brochure de la série acquray d'analyse TOC

acquray series

Enter a new world of TOC analysis and more

KEY FEATURES

• Ease of use
• LOD of 2 ppb for TOC in water
• Options for TN and TP in water
• Optional autosampler with up to 109 positions
• Best price-to-performance ratio
• Low investment costs

The acquray series is optimized to significantly simplify the daily routine operation. Clearly arranged, easily accessible system components minimize maintenance efforts. Customers can enjoy smooth analyses and confidence in their results.

A workhorse for any laboratory, the acquray series is designed for maximum robustness and minimal maintenance effort, providing industry-leading system uptime. For unattended overnight operation, optional autosampler configurations with up to 109 positions are available.

TOC by wet chemical oxidation

A strong oxidation agent, such as sodium peroxydisulfate, is added to the sample and heated up to 100 °C. The oxidizing process can be further supported by irradiation with UV light at a wavelength of 180 nm and 254 nm. The peroxydisulfate forms hydroxyl radicals that oxidize all carbon in dissolved organic matter to carbon dioxide. Carrier gas then transports the generated CO2 through an infrared detector. The peak area is converted into a TOC concentration using a simple predetermined calibration curve.

TOC, ROC and TIC in solids

With the optional solid sample combustion unit, it is possible to determine different carbon species in solids using the so-called temperature ramp method - fast and safe without acidification. This method distinguishes between Total Organic Carbon (TOC) at 400 °C, Residual Organic Carbon (ROC) at 600 °C, and Total Inorganic Carbon (TIC) at 900 °C. This provides useful information for the validation of soil, construction waste, or solid waste. For example, the amount of elemental carbon is an important parameter, as this form of carbon is not bioavailable. With its fast heating rate and precise temperature setting, the acquray series is fully compliant with the German DIN 19536 standard.

Outstanding versatility

The acquray series, with its modular concept, offers industry-leading versatility. Starting from the TOC analyzer base module, additional extra modules can be attached at any time. For increased sample throughput, an autosampler unit is available, offering several carousels for different sample vial sizes. An optional combustion furnace for solid samples can be used either for the classical TOC analysis of solids via acidification prior to combustion, or for the more advanced method via temperature ramping without acidification. Completing the package, another two unique modules are available that enable the determination of Total Nitrogen in water and Total Phosphorus in water. Thus, acquray is the world’s first UV-digestion TOC analyzer with a Total Nitrogen and/or a Total Phosphorus option (patent pending).

Made in Germany

All Elementar elemental analyzers are developed and manufactured in-house at the Elementar headquarters near Frankfurt, ensuring high-quality German engineering. High-performance components and strict quality control yield industry-leading quality and reliability. Designed for easy laboratory integration, features such as automatic weight transfer from balance or LIMS integration are readily available. Our team’s singular devotion and investment in elemental analysis guarantee a superior experience that any user will appreciate.

Water analysis has never been easier!

SAMPLE RECOVERY [%] and REL. SD

• Saccharose: 99.3, 0.26
• Benzoquinone: 99.6, 0.65
• Barbituric Acid: 102.6, 1.58
• Dodecyl Sulphate: 95.6, 0.65
• Albumin: 97.2, 0.98
• Humic Acid: 97.2, 1.67

The alternative for COD
The analysis of the chemical oxygen demand (COD) is a commonly used method for the indirect measurement of organic compounds in water. Hazardous chemicals, long analysis time, and the lack of automation explain the trend towards the TOC method in recent years. Moreover, production and sales of potassium dichromate, a prerequisite for the COD method, will be banned within the European Union by 2017, making it likely that a total displacement of COD will proceed in the upcoming years. With this in mind, the acquray series was developed to provide an attractive alternative to COD with its outstanding ease of use and fully automated, fast analysis. Furthermore, the acquray series software is capable of COD/TOC correlation factors for flexible reporting.

In accordance with standards
The acquray series operates in full compliance with all relevant national and international norms or standards such as DIN 19539, DIN 15936, and DIN 13137.

Ideal solution for:

• Environmental laboratories
• Wastewater treatment plants
• Academic research groups
• Quality control laboratories

• Ultra-pure water
• Drinking water
• Surface water
• Groundwater
• Wastewater effluent
• Soil

Elementargroup – your partner for elemental analysis
Elementargroup is the world leader in high-performance analysis of organic elements. Continuous innovation, creative solutions, and comprehensive support form the foundation of the Elementar and Isoprime brands, ensuring our products continue to advance science across agriculture, chemical, environmental, energy, materials, and forensics markets in more than 80 countries.
Elementar Analysensysteme GmbH | Donaustraße 7 · 63452 Hanau (Germany)
Phone: +49 (0) 6181 9100-0 | info@elementar.de | www.elementar.de