Accession Number : ADA184359

Title :   A Low Volume Insert for Solid State Magic Angle Spinning NMR of Small Samples.

Descriptive Note : Technical rept. no. 5, Aug 86-Aug 87,

Corporate Author : UNIVERSITY OF SOUTHERN MISSISSIPPI HATTIESBURG DEPT OF POLYMER SCIENCE

Personal Author(s) : Mathias,Lon J ; Powell,Douglas G ; Bridges,James L

PDF Url : ADA184359

Report Date : 27 Aug 1987

Pagination or Media Count : 11

Abstract : Easily machined ceramic inserts with low volume capacities were compared to standard rotors packed completely with samples or with silica gel-diluted samples of adamantane and glycine. A disc shaped sample cavity gave better signal-to-noise than a cylindrically-shaped one for comparable sample size and number of cylindrically-shaped one for comparable sample size and number of scans, and gave the narrower peak widths than even the full rotor. The inserts are inexpensive and easy to use while facilitating high-speed rotor spin-up and recovery of the noncontaminated samples.

Descriptors :   *NUCLEAR MAGNETIC RESONANCE, *SAMPLERS, ROTORS, CERAMIC MATERIALS, SILICA GEL, INSERTS, DISTORTION, MAGNETIC FIELDS, SIGNAL TO NOISE RATIO, GLYCINE, ADAMANTANES, SPINNING(MOTION)

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE