Nutrients: 
Oxygen determination according to Winkler-Carpenter by means of a SIS Dissolved 
Oxygen Analyser (DOA) with photometric end point determination at selected depths. 
Determination of the pH value (CTD samples and continuously via the sea water pipe). 
Determination of depth of visibility by means of a Secchi disk at daylight stations. 
Filtration of surface water samples and freezing of the glass fiber filters for the 
determination of chlorophyll according to Jeffrey and Humphrey after the cruise. 
Determination of sea water alkalinity. 
Sampling and freezing aboard for determination of Total-N and Total-P ashore (German: 
Bight-stations). 
Radiochemistry: 
2 x 35 | surface water for the determination of strontium-90 after the cruise. 
One liter surface samples for the analysis of tritium after the cruise. 
150 | surface water samples for the on-board analysis of caesium-137 by means of an ion 
exchanger (KNiFGC-PAN). 
100 | surface water samples for the on-board analysis of transuranic elements. 
270 | samples taken at station GN808 for the determination of strontium and tritium after 
the cruise and of caesium and transuranic elements on board. 
Trace Metals: 
Determination of metal concentrations in sea water and suspended matter. Sampling via 
Clean CTD with GoFlo sampler or - if Clean CTD is not possible - MERCOS sampler with 
plastic covered wire.