En cuanto a la afirmación que hace Iglesias de que no existe literatura científica que avale la formación de artefactos de metenamina durante el análisis, dejo este enlace, que ya he visto en otros foros:
http://www.ncbi.nlm.nih.gov/pubmed/6464346
Entiendo poco el inglés y mucho menos la química, pero parece que Vega no puede patentar ese "nuevo método para fabricar metenamina", ya lo hicieron antes DuVall MD, Ray AC, Reagor JC.
http://www.ncbi.nlm.nih.gov/pubmed/6464346
Quote:The effect of different basic drug assay procedures on the formation of artifactual methenamine from formaldehyde preserved and nonpreserved tissue was studied. Trichloroacetic acid was compared with ammonium sulfate as a protein precipitant and sodium hydroxide was compared with ammonium hydroxide as a pH modifier. The assay of nonpreserved tissue failed to result in the detection of methenamine. However, when preserved tissue was assayed by procedures which utilized ammonium compounds, large quantities of methenamine were detected using TLC and GC/MS. Trace quantities of methenamine were detected in extracts of preserved autolyzed tissue which was assayed using nonammonium compounds.
Entiendo poco el inglés y mucho menos la química, pero parece que Vega no puede patentar ese "nuevo método para fabricar metenamina", ya lo hicieron antes DuVall MD, Ray AC, Reagor JC.