title: Colorimetric determination of inorganic pyrophosphate by a manual or automated method.
mesh_terms: D001322:Autoanalysis; D003124:Colorimetry / Q000379:methods; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D011756:Diphosphates / Q000032:analysis*; D004926:Escherichia coli / Q000201:enzymology; D005069:Evaluation Studies as Topic; D007700:Kinetics; D010710:Phosphates / Q000032:analysis*
chemical_list: D011756:Diphosphates; D010710:Phosphates; D012321:DNA-Directed RNA Polymerases