title: Collaborative study of the spectrophotometric determination of phosphatase activity in milk utilizing a new alkaline phosphatase assay system.
mesh_terms: D000469:Alkaline Phosphatase / Q000032:analysis*; D000704:Analysis of Variance; D000818:Animals; D002417:Cattle; D003956:Dialysis; D007202:Indicators and Reagents; D008722:Methods; D008892:Milk / Q000201:enzymology*; D010635:Phenolphthaleins; D010636:Phenols; D013053:Spectrophotometry
chemical_list: D007202:Indicators and Reagents; D010635:Phenolphthaleins; D010636:Phenols; D000469:Alkaline Phosphatase