What is the primary reason why TMS is used as a reference material in 1H NMR spectroscopy?
A. TMS absorbs upfield well away from most other protons, so it does not interfere with the signals from the sample.
B. TMS is soluble in water, so it can easily be used to prepare samples for NMR analysis.
C. TMS has a strong single signal in its 1H NMR spectrum due to all twelve protons being in the same chemical environment.
D. TMS is very unreactive, so it does not interfere with the sample being analyzed.
Answer:C
What is the primary reason why TMS is used as a reference material in 1H NMR spectroscopy?
A. TMS absorbs upfield well away from most other protons, so it does not interfere with the signals from the sample. B. TMS is soluble in water, so it can easily be used to prepare samples for NMR analysis. C. TMS has a strong single signal in its 1H NMR spectrum due to all twelve protons being in the same chemical environment. D. TMS is very unreactive, so it does not interfere with the sample being analyzed.