AOX sample preparation modules

Your advantages

3 modules available: AOX enrichment30, 5-channel Ad module and SA-200 to suit your requirements

Standard-compliant mode of operation: by dispensing with peristaltic pumps and valves in the sample path, the sample is passed over the column at 3 ml per minute and particles cannot become trapped in the valve or be carried over into the next sample

For different parameters: for AOX as well as AOF, AOCl, AOBr and AOI for subsequent determination using combustion ion chromotography (c-IC)

Compliance with standard norms: Full conformity to EN ISO 9562 & LAWA P5 leaflet, DIN 38409 and DIN 38414

Resource protection

Low follow-up costs: the parts are very durable thanks to high-quality materials.

Durability & minimal use of resources: thanks to the robust design, there is less wear and tear and parts rarely need to be replaced

Easy handling

Possible samples: Water, waste water, sewage sludge

Concentration: as substances are usually present in very low concentrations and are otherwise undetectable

Flexible software: for installation on your own PC and option to correct input errors

Easy cleaning and maintenance: thanks to robust design

A wide variety of applications: for example for

Contract laboratories
Sewage treatment plants
Industrial companies that discharge (waste) water

Our service for you

Comprehensive training: we take over the induction of your employees

Also there for you after the purchase: many questions only arise during work. We are there for you for all questions about the device and your measurements

Application

Simple and inexpensive sample enrichment or filtration

For sample preparation for AOX analysis(AOX-400), different modules with standard-compliant operation are available depending on the method and number of samples, which can also be used for automatic sample preparation for AOF, AOCl, AOBr and AOI for subsequent determination using c-IC (AQF-5000).

AOX enrichment module30:

Automates sample preparation according to the column method for 30 samples
Available with SPE variant (Solid Phase Extraction) or variant with two channels working in parallel
Automated, upstream SPE can clean salt-contaminated samples
No supervision required during running time, can also run overnight
Column method
for water, waste water
with washing station for self-cleaning

5-channel AD module:

Parallel, semi-automatic sample preparation
5 samples per hour
works with syringe pumps (instead of peristaltic pumps) and thus complies with the standardized enrichment rates of 3 ml per minute even with back pressure
Use for individual samples, small series or for parallel processing of large series
Freely selectable volumes for enrichment and rinsing
Column method
for water, waste water

SA-200 module:

Simple and robust filtration station for sample processing using the shaking method
filters shaking AOX samples onto ceramic carriers, which can be measured directly in the AOX-400
Ceramic carriers have a long service life
High cost savings and simplified handling thanks to ceramic filters
for sewage sludge

Who needs sample preparation modules?

Companies that want to carry out AOX or AOF measurements. The substances to be analyzed are usually contained in the sample in very low concentrations and cannot then be measured. Sample preparation is used to carry out a so-called concentration.

Is there a safety risk when handling samples?

Yes, there is a risk when working with wastewater, sewage sludge and soil samples, as it is never known exactly what substances and materials they contain.
However, the finished samples on the carbon columns are virtually harmless to the user. Nothing outgasses from the samples as the hazardous substances are bound in the water. Nevertheless, always wear personal protective equipment.

Standard methods

The enrichments are fully compliant with all relevant standard procedures for AOX, AOF, AOI, AOBr and AOI, among others:

EN ISO 9562 & LAWA P5 leaflet
DIN 38409
DIN 38414

Measuring method

Messverfahren

Säulenmethode: Anreicherung der Proben auf Aktivkohlesäulen
SPE-Methode: Anreicherung, Waschen und Elution über SPE-Kartuschen, anschließende Anreicherung an Aktivkohlesäulen
Schüttelmethode: Filtration der mit Aktivkohle geschüttelten Proben über Keramikfritten

Verfahren der Module

Die AOXAnreichunger30 und das 5-Kanal-AD-Modul wenden die Säulenmethode an, das SA-200 Modul wendet die Schüttelmethode an.

Funktion Säulenmethode

Die Probe wird angesaugt und auf die Kohle transferiert und anschließend mit Nitratlösung gewaschen.

Funktion Schüttelmethode

Filtration der mit Aktivkohle geschüttelten Proben über Keramikfritten.

