Parameter: NH4_plus

Dataset: 
Nitrogen isotope fractionation for ammonium assimilation by marine phytoplankton
Parameter: 
Ammonium
Master parameters information
Short Name:
 NH4
Short Description:
 Ammonium
Official Name:
 Ammonium
No Data Value:
Description:
 

Ammonium and ammonia concentration parameters in any body of fresh or salt water.

Dataset-parameters information
Supplied Name: 
NH4_plus
Supplied Units: 
umol L-1
Datatype: 
Float
Conversion Necessary: 
no
Conversion Utility: 
No Data Value: 
nd
Description: 
Ammonium concentration. Concentrations >= 50 uM measured fluorometrically on Turner Trilogy Fluorometer with the o-phthalaldehyde (OPA) method (Holmes et al. 1999). Concentrations < 50 _M analyzed on U-3010 VIS Specrophotometer with the indophenol method (Solorzano 1969)