Abstract: The present invention relates to a method for identifying and/or authenticating a sample, comprising adding at least one chemical compound to the sample, determining a level of the at least one compound after addition to the sample; comparing the level of the at least one compound to a reference level and identifying the sample based on the comparison with the reference sample and the effect of the sample on the level of the at least one compound. The invention further relates to the use of the at least one compound in the method for identifying and/or authenticating a sample. Further, the invention relates to the use of a kit comprising the at least one compound in the inventive method. In addition, the invention relates to a composition comprising the at least one compound. Further, the invention relates to a kit comprising the compositions provided herein, e.g. for calibrating the methods provided herein and/or the instruments employed in the methods provided herein.

Abstract: A method for detecting a known target substance in a sample by means of nuclear magnetic resonance (NMR) of a preselected nuclear species contained in the target substance is described.

Abstract: For simultaneously determining the analytical NMR spectra of a number of samples placed suitably arranged in the measuring site of an NMR measuring apparatus, spatially and timely varying magnetic fields are used. The resulting signals are spatially resolved by a suited processing, for example Fourier transform. Surprisingly, from these signals, analytical NMRs of high resolution can be obtained for each sample. The method can be applied to two-dimensional arrangements of samples, for example a bundle of capillaries imitating a conventional NMR sample tube or a well plate, or three-dimensional arrangements, for example stacks of well plates. The method allows the determination of NMR spectra for analysis or for comparison with anterior spectra for long time behavior studies and quality assessment with only a fraction of time needed for measuring the samples individually.

Abstract: For simultaneously determining the analytical NMR spectra of a number of samples placed suitably arranged in the measuring site of an NMR measuring apparatus, spatially and timely varying magnetic fields are used. The resulting signals are spatially resolved by a suited processing, for example Fourier transform. Surprisingly, from these signals, analytical NMRs of high resolution can be obtained for each sample. The method can be applied to two-dimensional arrangements of samples, for example a bundle of capillaries imitating a conventional NMR sample tube or a well plate, or three-dimensional arrangements, for example stacks of well plates. The method allows the determination of NMR spectra for analysis or for comparison with anterior spectra for long time behavior studies and quality assessment with only a fraction of time needed for measuring the samples individually.