Results 101 to 110 of about 403,538 (154)

Nitrogen isotope analysis of ammonium and glycine [PDF]

open access: yes, 2005
Stable isotope techniques can be used as a tool in nitrogen cycling studies of different ecosystems. The studies are based on measurement of the heavy (15N)- to- light (14N) isotopic ratios of nitrogen in different biospheric pools.
Norlin, Elin
core  

Total serum pentosidine quantification using liquid chromatography-tandem mass spectrometry

open access: yesBone Reports
Pentosidine (PEN) is an Advanced Glycation End-product (AGE) that is known to accumulate in bone collagen with aging and contribute to fracture risk. The PEN content in bone is correlated with serum PEN, making it an attractive, potential osteoporosis ...
Lindsie A. Blencowe   +4 more
doaj   +1 more source

Analyzing peptides and proteins by mass spectrometry: principles and applications in proteomics [PDF]

open access: yes, 2012
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166The study of proteins has been a key element in biomedicine and biotechnology because of their important role in cell functions or enzymatic activity. Cells are the basic unit of living
Estanyol i Ullate, Josep Maria   +3 more
core   +1 more source

Liquid chromatography coupled to mass spectrometry for steroid hormones analysis: issues and solutions in sample preparation and method development

open access: yesJournal of Chromatography Open
Current work presents main aspects of the application of liquid chromatography in combination with low- and high-resolution mass spectrometry to an analysis of steroid hormones. Advantages and challenges of both targeted and untargeted analysis are shown
A. Temerdashev   +7 more
doaj   +1 more source

Quantification of growth hormone in serum by isotope dilution mass spectrometry [PDF]

open access: yes, 2009
Inter-assay variation of antibody based routine tests is hampering comparability of measurement results for growth hormone (GH) between different laboratories and decision making in clinical practice. Here it is demonstrated, that quantification of GH by
André   +4 more
core   +1 more source

Insect bioactive capabilities of Epichloë festucae var lolii AR48 infected Lolium perenne : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Biochemistry at Massey University, Manawatū, New Zealand [PDF]

open access: yes, 2018
Figures printed with permission from respective publishers.As the modern world expands and develops, new innovative methodologies for more efficient and environmentally friendly agricultural practices are required.
Miller, Taryn Angela
core  

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