400 MHz NMR Karloff (Solids)

Research Applications

Characterization of quadrupolar nuclei for inorganic and biological materials and natural sediments
Cryogenic NMR capabilities for 2H dynamics or wideline NMR of nuclei in dilute environments
Characterization of terrestrial carbon in plant materials and soils.

Researchers may operate the system independently on site or remotely. Most operations are standard, but users are strongly suggested to collaborate with EMSL scientists for cryogenic operations.

NOTE: this spectrometer has limited access. Contact the instrument custodian for more details.

Solid-state NMR probes:

400 Probes	Style	Top Speed	VT Range	Range of X	Range of Y	Make
3.2 mm HXY	MAS	25 kHz	-150 C to 250 C	113Cd - 31P	25Mg - 27Al	Rev-olution
4 mm HX	MAS	18 kHz	-150 C to 250 C	25Mg - 31P		EMSL
5 mm HXY	MAS	17 kHz	-150 C to 250 C	113Cd -31P	25Mg- 27Al	Doty
5 mm HX	Static Cryogenic		6 K to 250 K	HX cross coil, 2H fixed single tuned and HXY ross coil		EMSL
7.5 mm HX	MAS	7 kHz	-150 C to 250 C	25Mg – 31-P		EMSL

Instrument ID:

34222

Availability: 24 hours a day, 7 days a week

Custodians

Andrew S Lipton		as.lipton@pnl.gov
Nancy Washton	(509) 371-7094	Nancy.Washton@pnnl.gov

Publications

Advanced solvent based methods for molecular characterization of soil organic matter by high-resolution mass spectrometry.

Soil organic matter (SOM) a complex, heterogeneous mixture of above and belowground plant litter and animal and microbial residues at various degrees...

Quick Specs

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Science Highlights

No highlights are available at this time.

Projects

Behavior of Ions and H2O at NOM, Clay, and Clay-NOM Interfaces with Supercritical Fluids

Our research program strives to provide new insight into the fundamental molecular-scale dynamics, energetics, and reactivity of geochemically...

Development of Magic Angle Spinning NMR Metabolomics Capabilities

State-of-the-art high resolution magic angle spinning (HR-MAS) NMR metabolomics capabilities, where a sample spinning rate of few kHz or more is used...

Microbial Carbon Transformations in Wet Tropical Soils: The Effects of Warming, Drying, and Redox Fluctuation

Tropical forest soils store more carbon (C) --as plant litter and decomposed organic matter-- than any other terrestrial ecosystem and play a...

Uncovering the Physico-Chemical Rules Of Assembly in Grass Cell Wall Architecture that Lead to Enzymatic Recalcitrance via Multi

Advanced solid state (ss) NMR methods will be used to elucidate the architecture and arrangement of grass plant cell walls. Our understanding of...

UNDERSTANDING NANOSCALE CHEMISTRY OF HEAVY-METAL RICH BIO-MATERIALS FROM SOIL ARTHROPODS

The jaws, leg claws, stings and other tools of a large fraction of arthropods, some worms and members of other phyla, contain extraordinary amounts...