Marine Chemistry Laboratory

 

 

Equipment: Total Alkalinity Titrator System

Model/Brand: AS-ALK2 Apollo SciTech

Specifications

  • Precision: ± 1-2 µmol/kg
  • Sample Volume: 10-25 mL (switch syringe for volume less than 10 mL or use a balance to weigh the sample)
  • Time: ~8 minutes per titration

Applications

Automates the Gran titration procedure, including controlling the titration and standardization procedures and the calculation of the final result.

 

 

Equipment: Potentiostat

Model/Brand: SP-50 BioLogic

Specifications

  • Control voltage: ±10 V
  • Voltage resolution: 5 µV on 200 mV range
  • Compliance: ±10 V
  • Current ranges: 800 mA to 10 µA
  • Maximum current: ±800 mA
  • Current resolution: 0.760 nA
  • Connection 2,3,4,5 terminal lead
  • Best acquisition time: 20 µs with EC-Lab Express;
  • Stability control mode (7 bandwidths)

Applications

Built around a simple, compact chassis, this electrochemical workstation is a fixed configuration unit with no additional options available. It is targeted at new researchers in the field of electrochemistry and is an ideal potentiostat for teaching and education. This highly cost-effective electrochemical workstation offers high-performance for electrochemists and benefits from all the EC-Lab® software features.

 

 

Equipment: Dissolved Inorganic Carbon Analyser

Model/Brand: AS-C5 APOLLO SCITECH

Specifications

  • Precision: ± 0.15% for seawater (or ± 3 µmol/kg)
  • Sample Volume: 0.1 – 1.5 mL per analysis
  • Time: ~ 3 minutes per analysis
  • Carrier Gas: N2 ~ 16 psi (1 atm)

Applications

For total dissolved inorganic carbon analysis in a variety of aquatic environments

 

 

Equipment: AA3 HR AutoAnalyzer

Model/Brand: AA3 SEAL

Specifications

  • High reproducibility
  • Low reagent consumption
  • Ultralow detection limits
  • Analyse multiple parameter in different channels per system design
  • Same wavelength referencing in real time

Applications

The SEAL AA3 HR chemistry analyzer can also perform solvent extraction, distillation, gas diffusion, on-line filtration and in-line UV digestion in a continuously flowing stream. In this lab, the system is designed for analysing seawater nutrient concentration.