Author Archives: chemweb

HMQC/HSQC/HMBC work well on I500

HMQC, HSQC and HMBC experiments now work well on the I500 after an unstable broadband RF amplifier was replaced. We have optimized two HSQC experiments for the I500: “iuhsqc” gives higher sensitivity, “iuhsqcad” gives better quality (less artifacts). Continue reading

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NMRs are back up

All the spectrometers are operational after the power outage this morning. Continue reading

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HMQC/HSQC/HMBC not work on I500

HMQC, HSQC and HMBC experiments currently are not working well on the I500 due to a hardware problem. All other experiments, including routine 1H, 13C, COSY, NOESY, ROESY, etc. work with no problem. Continue reading

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Safety Reminder

No lab gloves are allowed in the NMR facility. Only capped or sealed tubes are allowed in the NMR facility. All other chemistry (titrations, etc.) must be done elsewhere. A small wet lab (237A) is available off the NMR facility … Continue reading

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600 is back up

Both 600 and 800 spectrometers are operational. Continue reading

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I400 & I500 Autolock Problem Fixed

You might have encountered some difficulties with Autolock on the I400 and I500 due to a Lockphase change after the last week’s power outage. This problem has been fixed. Continue reading

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Chemistry NMR is back up!

After the power outage today. Continue reading

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NMR holiday hours

Chemistry NMR will be available 24/7 as usual and will be unstaffed Mon. 12/26, Thurs. 12/29 and Fri. 12/30. Continue reading

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I400 has a new printer, i500 gets the used one

The old Lexmark printer for the i400 has been replaced by a new HP Laserjet printer. The old printer is now installed on the i500 for light-duty jobs. Continue reading

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Room temperature back to normal

The Chemistry NMR lab was getting warm on Saturday due to a problem on the building temp control system for this area. The room temperature has been back to normal today. All spectrometers are operational. Continue reading

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