"SDN:P01::ATNH3S91" . "SDN:P01::ATNH3S91" . . "SE_NH3_atmos_Jones1991" . "4" . "4" . "accepted"@en . . "false" . . "The standard error of the mean (defined as the standard deviation divided by the square root of the sample size) of multiple determinations of the specified phenomenon."@en . . "SDN:P01::ATNH3S91" . . "2019-06-04 17:33:52.0" . "Concentration standard error of ammonia {NH3 CAS 7664-41-7} per unit volume of the atmosphere [gaseous phase] by filtration with acid impregnated filter and nanomolar ammonium system after Jones (1991)"@en . "2019-06-04 17:33:52.0" . . .