Group

Analyts, Analytical Targets

Analytical Method

Amino acids in food (protein bond and free amino acids, total)

Alanine (Ala), Arginine (ArG), Aspertic Acid (Asp), Cystine (Cys-Cys), Glutamic Acid (Glu), Glycine (Gly), Histidine (His), Isoleucine (Ile), Leucine (Leu), Lysine (Lys), Methionine (Met), Phenylalanine (Phe), Proline (Pro), Serine (Ser), Threonine (Thr), Tryptophan (Try), Tyrosine (Tyr), Valine (Val)

AOAC 994.12

Amino acids in supplement (free amino acids)

Alanine (Ala), Arginine (ArG), Aspertic Acid (Asp), Cystine (Cys-Cys), Glutamic Acid (Glu), Glycine (Gly), Histidine (His), Isoleucine (Ile), Leucine (Leu), Lysine (Lys), Methionine (Met), Phenylalanine (Phe), Proline (Pro), Serine (Ser), Threonine (Thr), Tryptophan (Try), Tyrosine (Tyr), Valine (Val)

Pre-column OPA derivatization HPLC

Free amino acids in food or supplement

Glycine, Alanine, Valine, Leucine, Isoleucine, Serine, Threonine, Aspartate, Glutamate, Asparagine, Histidine, Arginine, Lysine, Ormithine, Phenylalanine, Tyrosine, Tryptophan, Cysteine (total), Homocysteine (total), Taurine, Methionine

HPLC

Other

Acetyl-L-Carnitine

1H-NMR, 300 MHz

Acetyl Cysteine, N-Acetyl Cysteine

HPLC-RI

Alanine

Perchloric acid titration

Arginine

Perchloric acid titration  

Arginine-alpha-Ketoglutarate, L-Arginine-alpha-Keto-Glutarate

1H-NMR, 300 MHz

Arginine Hydrochloride

Spectrophotometric  

Aspartame, L-Aspartyl-L-phenylalanine methyl ester

Titration

Aspartame, in formulation

HPLC

Aspartic Acid

Titration; HPLC

Betaine Hydrochloride

Titration 

Choline Bitartrate

HPLC 

Choline Chloride

HPLC 

Creatine

HPLC

Lysine Acetate

Perchloric acid titration

Lysine Hydrochloride

Perchloric acid titration

Methionine

Perchloric acid titration

Phenylalanine

Perchloric acid titration

Selenomethionine

HPLC-UV 

Serine

Perchloric acid titration

Serotonine (5-HT), 5-Hydroxytryptamine

HPLC

Thiamine Hydrochloride

HPLC 

Thiamine Mononitrate

HPLC 

Threonine

Perchloric acid titration

Trypsin Inhibitor Activity

TIU Assay

Tryptophan, L-Tryptophan

Perchloric acid titration

Tyrosine

HPLC

Tyrosine

Perchloric acid titration