Attempts to understand and control new synthetic recreational drugs are being hindered by analysis laboratories» inability to obtain pure samples of the compounds, experts say. (scientificamerican.com)
Enable follow - up structural studies by obtaining pure samples after isolating primary proteins. (resume-now.com)
Steger et al. (p. 1280) demonstrate that the nuclear spins of 31P impurities in an almost isotopically pure sample of 28Si can have a coherence time of as long as 192 seconds at a temperature of ∼ 1.7 K. (science.sciencemag.org)