Patent ID: 7999541

Claim:
A method for analyzing polymorphic forms and concentrations of a polymorphic chemical substance containing quadrupolar nuclei to determine at least one measurable characteristic of the polymorphic chemical substance selected from the group comprising: a) an amount of a certain chemical in the polymorphic chemical substance; b) a purity of the polymorphic chemical substance; c) an identification of a particular polymorphic form of the polymorphic chemical substance; d) a temperature of the polymorphic chemical substance; and e) a frequency of the polymorphic chemical substance; wherein the determination comprises: irradiating the polymorphic chemical substance with RF energy in a prescribed manner to stimulate nuclear quadrupole resonance (NQR) of certain quadrupolar nuclei within the polymorphic chemical substance; receiving and processing a signal emitted from said polymorphic chemical substance in close association with the irradiating to isolate an NQR signal therefrom; analyzing said NQR signal to obtain said at least one measurable characteristic of the polymorphic chemical substance; providing an output indicative of said at least one measurable characteristic for analytical purposes; and using said obtained NQR signal to differentiate between different polymorphic forms and concentrations of the polymorphic chemical substance.