ABSTRACT
Orthophosphate and condensed phosphate are a measure of inorganic phosphorus. e latter is also termed as “acid-hydrolyzable phosphate.” However, during mild acid hydrolysis, a small amount of phosphorus from organic phosphorus compounds may be released. To determine suspended and dissolved forms of phosphorus, the sample should be ltered through a 0.45 μm membrane lter, and the ltrate and the residue analyzed separately.
