MARIANDA products

We have developed a number of analytical instruments for the measurement of the parameters of the oceanic carbon system. These include:

VINDTA 3S: determination of titration alkalinity in seawater samples

The VINDTA (Versatile INstrument for the Determination of Titration Alkalinity) is a system for titration of a sample with acid and analysis of the titration curve ... more

VINDTA 3D: determination of total carbon in seawater samples

Another version of the VINDTA has been developed to allow for determination of total dissolved inorganic carbon (by coulometry) ... more

VINDTA 3C: determination of alkalinity and total carbon in seawater samples

A version of the VINDTA (Versatile INstrument for the Determination of Total inorganic carbon and titration Alkalinity) has been developed to allow determination of titration alkalinity and total dissolved inorganic carbon from the same sample simultaneously ... more

VINDTA 4: determination of alkalinity and total carbon in seawater samples, new hardware

A new version of the VINDTA (Versatile INstrument for the Determination of Total inorganic carbon and titration Alkalinity) has been constructed to use newer hardware for the alkalinity titration and also allows for modifications of the analytical procedure...more

AIRICA: determination of total carbon in small samples

The Automated Infra Red Inorganic Carbon Analyzer is based on the IR-detection of CO2 purged from an acidified sample and is also suited for smaller sample size ... more

ALISTA: determination of alkalinity in small samples

The ALkalinity In Small samples by Titration Analysis is based on GRAN titration by 5 step acid addition...more

SUNDANS: underway measurement of CO2 partial pressure

The Surface UNderway carbon Dioxide partial pressure ANalySer is designed to measure the CO2 partial pressure in surface seawater on research vessels ... more

SOMMA system: upgrades and repairs

We also have experience in hardware and software upgrades and repairs for the SOMMA analyzer (Single Operator Multi-parameter Metabolic Analyzer, formerly built by Graduate School of Oceanography, R.I., USA)
... more

Future products

We are currently working on instruments for spectrophotometric pH measurements; contact us for further details.