PREPARING YOUR SAMPLE
	Why is it helpful to know if my sample is stable with respect to time, temperature, and exposure to heat, light, air, or moisture?
	There may be a time lag of up to several days before your sample is run, and you want to be certain that the spectrum you obtain is of the compound you submitted. Also, your sample may need to be transported to the NMR lab, and you will probably not have control over the environmental conditions en route. It is therefore important to consider any changes that might occur as a result of a delay or improper handling. If you have a sample that is not stable, you should discuss it with your instructor or NMR spectroscopist.