Abstract
Abstract Unlike other inorganic phosphates, trimetaphosphate (TMP) is not adsorbed by soils. Trimetaphosphate in soils is hydrolyzed chemically and biochemically to triphosphate, which in turn is hydrolyzed further to pyrophosphate and orthophosphate. Studies on hydrolysis of TMP added to soils are desired, but no method is available for determination of this phosphate when present in mixtures containing other phosphates. Therefore, a method was developed for determination of TMP in mixtures containing ortho‐, pyro‐, and triphosphate. It involves treatment of a soil sample with a buffered (0.1 M Tris, pH 8) solution, precipitation of the orthophosphate and linear polyphosphates by the addition of BaCl2, and determination of the TMP remaining in the supernatant by a molybdenum blue method after acid hydrolysis at 80°C for 1 h. The method is simple and precise and allows quantitative determination of TMP added to soils.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
