Oi Aurora 1030W

Total Organic Carbon (TOC) analyser – The original and best performing wet Persulfate TOC analyser 

The versatile design of the Aurora 1030W ensures efficient processing of aqueous samples for analysis of total organic carbon (TOC), total inorganic carbon (TIC), and non-purgeable organic carbon (NPOC) content.

The recognised method of measuring TOC for water analysis

The 1030 Wet Oxidation Total Organic Carbon Analyser uses heated persulfate oxidation technology to determine organic contamination in aqueous samples at levels as low as 2 ppb up to 30,000 ppm.

Virtually all organic compounds dissolved in water can be oxidized by heated sodium persulfate (Na2S208). Concentrated solutions (1 or 1.5 M) can effectively oxidize organic matter present in the form of colloids, macromolecules, and suspended solids

The reaction chamber of the Aurora 1030W is thoroughly rinsed between analyses to eliminate residue from the previous sample. This ensures the Aurora 1030W maintains the low system background necessary for high sensitivity TOC measurements. This contrasts with combustion TOC analyzers in which residual salts accumulate on catalyst surfaces, degrading oxidation efficiency and causing higher blanks and background contamination.

The analyser comes with the option of an 88-position rotary autosampler which sits neatly under the 1030W saving valuable bench space whilst offering robust and reliable, high capacity throughput. It comes with an optional second oxidation chamber supporting concurrent sample processing. In addition, the analyser is capable of operating in a stand-alone or networked configuration and offers the option to use vendor-supplied software on a PC to have remote access and control via a secure network.

Key features

  • Supports US-EPA, Standard methods, ASTM, DIN/ISO/CEN, USP and EU Methods
  • Capable of operating in a stand-alone or networked configuration
  • Software to provide 21CFR Part 11 Compliance
  • Can analyse up to 300 samples per 24-hour period

Industries and branches



Use and applications

The heated persulfate oxidation technique has been approved and adopted in numerous regulatory compliance methods, standards, and norms for water quality testing.

Standard Method 5310C

Drinking Water / Wastewater

USEPA 415.3

Drinking Water

USP <643> / EU 2.2.44

Purified Water

ASTM D 4779

Ultrapure Water

ASTM D 4839

Wastewater, Seawater


Disinfection Byproduct Rule


Spill Prevention & Control Countermeasures

ISO 8245

Drinking Water, Wastewater

EN 1484

Surface & Ground Waters, Potable Water

Product details


Operating Principle: Heated sodium persulfate oxidation

Measurement Technique Non-dispersive infrared (NDIR) detection

Measurement Range 10 ppb C – 30,000 ppm C

(multiple calibration ranges or dilution required)

Instrument Detection Limit (IDL) 2 ppb C

Operator Interface Color LCD touchscreen display with Windows®

CE-based software

Operating Modes Standalone (Windows® CE), PC-controlled, or LAN/

LIMS network connectivity

Basic Software Single instrument operation with data transfer to PC

Optional ATOC Software Network LAN/LIMS operation, data management,

custom reports, and 21CFR11 compliance

Autosampler 88 position rotary autosampler designed to fit

directly underneath Aurora 1030W analyzer

Sample Injection Manual syringe, sipper tube, autosampler, or multistream

at-line sampling module

Certification CE, EMC: EN61326 / Safety: IEC 61010-11 2001

Reagents Required Sodium persulfate, 5% phosphoric acid, rinsewater

Sample Injection Volume 10μL – 10mL

Method TC Acid and persulfate reaction

Method TIC Acidification with Phosphoric acid and sparging

Method TOC NPOC by heated persulfate oxidation or TC-TIC

Heating Adjustable to 100 ˚C in 1˚C increments

Repeatability 2.0% or 2 ppb, whichever is greater

Linearity ±

1% FS or 2% relative, whichever is greater

Sample pathway Color coded Teflon® tubing

Sample handling Syringe with isolation loop to prevent contamination

Gas Supply N2 (99.998%), zero-grade air, or O2 (99.998%)

Power Supply Variable voltage, 100-240VAC, 50/60 Hz, 950W

Dimensions – Aurora 1030 42.5 cm H x 49.5 cm W x 41.9 cm D

(16.75 in. H x 19.5 in. W x 16.5 in. D)

Dimensions – Aurora 1030 + 1088 Autosampler 26.75 in. H x 19.5 in. W x 23 in. D

Weight – Aurora 1030 + 1088 Autosampler 15.4 kg (34 lbs.), 34.5 kg (76 lbs.) 1030W + 1088


  • Optional ATOC Software Network LAN/LIMS operation, data management, custom reports, and 21CFR11 compliance
  • Second oxidation chamber upgrade for concurrent sample processing

OI 1030W TOC Cavity Ring Down Spectroscopy (CRDS)

The OI Aurora 1030W TOC Analyser ensures high-throughput analysis of liquid samples for organic contamination by the heated persulfate wet oxidation technique and additional configuration allows extended scope of capability to also test δ13C.

The coupling of a Picarro δ13C-CO2 analyser with the OI Analytical Aurora 1030W TOC analyser enables the system to provide δ13C measurements of the dissolved carbon in water samples. Applications include; analysis of groundwater, surface water, estuaries, sea water and industrial water.

The system is fully automated for the measurement of dissolved inorganic carbon (DIC) in salt and fresh water by acidification, and δ13C in dissolved organic carbon (DOC) in fresh water by sodium persulfate oxidation.

The CRDS system is fully automated for the measurement of up to 88 samples.

a1-enviroscience are proud to only partner with analytical equipment manufacturers at the forefront of innovation. OI Analytical has lead the way with TOC analysis and their water quality monitoring applications since 1972. Picarro are dedicated to the development of ultra-precise and easy-to-use instruments that are used around the globe.


Consultation – Do you need further information?
Then please contact us by e-mail or telephone!