Related ArticlesNPK NMR Sensor: Online Monitoring of Nitrogen, Phosphorus, and Potassium in Animal Slurry.
Anal Chem. 2015 Jul 7;87(13):6446-50
Authors: Sørensen MK, Jensen O, Bakharev ON, Nyord T, Nielsen NC
Abstract
Knowledge of the actual content of nitrogen, phosphorus, and potassium (NPK) in animal slurry is highly important to optimize crop production and avoid environmental pollution when slurry is spread on agricultural fields. Here, we present a mobile, low-field nuclear magnetic resonance (NMR) sensor suitable for online monitoring of the NPK content in animal slurry as an alternative to crude estimates or tedious nonspecific, off-site laboratory analysis. The sensor is based on (14)N, (17)O, (31)P, and (39)K NMR in a digital NMR instrument equipped with a 1.5 T Halbach magnet for direct detection of ammonium N, total P, and K and indirect evaluation of the organic N content, covering all practical components of NPK in animal slurry. In correlation studies, the obtained NMR measurements show good agreement with reference measurements from commercial laboratories.
Small animal cardiovascular MR imaging and spectroscopy
Small animal cardiovascular MR imaging and spectroscopy
Publication date: Available online 30 March 2015
Source:Progress in Nuclear Magnetic Resonance Spectroscopy</br>
Author(s): Adrianus J. Bakermans , Desiree Abdurrachim , Rik P.M. Moonen , Abdallah G. Motaal , Jeanine J. Prompers , Gustav J. Strijkers , Katrien Vandoorne , Klaas Nicolay</br>
The use of MR imaging and spectroscopy for studying cardiovascular disease processes in small animals has increased tremendously over the past decade. This is the result of the remarkable advances in MR technologies...
nmrlearner
Journal club
0
04-12-2015 02:40 AM
[NMR paper] Nitrogen-15 NMR studies of nitrogen metabolism in Picea glauca buds.
Nitrogen-15 NMR studies of nitrogen metabolism in Picea glauca buds.
Related Articles Nitrogen-15 NMR studies of nitrogen metabolism in Picea glauca buds.
Plant Physiol Biochem. 2004 Dec;42(10):803-9
Authors: Bagh K, Hiraoki T, Thorpe TA, Vogel HJ
In vivo (15)N nuclear magnetic resonance (NMR) as well as (15)N solid-state magic angle spinning (MAS) NMR spectroscopy were used to investigate nitrogen metabolism in cultured white spruce (Picea glauca) buds. Long-term as well as short-term experiments were carried out involving the use of...
nmrlearner
Journal club
0
11-24-2010 10:03 PM
[NMR paper] Immobilization of primary astrocytes and neurons for online monitoring of biochemical
Immobilization of primary astrocytes and neurons for online monitoring of biochemical processes by NMR.
Related Articles Immobilization of primary astrocytes and neurons for online monitoring of biochemical processes by NMR.
Dev Neurosci. 1996;18(5-6):478-83
Authors: Alves PM, Flögel U, Brand A, Leibfritz D, Carrondo MJ, Santos H, Sonnewald U
Immobilization of primary astrocytes and cerebellar granule neurons in basement membrane gel threads and on porous microcarriers, respectively, is described. Five different porous microcarriers were...
nmrlearner
Journal club
0
08-22-2010 02:27 PM
[NMR paper] Binding of sugar ligands to Ca(2+)-dependent animal lectins. I. Analysis of mannose b
Binding of sugar ligands to Ca(2+)-dependent animal lectins. I. Analysis of mannose binding by site-directed mutagenesis and NMR.
Related Articles Binding of sugar ligands to Ca(2+)-dependent animal lectins. I. Analysis of mannose binding by site-directed mutagenesis and NMR.
J Biol Chem. 1994 Jun 3;269(22):15505-11
Authors: Iobst ST, Wormald MR, Weis WI, Dwek RA, Drickamer K
The Ca(2+)-dependent carbohydrate-recognition domain (CRD) of rat serum mannose-binding protein has been subjected to site-directed mutagenesis to determine the...
nmrlearner
Journal club
0
08-22-2010 03:33 AM
[NMR paper] Binding of sugar ligands to Ca(2+)-dependent animal lectins. I. Analysis of mannose b
Binding of sugar ligands to Ca(2+)-dependent animal lectins. I. Analysis of mannose binding by site-directed mutagenesis and NMR.
Related Articles Binding of sugar ligands to Ca(2+)-dependent animal lectins. I. Analysis of mannose binding by site-directed mutagenesis and NMR.
J Biol Chem. 1994 Jun 3;269(22):15505-11
Authors: Iobst ST, Wormald MR, Weis WI, Dwek RA, Drickamer K
The Ca(2+)-dependent carbohydrate-recognition domain (CRD) of rat serum mannose-binding protein has been subjected to site-directed mutagenesis to determine the...
NPK NMR Sensor: Online Monitoring of Nitrogen, Phosphorus, and Potassium in Animal Slurry.
Linear Mode
