ICES Trial Survey and intercalibration
on Passive Sampling

Initiative from WGMS and MCWG

Focal point Foppe Smedes   (RIKZ The Netherlands)                                     Last updated 22 September 2006



GLOSSARY (alphabetic)




Cable strap

Nylon binder often used to keep cable together

Coated Bottle

Bottle with a reference phase coated on the inside of the bottle. Usually the wall but some times only the bottom. The top is lined with aluminium foil.

Exposure period

Number of days a sampler is exposed to sediment or water. In PSTS that is 6 weeks for water and for sediment 3 weeks (shaking)-5 weeks (rolling).

ICES parameter code

Up to 5-letter code for compounds to be analysed.

Internal Standard, IS

Standard added to the sample to correct for volume variation in the final extract. Is added in the last stage of the procedure. Also called “Syringe Internal Standard”

Mussels Local transplanted

Mussels sampled locally and transplanted to the sampling station in cages parallel with the passive samplers

Mussels Native

Mussels collected from the sampling station or nearby that reflect the water quality

Mussels Transplanted

Mussels sampled at a reference location and transplanted to the sampling station in cages


Polymeric chains (short or long) that are not cross-linked in the material and therefore can release with solvents. They will precipitate in the liner after injection on the GC and disturb the chromatography and quantification.

Passive sampler

Device for passively taking up (extracting) compounds from a matrix. For water a sampler consists of 6 sheets. In case of sediment it can be a bottle with a coating inside or a sheet. The sediment is brought in the bottle and shaken.

PRC in Sediment PS

Sediment PS aims fro equilibrium and an extraction that does not affect the concentration in the sediment. PRCs can confirm that no depletion took place and can give an indication if equilibrium was obtained.

PRC in water sampling

Performance Reference Compounds are used as an indicator for sampling rate. They are spiked on the sampler and the extend of release is a measure for the sampling rate.

Recovery IS

Internal standard added at the beginning of the analytical process. The yield represents the recovery.

Reference passive sampler

Sampler that is spiked but not exposed. Stored in freezer and analysed at same time as exposed samplers.

Sampler eye

The eye that can be used to fix the sampler for exposure.

Sampler Frame

Frame that allows to expose several samplers or mussel baskets

Sampler holder

Stainless steel strip with stems that allows holding 6 sheets of 100cm2 each. All 6 sheets together form a sampler. May also be called “sheetholder”.

Sampling depth

Distance from water surface to sampling point

Sampling Rate

This is the uptake of a sampler expressed as volume of water per time units, e.g. litre/day.


A piece of silicone rubber foil of 5.5x9.5x0.05 cm with two fixing holes of 5.5 mm ID 35 mm apart

Storage jar

100 ml glass bottle (heated overnight at 250°C) with aluminum foil lined cap. Always store in freezer when it contains a sampler.

Target compounds

Compounds to analyse in samples

Frame number

The frames are numbered. The number can be found in the upper ring (Kxx)

Sheet-holder number

The sheet holders are numbered on one end (Hxx). Sheetholder number is especially imported if different time periods of sampling are overlapping.

Bottle number

All used bottles are engraved with a number This should be used to identify samples, as no labels should be attached to allow measuring the bottle weight.