AOX-400

High-Performance AOX / EOX Analysis for Environmental & Industrial Applications

The Nittoseiko AOX-400 is a next-generation automatic organic halogen analyzer designed for fast, precise, and environmentally responsible determination of AOX, EOX, and TOX in water, sludge, wastewater, and soil. Using advanced oxidative pyrolysis and coulometric detection, the AOX-400 quantifies organically bound halogens (Cl, Br, I) with outstanding sensitivity and operational efficiency.

Its open-top furnace design, automated gas control, and flexible sample introduction system make it uniquely capable of handling both solid AOX samples and liquid EOX samples with ease—delivering reliability for environmental labs, industrial QC, research institutions, and regulatory monitoring facilities.

⭐ Key Features & Advantages

⚡ 1. High Throughput – 30% Faster

Optimized furnace and gas-flow control enable measurements within 10 minutes, significantly improving productivity over previous models.

🔄 2. Flexible 3-Mode Sample Introduction

Easily switch between three standard injection methods:

• Column Method (extrusion injection) for AOX in water
• Shaking Method (drop frit) for AOX in sludge/sediment
• Syringe Injection for liquid EOX samples

This flexibility reduces operational complexity and supports diverse matrices.

🛠️ 3. Easy Maintenance

• Unique open-top furnace for immediate access
• Redesigned pyrolysis tube structure
• Turntable slide mechanism for smooth sample handling

Daily maintenance is simple and fast.

💡 4. Compact Footprint

With dimensions of only 46 × 42 cm, the AOX-400 fits efficiently into any laboratory workflow.

🖥️ 5. Intuitive Software

User-friendly interface with:

• Navigation bar
• Shortcut buttons
• Easy method setup and data management

Suitable for both routine QC operators and expert analysts.

📘 Official Methods Supported

The AOX-400 fully supports major international standard methods:

Column Method (Water Samples)

• EPA 9020A
• ISO 9562
• DIN EN 1485
  (Requires TXA-04 Adsorption Unit)

Batch Method (Sludge & Sediment)

• DIN 38414 Part 18
  (Requires SA-200 Activated Carbon Adsorption Unit)

📊 Technical Specifications

Model	Automatic Organc Halogen Analyzer AOX-400
Measuring Object	River water, Industrial wastewater, Soil
Sample forms	Solid (AOX: activated carbon adsorbed sample), Liquid (EOX: extraction solution)
Analysis method	Oxidative pyrolysis / Coulometry
Furnace temperature	150~1000 °C (Regular use: 950 °C)
Sample introduction	Introduction to the open top pyrolysis tube driven by Newton’s law AOX: Extrusion injection of activated carbon adsorbed sample (Column method) Drop frit with activated carbon adsorbed sample (Shaking method) EOX: Direct injection by syringe
Measurement range	Total organic halogen: 0.1 to 50 µg
Sample volume	AOX sample: 50 mg or less EOX sample: 200 µL or less
Measurement time	Within 10 minutes / measurement (At 2 µg sample measurement)
Number of samples	Frit: 30 samples Column: 60 samples EOX: 40 samples (Size: 2 mL vials with septum)
Gas	Using AIR-200, Air gas is not required. AOX: Air (800 mL/min) EOX: Air (100 mL/min) + Oxygen (300 mL/min)
Operation Condition	15 to 35 °C, 75%RH or less (No condensation)
Power supply	AC 100/115/230/240 V, 50/60 Hz, 960 VA
Dimensions / Weight	AOX-400 main unit: 460(W) × 420(D) × 570(H) mm, 37 kg SI-400: 190(W) × 400(D) × 410(H) mm, 7 kg AIR-200: 100(W) × 400(D) × 220(H) mm, 5 kg
Device control and data processing	PC, Printer: compatible with Windows®

🌍 Applications

The AOX-400 is ideal for:

• Monitoring of organic halogens in rivers, wastewater & industrial effluents
• Determination of AOX/EOX/TOX in soil & sludge
• Environmental contamination assessment
• Quality control in petroleum, chemical, and recycled product industries
• Ensuring regulatory compliance & environmental safety

✔ Why Choose the Nittoseiko AOX-400?

• Accurate, fast AOX/EOX analysis
• Easy to operate, maintain & integrate
• Supports international regulatory methods
• Compact design for space-efficient laboratories
• High precision with reduced environmental load

📌 For complete technical specifications, official documentation, and accessory options, please visit the official Nittoseiko AOX-400 product page.