NMR probe for the simultaneous acquisition of multiple samples

A dual channel probe for the simultaneous acquisition of NMR data from multiple samples has been developed. This multiplex probe consists of two noninteracting sample coils that are each capable of detecting NMR signals at the same resonant frequency with good sensitivity and resolution. C-13 free induction decays for the two samples, methanol (C-13, 99%) and carbon tetrachloride (C-13, 99%), were acquired simultaneously at 75.44 MHz using a single transmitter pulse and separate NMR receivers. SIN measurements are comparable to those observed using single coils. No evidence of cross talk is evident in the spectra even after considerable signal averaging. The probe demonstrates the feasibility of significant parallelism in NMR, which will be of interest in situations where high throughput analysis is desired, (C) 1999 Academic Press.