Analytical services

The Erken laboratory has an analytical lab specializing in quality-certified analyses of water chemistry, sediment chemistry, and phytoplankton. We also perform zooplankton analyses, but they are not certified.

For detailed information on our water chemistry and sediment analyses, including sensitivity, see the attached methods handbook.

The Erken laboratory provides analyses of the following water chemistry and sediment chemistry analyses:

Water analysis:
pH
Colour
Absorbance, unfiltered 420 nm*
Absorbance, filtered 420 nm
Alkalinity
Conductivity
Salinity*
Turbidity
Suspended material
Loss on ignition
Phosphate (PO4-P)
Particulate-P
Total Phosphorus (Total-P)
Ammonium (NH4-N)
Nitrite (NO2-N)
Nitrate (NO3-N)
Nitrite + Nitrate (NO2+NO3)
Particulate-N*
Total Nitrogen (Total-N)
Oxygen (O2)
BOD7*
Chlorophyll a
Si, dissolved*
Dissolved organic carbon (DOC)
Total organic carbon (TOC)
Sulfide*

Sediment analysis:
Water content
Loss on ignition
Total-P
Complete phosphorus fractionation

Plankton/algae analysis:
Phytoplankton, freshwater
Phytoplankton, brackish water*
Zooplankton, freshwater (brackish water*)

*Not an accredited analysis

Do you have questions about our analytical services and prices? Please contact Helena Enderskog.