| CAS Number | 73-32-5 |
|---|---|
| Molecular Formula | C6H13NO2 |
| Molecular Weight | 131.176 |
| InChI Key | AGPKZVBTJJNPAG-WHFBIAKZSA-N |
| LogP | -1.72 |
| Synonyms |
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Applications:
HPLC Separation of Mixture of Nine Essential Amino acids and Arginine on Newcrom AH Column
September 25, 2020
Essential amino acids cannot be made by the body. As a result, they must come from food.
The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
| Column | Newcrom AH, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN – 5% |
| Buffer | Gradient Formic Acid – 3-9%, 20 min |
| Flow Rate | 1.0 ml/min |
| Detection | CAD |
| 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), Lysine (Lys/K) , L- Tryptophan (Trp/W), L-Arginine (Arg/R) |
Application Column
Newcrom AH
The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.
Select optionsHistidine
Isoleucine
L-Threonine
Leucine
Lysine
Methionine
Phenylalanine
Tryptophan
Valine
HPLC Separation of Allo-Isoleucine, Isoleucine, Leucine on Primesep 100 Column
November 12, 2019
| Column | Primesep 100, 4.6×250 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O – 5/95% |
| Buffer | AmFM pH 3.0 – 30 mM |
| Flow Rate | 1.0 ml/min |
| Detection | CAD (Corona) MS- compatible mobile phase |
| Class of Compounds |
Drug, Acid, Hydrophilic, Ionizable, Vitamin, Supplements, Amino acid |
| Analyzing Compounds | Allo-Isoleucine, Isoleucine, Leucine |
Application Column
Primesep 100
The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.
Select optionsD-Leucine
DL-Isoleucine
Isoleucine
L-Alloisoleucine
L-Isoleucine
Leucine
allo-D-isoleucine
HPLC Separation of Mixture of 12 Amino Acids on Primesep 100 Column
March 11, 2019
| Column | Primesep 100, 4.6×250 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 Column
Primesep 100
The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.
Select optionsArginine
Asparagine
Cysteine
D-Isoleucine
D-Leucine
D-Valine
DL-Isoleucine
Histidine
Isoleucine
L-Cysteine
L-Methionine
L-Threonine
Leucine
Methionine
Phenylalanine
Proline
Tryptophan
Valine
HPLC Separation of Mixture of Essential Amino Acids on Primesep 100 Column
March 11, 2019
| Column | Primesep 100, 4.6×250 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 Column
Primesep 100
The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.
Select optionsD-Isoleucine
D-Leucine
D-Valine
DL-Isoleucine
Histidine
Isoleucine
L-Histidine hydrochloride monohydrate
L-Isoleucine
L-Methionine
L-Threonine
Methionine
Phenylalanine
Tryptophan
Valine
Separation of allo-D-isoleucine and L- Isoleucine on Primesep 100
March 20, 2018
| Column | Primesep 100, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O |
| Buffer | TFA, FA |
| Flow Rate | 1.0 ml/min |
| Detection | CAD (Corona) MS- compatible mobile phase |
| Class of Compounds |
Drug, Acid, Hydrophilic, Ionizable, Vitamin, Supplements, Amino acid |
| Analyzing Compounds | Allo-Isoleucine, Isoleucine, Leucine |
Application Column
Primesep 100
Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A
L-Isoleucine
allo-D-isoleucine
HPLC Separation of Amino Acids in Zero Organic Mode on Primesep 200 column
July 8, 2011
Essential and non-essential amino acids can be retained and separated in zero-organic mode on Primesep mixed-mode HPLC columns. Zero-organic mode is required to monitor isotopes of carbon. Amino acids are retained by combination of reversed-phase and cation-exchange mechanisms. At lower pH, some of the amino acids are more hydrophobic. Buffer pH will affect ionization state of amino acids, and at higher pH (above 2.5), the amino acids will be less hydrophobic and retentive in zero-organic mode. Amino acids can be monitored by low UV. Method can be used in archeological research for analysis of various molecules where presence of organic component of the mobile phase interferes with analysis.
| Column | Primesep 200, 4.6×250 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O |
| Buffer | Na2HPO4 |
| Flow Rate | 1.0 ml/min |
| Detection | UV 210 nm |
| Class of Compounds |
Drug, Acid, Hydrophilic, Ionizable, Vitamin, Supplements |
| Analyzing Compounds | Valine, Leucyne, Isoleycine, Tyrosine, Phenylalanine, Histidine, Lysine |
Application Column
Primesep 200
The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.
Select optionsIsoleucine
Leucine
Lysine
Phenylalanine
Tyrosine
Valine
Amino Acids Analysis in Acid Gradient Condition
September 18, 2006
11 underivatized amino acids (aspartic acid, glutamic acid, alanine, valine, methionine, isoleucine, cysteine, phenylalanine, histidine, lysine, and arginine) are separated by a Primesep 100 HPLC column by reversed-phase and ion-exchange mechanisms with LC/MS compatible conditions without the use of ion-pair reagents. The HPLC separation uses a TFA (trifluoroacetic acid) gradient in a mobile phase of water acetonitrile (MeCN, ACN with evaporative light scattering detection (ELSD).
| Column | Primesep 100, 4.6×250 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O – 30/70% |
| Buffer | TFA , gradient 0.05-0.3 % , 25 min |
| Flow Rate | 1.0 ml/min |
| Detection | ELSD |
| Class of Compounds |
Drug, Acid, Hydrophilic, Ionizable, Vitamin, Supplements |
| Analyzing Compounds | Aspartic acid, Glutamic acid, Alanine, Valine, Methionine, Isoleucine, Cysteine, Phenylalanine, Histidine, Lysine, Arginine |
Application Column
Primesep 100
The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.
Select optionsAmino Acids
Arginine
Aspartic Acid
Cysteine
Glutamic Acid
Histidine
Isoleucine
Lysine
Methionine
Phenylalanine
Valine
HPLC Separation of Amino Acids in Supplements Capsules
April 10, 2005
Glutamine, valine, isoleucine, and leucine are baseline resolved in a dietary supplement with a mobile phase of acetonitrile, water, and sulfuric acid with ultraviolet (UV) detection at 210 nm on a Primesep 100 column. Increasing the sulfuric acid concentration allows elution of arginine. Primesep 100 separates underivatized amino acids and amines by combining reversed-phase and ion-exchange mechanisms. The HPLC separation uses a mobile phase of water, acetonitrile (MeCN, ACN), and sulfuric acid with ultraviolet (UV) detection at 210 nm.
| Column | Primesep 100, 4.6×250 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O – 30/70% |
| Buffer | H2SO4 |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 210 nm |
| Class of Compounds |
Drug, Acid, Hydrophilic, Ionizable, Vitamin, Supplements, Amino acid |
| Analyzing Compounds | Arginine, Glutamine, L-Valine (Val/V), L-Isoleucine (Ile/I), L-Leucine (Leu/L) |
Application Column
Primesep 100
The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.
Select optionsGlutamine
Isoleucine
Leucine
Valine
