Nuclear Magnetic Resonance Absorption in Hygroscopic Materials

Shaw, T. M.; Elsken, R. H.

doi:10.1063/1.1747875

Cited by 51 publications

(20 citation statements)

References 6 publications

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“…Such a decrease has not been possible to detect with certainty in the present work, which may, however, be due to the rather great method error and other factors affecting the signal size. The protons bound in proteins and many other organic compounds (not including fat) may probably give resonance signals which are so broad (SHAW & PALMER 1951, SHAW, ELSKEN & KUNSMAN 1952, SHAW, ELSKEN & PALMER 1952 that they would not appear on the oscilloscope screen in the present work.…”

Section: Discussionmentioning

confidence: 80%

Some Preliminary Observations on the Proton Magnetic Resonance in Biologic Samples

Odeblad¹,

Lindström²

1955

Acta Radiologica

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Section: Discussionmentioning

confidence: 80%

Some Preliminary Observations on the Proton Magnetic Resonance in Biologic Samples

Odeblad¹,

Lindström²

1955

Acta Radiologica

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“…It has been shown that nuclear magnetic resonance (n.m.r. ) techniques can lie applied to the determination of the nature and amount of water in a wide range of materials ( 10,11,12). A recent publication by Shaw, Elsken, and Lundin 1131 deals with some aspects of the wool-water complex.…”

Section: Introductionmentioning

confidence: 99%

Physical Properties of Wool Fibers at Various Regains-

West

Haly

Feughelman

1961

Textile Research Journal

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Both direct absorption curves and derivative curves due to proton magnetic resonance absorption in wool have been obtained. Peak heights and widths of the absorption lines were measured for wool samples equilibrated at a number of relative humidities in the range 0 to 90%. All water protons in wool appear to be less firmly bound than the keratin protons, but less mobile than liquid water. It seems clear that an increment of absorbed water changes the binding energies of previously absorbed water. No evidence was obtained of a subdivision of water in wool into two or three fractions with different binding energies which are successively bound as the equilibrium regain is increased.--------

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“…Such a decrease has not been possible to detect with certainty in the present work, which may, however, be due to the rather great method error and other factors affecting the signal size. The protons bound in proteins and many other organic compounds (not including fat) may probably give resonance signals which are so broad (SHAW & PALMER 1951, SHAW, ELSKEN & KUNSMAN 1952, SHAW, ELSKEN & PALMER 1952) that they would not appear on the oscilloscope screen in the present work.…”

Section: Discussionmentioning

confidence: 77%

Some Preliminary Observations on the Proton Magnetic Resonance in Biologic Samples

Odeblad¹,

Lindstrom²

1955

Acta Radiologica

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ByE r i k 0 cl e b l a cl and Gun n a r Lin cl s t r 0 m If a sample containing atomic nuclei with a magnetic moment is placed in a magnetic field, the nuclei take up certain allowed directions with respect to the field. Transitions between these quantized directions can be induced if electromagnetic radiation with the appropriate quantum energy acts upon the sample. In a magnetic field of about 6,700 gauss the quantum energy for proton transitions is about 9 ·10 20 erg, corresponding to a frequency of about 26.5 megacycles.If this 'resonance frequency' is applied to the specimen, and the magnetic field is swept over a small interval less than a gauss, absorption of energy can be detected by the resonance absorption technique of PURCELL,

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Nuclear Magnetic Resonance Absorption in Hygroscopic Materials

Cited by 51 publications

References 6 publications

Some Preliminary Observations on the Proton Magnetic Resonance in Biologic Samples

Some Preliminary Observations on the Proton Magnetic Resonance in Biologic Samples

Physical Properties of Wool Fibers at Various Regains-

Some Preliminary Observations on the Proton Magnetic Resonance in Biologic Samples

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