. "2022-03-18 12:42:55.0" . "1" . . "" . "accepted"@en . . . "1" . "SDN:P07::2EXCNZRD" . . "false" . "SDN:P07::2EXCNZRD" . "\"Mass concentration\" means mass per unit volume and is used in the construction \"mass_concentration_of_X_in_Y\", where X is a material constituent of Y. A chemical species or biological group denoted by X may be described by a single term such as \"nitrogen\" or a phrase such as \"nox_expressed_as_nitrogen\". The equivalent term in the NERC P01 Parameter Usage Vocabulary may be found at http://vocab.nerc.ac.uk/collection/P01/current/PERDXXXX/2/."@en . "2022-03-18 12:42:55.0" . "SDN:P07::2EXCNZRD" . . "mass_concentration_of_peridinin_in_sea_water"@en .