MIRAI Instrument

Instrument > Chemical analysis > Seawater analysis

Salinity measurement system

Manufacturer : Guidline Instruments Ltd.
Type : AUTOSAL8400B

Salinity measurement system(Autosal) is used for calculating the salinity in seawater. This instrument measures the electrical conductivity ratio of sample seawater at a controlled temperature. Conductivity ratio is converted into salinity by this system and recorded.

Nutrient analyzer(5ch) (MR09-02 - )

Manufacturer : BL TEC K.K.
Type : QuAAtro-2 HR

This system measures the nutrients(nitrate, nitrite, ammonia, silicate and phosphate) dissolved in seawater, which analyzes 5 parameters at the same time.

Nutrient analyzer(4ch) ( - MR09-01)

Manufacturer : BL TEC K.K.
Type : TRAACS-800

This system measures the nutrients(nitrate, nitrite, silicate and phosphate) dissolved in seawater, which analyzes 4 parameters at the same time.

Nutrient monitor

Manufacturer : BRAN+LUEBBE
Type : BRAN+LUEBBE continuous monitoring system Model TRAACS 800

Total dissolved inorganic carbon measurement system (MR11-05 Leg1 - )

Manufacturer : Nihon ANS, Inc.
Type : Model3000

This system measures TCO2(H2CO3,HCO3-,CO32-) dissolved in seawater. The sample water is taken by CTD observation using the Niskin water sampler.

Total dissolved inorganic carbon measurement system ( - MR11-E02)

Manufacturer : Nihon ANS, Inc.
Type : CM-5012 (carbon dioxide coulometer)

This system measures TCO2(H2CO3,HCO3-,CO32-) dissolved in seawater. The sample water is taken by CTD observation using the Niskin water sampler.

CN mass spectrometer

Manufacturer : SerCon Ltd.
Type : EUROPA20-20 ROBOPREP-SL

This system consists of two devices, the ROBOPLEP-SL which is preprocessing equipment, and the EUROPA20-20 which is isotope mass spectrometer. It is possible to measure simultaneously 13C and 15N in the biological sample which is comprised of liquid, solid and gas.On the R/V MIRAI, it is used for measurement of the organic matter quantity in phytoplankton.

pH meter (MR02-K03 - )

Manufacturer : Radiometer Analytical SAS
Type : PHM240

pH(Hydrogen ion concentration) of seawater is measured by pH meter potentiometrically in a closed cell. pH of sample water is calculated from the difference of electromotive force between standard solution and it.

pH meter ( - MR03-K04 Leg6)

Manufacturer : Radiometer Analytical SAS
Type : PHM95

pH(Hydrogen ion concentration) of seawater is measured by pH meter potentiometrically in a closed cell. pH of sample water is calculated from the difference of electromotive force between standard solution and it.

Titrator for DO Dissolved oxygen titration equipment (MR11-06 - )

Manufacturer : Kimoto Electric Co. Ltd.
Type : DOT-01X

Automatic burette
Manufacturer: Kyoto Electronics Manufacturing Co., Ltd.
Type: APB-620
This titrator measures the dissolved oxygen(D.O.) in seawater. The measurement follows Winkler method, and end-point is detected using photometric detector.

Titrator for DO ( - MR11-05 Leg2)

Manufacturer : Kimoto Electric Co. Ltd.
Type : DOT-01

This titrator measures the dissolved oxygen(D.O.) in seawater. The measurement follows Winkler method, and end-point is detected using photometric detector.

Titrator for total alkalinity(MR14-03 - )

Manufacturer : Nihon ANS, Inc.
Type :

Sample seawater is titrated with hydrochloric acid. The hydrochloric acid is made up in a solvent of sodium chloride as same as the ionic strength of seawater. Total alkalinity is calculated by titrated acid volume, electromotive force and sample seawater volume.

Titrator for total alkalinity( - MR14-02)

Manufacturer : Radiometer Analytical SAS
Type : TIM900, ABU901

Sample seawater is titrated with hydrochloric acid. The hydrochloric acid is made up in a solvent of sodium chloride as same as the ionic strength of seawater. Total alkalinity is calculated by titrated acid volume, electromotive force and sample seawater volume.

Fluorometer (TURNER DESIGNS)

Manufacturer : Turner Designs, Inc.
Type : 10-AU-005

Fluorometer measures chlorophyll-a in seawater, and estimates the biomass of phytoplankton. Although this instrument can not change the wavelength of each excitation and emission, operation is very simple.

Spectro-fluorometer

Manufacturer : SHIMADZU CORPORATION
Type : RF-5300PC

Spectro-fluorometer measures chlorophyll-a and chlorophyll-b, and estimates the biomass of phytoplankton. This instrument is possible to change the wavelength of each excitation and emission.

Absorption spectro-photometer

Manufacturer : SHIMADZU CORPORATION
Type : UV-2400PC

Absorption spectro-photometer measures the absorbance of each pigment in seawater, and estimates the biomass of phytoplankton.Beam is applied to the solution of standard substance, and the absorption spectrum is measured.

High-performance liquid chromatography (MR10-04 Leg1 - )

Manufacturer : Agilent Technologies Japan, Ltd.
Type : Agilent LC 1200 Series

This system speedily analyzes the target ingredient from a sample by using the difference of affinity with filler in column.By measuring various pigments in phytoplankton, it is possible to estimate the composition of species.

High-performance liquid chromatography ( - MR10-03 Leg2)

Manufacturer : Waters Corporation
Type : 474/996/717plus/600s/616pump

This system speedily analyzes the target ingredient from a sample by using the difference of affinity with filler in column.By measuring various pigments in phytoplankton, it is possible to estimate the composition of species.