Zobrazeno 1 - 4
of 4
pro vyhledávání: '"P. H. Siitonen"'
Autor:
Barbara J. Porter, James H. Yen, Mary Bedner, A. Nguyen Pho, Catherine A. Rimmer, Joseph M. Betz, Karsten Putzbach, Karen E. Murphy, Michele M. Schantz, Stephen A. Wise, Bryant C. Nelson, Katherine E. Sharpless, Laura J. Wood, J. Brown Thomas, R. L. Evans, Mario Román, P. H. Siitonen, Lane C. Sander
Publikováno v:
Analytical and Bioanalytical Chemistry. 391:2023-2034
A suite of three dietary supplement standard reference materials (SRMs) containing bitter orange has been developed, and the levels of five alkaloids and caffeine have been measured by multiple analytical methods. Synephrine, octopamine, tyramine, N-
Publikováno v:
Applied and Environmental Microbiology. 60:3343-3348
A constitutively expressed aliphatic amidase from a Rhodococcus sp. catalyzing acrylamide deamination was purified to electrophoretic homogeneity. The molecular weight of the native enzyme was estimated to be 360,000. Upon sodium dodecyl sulfate-poly
Autor:
P H, Siitonen, H C, Thompson
Publikováno v:
Journal of AOAC International. 81(6)
A 3-laboratory method trial was conducted to evaluate 2 sample digestion procedures and instrumental determination parameters for analysis of calcium and lead in Ca supplements. Calcium supplements were treated by dry-ash digestion or microwave disso
Publikováno v:
Journal of bacteriology. 178(8)
An amidase capable of degrading acrylamide and aliphatic amides was purified to apparent homogeneity from Klebsiella pneumoniae NCTR 1. The enzyme is a monomer with an apparent molecular weight of 62,000. The pH and temperature optima of the enzyme w