TOX-300

The 5th Generation of Our TOX Analyzers – Robust, Sustainability, Flexible, Reliable

The microcoulometric measuring system TOX-300 is used in many laboratories for the changing requirements in the field of environmentaland product analysis for the determination of AOX, EOX, POX as well as total chlorine and total sulfur. It is the perfectly flexible system for both small laboratories and highlevels of automation.

The furnace: The TOX-300 has a horizontal furnace and requires argon and oxygen for the combustion of the samples and as a carrier gas. The samples are transferred to the furnace by means of boats under controlled conditions.

Maximum flexibility for sample task: Differentsamplers for solid and/or liquid as well as gaseous samples are available for the TOX-300in order to optimally adapt the systemto all requirements. Semi-automatically with a simple vessel feed, in combination with solid/liquidautosampler or alternatively equipped with gas injector, samples in any physical state can be analyzed semi- or fully automatically for total chlorine or sulfur.

• ABC-210: Semi-automatic sampler for solid, viscous and liquid samples
• ASC-250L: Fully automatic sampler for liquidsn
• ASC-240S: Fully automatic sampler for solids (boats)
• ASC-270LS: Fully automatic sampler for solids and liquids (boat + syringe injection)
• GI-210: Sample feed for gases and pre-evaporated LPG by syringe

Detection: For the final measurement, a microcoulometric cell is used that has cross-compatibility with all previous models of the last 40 years. Many glass parts of previous systems can also be reused.  There is cross-compatibility with other device series as well as  their  sample preparation modules. This is how sustainability works! No unnecessary modification of reliable, robust and proven parts. Everyone benefits from this.

Simple and robust routine: The easy accessibility and direct visual control of all relevant system components makes it a robust partner for routine analysis. Compliant with DIN EN ISO and ASTM. As usual, the software is easy to learn and offers all the functions needed in everyday life.

Figure 1: TOX-300 (Product Variants)

Key features

• Combination of AOX/EOX/POX and total chlorine determination on one system without conversion
• High measurement quality due to process-controlled combustion and titration process
• Optimized sensitivity and system blindness values
• Easy accessibility and direct visual control of all relevant system components
• Robust and sustainable
• Compliant with DIN EN ISO and ASTM
• Special QC functions and reports

Parameters / Elements

• AOX, EOX,  POX
• Total chlorine
• Total sulfur (coulometric)

Measurement method

• Sample task by boat; Gas sample delivery via carrier gas flow
• Sample combustion in argon/oxygen mixture
• Gas drying
• Potentiometric titration
• Neutralization of acid exhaust gases (optional)
• Evaluation via specific control software

Industries and branches

• Chemistry
• Energy
• Environment
• Petrochemistry
• Waste and recycling

Use and applications

• Measurement of AOX in water, wastewater, soils and sewage sludge
• Measurement of EOX in water, wastewater, soils and sewage sludge
• Measurement of POX in waters
• Determination of total chlorine in petrochemical samples
• Determination of total chlorine in coal
• Determination of total chlorine or sulphur in solvents
• Determination of total chlorine or sulphur in solids
• Determination of total chlorine or sulphur in waste samples

Standard methods

The TOX-300 is fully compliant with all relevant standard procedures for AOX/EOX, including:

ISO 9562, DIN EN 1485, DIN 38409-22, DIN 38409-8, DIN 38409-H14, DIN 38414-17, DIN 38414-18, DIN 51400-7, DIN EN 14077, DIN 38409-32, ASTM D3120, ASTM D3246, ASTM D3961, ASTM D4744, ASTM D5808, ASTM D6721, ASTM D7457, EPA 1650B, EPA 9020B, EPA 9021, EPA 9023, ISO 11480, JIS K2541, OENORM M 6614

Product details

Specifications

• Method: Oxidative pyrolysis in the quartz glass tube and coulometric titration
• Horizontal furnace
• Titration: Coulometry with silver electrode
• Detection: potentiometric titration control
• Measuring range 0,05-50 μg (Cl)
• Reproducibility CV < 3 % at 10 μg Cl
• Analysis time 8-20 min
• Gas supply: O2 99.7%; Ar 99.98%

Software and use

Application-specific software – tailored to the requirements of the parameters AOX, EOX, POX and total chlorine (TCl). All important information for the analysis such as device status, sample table and results visible at a glance. Includes standby and QC functions.

Figure 2:  TOX-300 Software

Accessories

Optional accessories:

• AOX enrichment: enrichment30, 5-channel AD module
• Gas injector
• Solid-state car samplers
• Liquid car sampler
• Ship feed