Isotope ratio measurements

Amino acids

[ring-13C6]phenylalanine	[2H5]phenylalanine	[1-13C;15N]leucine	[ring-13C6]tyrosine
2H4]tyrosine	[13C]ketoisocaproic acid	[15N]tyrosine	[1-13C]leucine
[15N]glutamate	[15N]glutamine	[15N]ornithine	[15N]aspartate
[15N]arginine	[15N]citrulline	[15N]proline	[15N]glycine
[15N]lysine	[15N]aminoadipic acid	[13C]aminoadipic acid

Glucose

[6,6-2H2]glucose

[1-13C]glucose

[U-13C]glucose

Lipids

[1-13C]octanoate	[U-13C]palmitate	[13C4]palmitate	[2H9]palmitate
[U-13C]linoleate	[U-13C]oleate	[2H5]glycerol	[U-13C]linoleoylcarnitine
[U-13C]palmitoylcarnitine	[13C4] palmitoylcarnitine	[U-13C] oleoylcarnitine	[U-13C]18C16-ceramide
[U-13C]18C18:1-ceramide

Cortisol

[2H4] cortisol	[2H3] cortisol	[4-13C] cortisol	[2H3] cortisone
[2H7] cortisone

Tricarboxylic acids

[13C]lactate	[13C]alanine	[13C]fumarate	[13C]succinate
[13C]alpha-ketoglutarate	[13C]malate	[13C]citrate	[13C]isocitrate
[13C]glutamine	[13C]glutamate

Isotopologues analysis

• Incorporation of ¹³C₆-glucose or ¹³C₆-glutamine into TCA analytes
• Incorporation of ¹³C₆-glucose into NEFA and sphingolipids analytes