a*i
发帖数: 1652 | 1 Thanks in advance for your help.
If I can't detect toluene using a 400MHz NMR spectrometor (Bruker), can I
say that toluene is below 5ppm? Chloroform-d is the solvent. | E***n
发帖数: 308 | 2 if u see 10ppm with good s/n, don't see 5ppm toluene, u can claim it is
below 10ppm.
【在 a*i 的大作中提到】
: Thanks in advance for your help.
: If I can't detect toluene using a 400MHz NMR spectrometor (Bruker), can I
: say that toluene is below 5ppm? Chloroform-d is the solvent.
| c*********d
发帖数: 33 | 3 You can run GCMS to see if it is inside. |
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