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| SETTING UP YOUR EXPERIMENT | |||||
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After you have entered all of your samples into the queue, you are ready to begin data acquisition. But first, double-check your sample ID's, solvent choices, and requested experiments to make sure that they are correct. NMR-CTP participants should ensure that the "dummy" sample is in the autosampler slot immediately following the last sample. This water sample is marked by blue tape at the top of the tube. |
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| Once you are certain that your sample(s) have been entered correctly, highlight the relevant row(s) and click on the "Submit" button at the bottom left of the screen (click here for a larger version). If you have entered more than one experiment, make sure that all rows containing sample entries are highlighted. | |||||
| The small traffic light icons on the left side of the sample entries will turn yellow at this point, as shown below (a larger screen is here). The first one may change to green almost immediately. If it doesn't, the sample queue needs to be restarted; click on the help button below the screen to learn how. | |||||
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Once the traffic light next to an entry has turned green, that experiment is in progress. There are two ways to follow the course of an experiment. There are several large buttons on the green ICON-NMR background (shown below). These buttons blink when that operation is working, and darken when it is completed. More in-depth discussion of the operations represented by each of these buttons follows. |
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Set sample |
Lock |
Shim |
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Receiver gain |
Acquisition |
Data processing |
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| The actual signal, and the spectrum to which it corresponds, can also be observed during the acquisition. The "i" button on the white sample-entry screen (in the same row as the green "Go" button) opens up an Online Control box shown below (click here for a larger version). Real-time signals can be monitored with these controls, a plot can be generated, or the acquisition can be halted temporarily or stopped altogether. Further instructions on using these controls follow. | |||||
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| NOTE: At various times during a run, you will be presented with pop-up windows, most of which will contain a button labeled "SEEN". These are just informational messages. Simply click the button and the experiment will proceed normally. | |||||
