| CAS Number | 54-12-6 |
|---|---|
| Molecular Formula | C11H12N2O2 |
| Molecular Weight | 204.230 g/mol |
| InChI Key | QIVBCDIJIAJPQS-UHFFFAOYSA-N |
| LogP | -1.05 |
| Synonyms |
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Applications:
HPLC Separation of Amino Acids, Bases, Acids, and Neutrals on Obelisc R
| Column | Obelisc R, 4.6x250 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O - 35/65% |
| Buffer | AmAc 10 mM pH 4.0 |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 250 nm |
| Class of Compounds | Drug, Acid, Bases, Neutral, Hydrophilic, Ionizable, Vitamin, Supplements, Amino acid |
| Analyzing Compounds | Amino acids |
Application Analytes:
2,6-Lutidine
Benzoic Acid
Benzonitrile
Benzylamine
Phenol
Phenylalanine
Pyridine
Toluene
Tryptophan
HPLC Separation of Amino Acids on Obelisc R Column
Closely related compounds like amino acids can be separated on an Obelisc R column by various buffers depending on the amount of baseline separation required. By choosing different buffers, the separation between compounds can be adjusted based on application needs, especially those that require low organic concentration in the mobile phase. UV detection at 250nm.
| Column | Obelisc R, 4.6x250 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O - 5/95% |
| Buffer | AmFm |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 250 nm |
| Class of Compounds | Drug, Acid, Hydrophilic, Ionizable, Vitamin, Supplements, Amino acid |
| Analyzing Compounds | Amino acids |
Application Analytes:
3-Aminobenzoic Acid
Aspartame
Phenylalanine
Tryptophan
HPLC Separation of Phenylalanine, Glucosamine, and Tryptophan on Mixed-Mode Column
The Separation of Phenylalanine, Glucosamine and Tryptophan demonstrates how the small changes to the organic and/or buffer concentrations in the mobile phase affect the retention of compounds on a mixed-mode column by hydrophobic, ion-exchange and ion-exclusion mechanisms in reverse-phase HPLC chromatography. Evaporative Light Scattering Detector (ELSD) used
| Column | Primesep 100, 2.1x100 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O |
| Buffer | AmFm |
| Flow Rate | 0.25 ml/min |
| Detection | ELSD |
| Class of Compounds | Drug, Acid, Hydrophilic, Ionizable, Vitamin, Supplements, Amino acid |
| Analyzing Compounds | Phenylalanine, Glucosamine, Tryptophan |
Application Analytes:
Glucosamine
Phenylalanine
Tryptophan
Generic Screening Method for Complex Mixtures
| Column | Primesep 200, 4.6*150 mm 5 µm, 100A |
| Mobile Phase | MeCN/H2O |
| Buffer | H2SO4 |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 215 nm |
| Class of Compounds | Drug, Acid, Hydrophilic, Ionizable, Hormone |
| Analyzing Compounds | Uracil, Epinephrine, DOPA, 2,6-Lutidine, Benzylamine, Hydroxytrypthophan, Homovanillic acid, Phenol, Tryptophan , 2,3-DHBA, Benzoic acid, Methylparaben, Ethylparaben, Toluene, Amitriptyline |
Application Analytes:
2,3-Dihydroxybenzoic Acid
2,6-Lutidine
Amitriptyline
Benzoic Acid
Benzylamine
DOPA (3,4-dihydroxy-L-phenylalanine)
Epinephrine
Ethyl Paraben
Homovanillic Acid
Hydroxytryptophan
Methylparaben
Phenol
Toluene
Tryptophan
Uracil
HPLC Separation of Mixture of Essential Amino Acids on Primesep 100 Column
| Column | Primesep 100, 4.6x250 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O - 25/75% |
| Buffer | Gradient H2SO4 0.05-0.2% 25 min |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 200 nm |
| Class of Compounds | Drug, Acid, Hydrophilic, Ionizable, Vitamin, Supplements, Amino acid |
| Analyzing Compounds | L-Threonine (Thr/T), L-Valine (Val/V), DL-Methionine (Met/M), L-Isoleucine (Ile/I), L-Leucine (Leu/L), L-Phenylalanine (Phe/F), L-Histidine (His/H), L- Tryptophan (Trp/W) |
Application Analytes:
Amino Acids
D-Isoleucine
D-Leucine
D-Valine
DL-Isoleucine
Histidine
Isoleucine
L-Histidine hydrochloride monohydrate
L-Isoleucine
L-Methionine
Methionine
Phenylalanine
Tryptophan
Valine
HPLC Separation of Mixture of 12 Amino Acids on Primesep 100 Column
| Column | Primesep 100, 4.6x250 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O - 35/65% |
| Buffer | H2SO4 0.05% 12 min hold, gradient 0.05-0.20, 13 min |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 200 nm |
| Class of Compounds | Drug, Acid, Hydrophilic, Ionizable, Vitamin, Supplements, Amino acid |
| Analyzing Compounds | L-Asparagine (Asn/N), L-Threonine (Thr/T), L-Cysteine (Cys/C), L-Proline (Pro/P), L-Valine (Val/V), DL-Methionine (Met/M), L-Isoleucine (Ile/I), L-Leucine (Leu/L), L-Phenylalanine (Phe/F), L- Tryptophan (Trp/W), L-Histidine (His/H), L-Arginine (Arg/R) |
Application Analytes:
Amino Acids
Arginine
Asparagine
Cysteine
D-Isoleucine
D-Leucine
D-Valine
DL-Isoleucine
Histidine
Isoleucine
L-Cysteine
L-Methionine
Leucine
Methionine
Phenylalanine
Proline
Tryptophan
Valine