background.

Reference standard: Chinese Environmental Protection Standard HJ 491-2019. Determination of copper, zinc, lead, nickel, and chromium in soil and sediment by flame atomic absorption spectrophotometry

Analysis of Beryllium in Water by Graphite Furnace Method

The content of beryllium in water is extremely low, and it is susceptible to interference from alkali metals in water during measurement, which affects the accuracy of the measurement. The Hitachi ZA3000 adopts polarization Zeeman background correction method, combined with an integrated platform graphite tube, which can easily eliminate the interference of coexisting substances and achieve high-precision analysis of beryllium in water.

Reference standard: HJ/T 59-2000 Determination of Beryllium in Water Quality Graphite furnace atomic absorption spectrophotometry

System lineup

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All analysis methods use polarization Zeeman correction.

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We can provide graphite tube CII (with lower cost and higher sensitivity compared to graphite tube HR) and conventional pyrolytic graphite tube HR (7J0-8880)

Application Data