It is imperative that samples are submitted to the SampleJet properly – this will help us avoid numerous system failures!
- Caps MUST be completely engaged on the NMR tube. After quick inspection of the rack daily – we’re finding lots of caps that are barely holding on. Please see the picture below. If you tube is almost touching the bottom of the rack – your cap is not on far enough!! If too long – the system will fail.
- Caps cannot be split! Again, looking through the rack – there are usually several split caps.
- NMR tubes cannot be broken/cracked. The caps must be on exactly straight.
With variations of tube lengths, caps on/off/split – the system can never fulling be calibrated. Our errors will continue if these steps are not followed. If this continues – we may have to start requiring only one brand of NMR tubes – which may increase your cost/sample. You will still need to follow the direction above!
-TLW, NMR manager