Parameter / Elemente

AOX, AOF, AOCl, AOI, AOBr

Details

Modul AOX-Anreicherung30

Automatische AOX-Anreicherung an Aktivkohle nach gesetzlich vorgeschriebener EN ISO 9562 bzw. DIN 38409:

Homogenisierung feststoffhaltiger Proben
Adsorption der Probe an Aktivkohle
Waschen mit Nitratwaschlösung

Die einfache Konstruktion mit wenigen mechanischen Teilen ohne komplizierte Ventiltechnik erlaubt eine hohe Betriebsbereitschaft und Zuverlässigkeit. Die streng kontaminationsfreie Probenaufgabe ist für die präzise AOX-Analytik von großer Bedeutung. Die AOX-Anreicherung30 verhindert den Kontakt der Probe zu Ventil oder Spritze. Dadurch sinkt die Wahrscheinlichkeit einer Verschleppung oder Querkontamination. Die AOX-Anreichung30 reinigt sich durch variable Waschvolumina mit Nitratwaschlösung nach jeder Probe (2,5 bis 50 ml) selbst.

Mit einem zweiten Anreicherungskanal kann die Geschwindigkeit der Probenbearbeitung verdoppelt werden.

Auch für Proben mit hohen Salzgehalten kann die AOX-Anreicherung30 automatisiert werden. Gegenüber der manuellen Abwicklung spart dies erheblich Zeit und erhöht die Produktivität Ihres Labors. Die AOX-Anreicherung30-SPE erledigt die AOX-Anreicherung an Aktivkohle für Wässer mit hohen Gehalten anorganischer Halogene (> 1 bzw. 5 g/l) nach DIN ISO 9562 / DIN 38409-H22. Auch dieses System ist mit zwei parallel arbeitenden Anreicherungskanälen verfügbar.

Folgende Schritte werden automatisiert:

Konditionierung der SPE-Kartusche mit Methanol und Wasser
Adsorption der AOX-Proben mit hohen Salzgehalten an Styrol-Divinylbenzol-Harz
Waschen der Kartusche mit Nitratwaschlösung
Elution mit Methanol und Wasser
Adsorption an Aktivkohlesäulen
Waschen mit Nitratwaschlösung

Eckdaten des AOX-Anreicherung30 Moduls

DIN und EN-konforme Arbeitsweise
Analyse von Wässern, Abwässern und Klärschlamm
Querkontaminationsfreies Probenhandling
Kostengünstige Verbrauchsmaterialien / niedrige Betriebskosten
Robuste, platzsparende Konstruktion mit wenigen mechanischen Teilen ohne komplizierte Ventiltechnik
Streng sequenzielle Probenabarbeitung mit kontaminationsfreier Probenaufgabe
Proben- und Waschvolumen frei wählbar (25 bis 2500 ml)
Große Probenanzahl (bis zu 30 Proben)
Memory-Funktion zur Absicherung der Messung bei Stromausfall
Anreicherungsvolumen 5 bis 100 ml (voreingestellt 100 ml)

Accessories

Adapter für Säulenhalterung
AOX Aktivkohlesäulen
AOX-400
AOF-5000

FAQ

For which companies is sample preparation suitable?

For companies that want to carry out AOX or AOF measurements. The substances to be analyzed are usually contained in the sample in very low concentrations and cannot then be measured. Sample preparation is used for so-called concentration.

For which sum parameters can I use the enrichment modules?

For AOX, AOF, AOCl, AOI and AOBr.

Can I view and test the module before I buy it?

Of course, we will be happy to come to you and show you the module so that you can get to know the technology.

I have never worked with the device before. How can I learn how to work with the sample preparation modules?

Once your module has been installed, our service team will be available to provide you with detailed product training. Most questions will arise as you work, so we will also be able to help you with any questions that arise at a later date – at your premises or flexibly via an online meeting.

Is any additional material required?

Yes, you need activated carbon columns and an analyzer (e.g. AOX-400 or AQF-5000).

What methods of sample enrichment are available?

Our modules work either with the column method or with the shaking method.

How are the modules controlled?

The modules are controlled via software that you can simply install on your existing PC.

Which standard does the sample preparation comply with?

AOX = EN ISO 9562 & LAWA P5 leaflet

EOX = DIN 38409, DIN 38414

What is special about the a1 modules?

We do not use peristaltic pumps, which make it very difficult to work in compliance with the standard. According to the standard, the water should be passed over the column at a rate of 3 ml per minute. Due to the particle load of the samples, more powerful pumps are required to deliver the required volume flow. Another advantage is that we have no valves in the sample path. Particles can therefore not get stuck in the valve or be carried over into the next sample. Ceramic filters instead of the polycarbonate filters often used also make handling much easier and you save costs as the ceramic filters are much more durable.

Analysis systems

Containment systems

PFAS measurement with AQF-5000

AOX sample preparation modules

Enrichment modules and rapid filtration

Your advantages

Resource protection

Easy handling

Our service for you

Application

Measuring method

Details

Accessories

FAQ

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