The Dintok ST 10 is extremely suitable for the cost-effective automation of St-COD analysis. The analyzer consists of a XYZ sample-handling station with a sample capacity of 96 tubes. A gripper is used to transport the tubes to the different positions. Furthermore the analyzer is equipped with a thermo reactor (capacity 96 tubes) and a mixing device, for mixing the tubes before heating and measuring. A photometer is connected to measure the samples and the measured value is transferred to a PC.
Features Dintok ST 10 include:
· Complete “walk-away “automation; mixing, heating, cooling and photometric detection are fully automated
· COD Analysis according to ISO 15705 and EPA 410.4
· User-friendly, minimized handling of toxic chemicals by laboratory staff
· Environmentally friendly, less reagents
· Flexible, compatible with different COD meters and reaction tubes
· Barcode identification
· User definable print-out
· Export to LIMS, Excel, etc.
Most laboratories are familiar with the well-known chemical oxygen demand or COD value of water. The Chemical Oxygen Demand (COD) test is intended for the examination of waters of various qualities.
The COD value of water as determined by this dichromate method can be considered as an estimate of the theoretical oxygen demand, i.e. the amount of oxygen consumed in total chemical oxidation of the organic constituents present in the water.
This small scale sealed-tube COD test method can be used for any aqueous sample, i.e. water suitable for domestic or industrial supplies, surface water, ground water, cooling or circulating water, boiler feed water, treated and untreated sewage or industrial waste water and saline waters.
Dintok latest development is the ST 10COD robotic analyzer, which has been designed for the cost-effective automation of COD analysis. Thisrobotic analyzer offers a real walk-away concept for the sealed-tube method according to ISO 15705 and EPA 410.4.
The ST 10 analyzer consists of a XYZ sample handling station with a sample capacity of 96 tubes. Higher capacity is possible on our St-50COD robotic analyzer.
After the homogeneous sample is added into the reaction tubes by the operator, the tubes are placed in the sample racks and the analyser is started. The analyser will pick-up the tubes and mixes them. Then the tubes will be automatically positioned in the reactor where they are heated for two hours at 150 ºC. The analyser keeps track of the reaction time per tube.
When the reaction time is completed the analyzer places the tubes in the sample rack to cool down to 60ºC, after which they are mixed when still being warm. After the samples are cooled down to ambient temperature they will be measured with a photometric detector on the required wavelength The concentration is shown in the result screen of the software and the data can be transported to the LIMS system.
Dintok ST 10 robotic analyzer can also be configured to automate one of the following applications:
· BOD (Biochemical Oxygen Demand)
· PH in soil and water
· Ammonia ISE
Also all our robot analyzers can be used as sample preparation unit such as dilution station, sample splitter or titration sampler.