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. 2003 May;84(5):3102–3110. doi: 10.1016/S0006-3495(03)70035-6

TABLE 2.

13C carbonyl chemical shifts from CP/MAS

Temperature (°C)
Lipid 25 35 45
SM 174.81 174.95 175.01
HSM 175.26 175.41 Peak not well resolved
SM + cholesterol* 175.27 175.21 175.15
HSM + cholesterol* 175.85 175.73 175.70
*

Phospholipid to cholesterol, 1:1 molar ratio.