Figure S5. The 1H-NMR spectra of phosphoric acid (85%) in d-methanol with 0.03% TMS. No impurities were found

From

Introducing NMR to Biomedical Laboratory Scientists through a Laboratory Exercise; Synthesis, Structure Determination and Quantization of Aspirin by Employing an 1H-NMR Bench Top Instrument

Marit Kristin Leiren, Signe Steinkopf

World Journal of Chemical Education. 2022, 10(1), 8-19 doi:10.12691/wjce-10-1-2