Atomic absorption spectrophotometer ZA4 series

flameZeeman effectAAS

Overview
The ZA4000 Polarized Zeeman Atomic Absorption Spectrophotometer is engineered for quantitative determination of metallic elements in diverse matrices. It uses a permanent-magnet polarized Zeeman background correction and a dual-detector architecture to deliver high sensitivity, accurate background correction across UV–visible ranges, and reduced spectral interference. The system supports both flame and graphite furnace techniques and integrates optional hydride generation and advanced acquisition modes for demanding industrial analyses.

Key Features

• Polarized Zeeman background correction with permanent magnet for stable baseline and broad resistance to spectral interferences.
• Background correction effective across UV and visible wavelengths, including elements not correctable by D2 lamp (e.g., Na, K).
• Dual-detector system to enhance sensitivity and measurement reproducibility.
• Rapid sequential flame analysis available in ZA4800 family: fast sequential measurement of up to 12 elements for high-throughput multi-element flame workflows.
• Graphite furnace analysis capability (ZA4000; ZA4700 also supports graphite furnace) for trace-level quantification.
• Automatic bumping detection in graphite furnace mode (ZA4000 and ZA4700): continuous signal monitoring through drying, ashing and atomization stages to detect bumping and evaluate analyte loss by volatilization.
• Hydride generation option for highly sensitive determination of hydride-forming elements (e.g., As, Se).
• Wizard-based intuitive software with voice prompts for method setup and measurement timing to streamline operator workflow.

Analysis Examples

• Environmental: industrial wastewater, river water, seawater, soil, drinking water.
• Food: rice and cereals, dairy products, beverages, food additives and seasonings.
• Agriculture: fertilizers, animal feed.
• Metals: steel, non-ferrous alloys, rare earths, plating baths (e.g., Cu in Ni plating solutions).
• Materials: batteries, plastics, cellulose materials, bottle leachates and other industrial materials.

Line up
Column headers: | ZA4000 | ZA4800 | ZA4300 | ZA4700
Flame Analysis | ○ | ○ | ○ |
Rapid sequential Flame Analysis | | ○ | |
Graphite Furnace Analysis | ○ | | | ○
Note: Polarized Zeeman correction is employed for all analysis modes.

Caractéristiques / spécifications techniques

• Background correction method: Polarized Zeeman correction (permanent magnet).
• Detection modes: Flame analysis and Graphite furnace analysis (ZA4000 supports both).
• Rapid sequential measurement: Implemented in ZA4800 (up to 12 elements sequentially in flame mode).
• Automatic bumping detection: Monitors signal throughout graphite furnace heating stages to detect bumping and volatilization-related analyte loss.
• Hydride generation: Optional system for sensitive analysis of hydride-forming elements (e.g., As, Se).
• Software: Wizard-based method creation with voice guidance for operation and timing.
• Dual-detector design to improve sensitivity and reproducibility.
• Applicable fields: Environmental, Food, Agriculture, Metals, Materials.