"2" .
"Concentration standard deviation of total nitrogen {total_N} {PON} per unit volume of the water body [particulate >GF/F phase] by filtration, acidification and elemental analysis"@en .
"SDNTOTP1" .
"SDNTOTP1" .
"SD_'PON'>GFF" .
"22-MAR-16" .
.
"2" .
"Unavailable" .
.
"accepted" .
"SDNTOTP1" .