Concentration standard deviation of divinyl chlorophyll-b {DVchl-b} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) DVchl-b_water>GF/F_SD_HPLC The square root of the average of the squares of deviations about the mean of a set of values of the specified measurement. 2019-06-04 17:32:45.0 SDN:P01::DVCBSDP1 SDN:P01::DVCBSDP1 SDN:P01::DVCBSDP1 4 4 2019-06-04 17:32:45.0 accepted false