Highlights
The high-purity amino acids of Standard H are ideal for calibrating amino acid analyzers. To permit standardization of microbiological and other assays, we have used the L-form configuration. The molar concentration of each standard is verified by conventional amino acid analysis methods.
The following amino acids are included in Amino Acid Standard H. Each amino acid is supplied at a concentration of 2.5 µmoles/ml of 0.1 N HCl, except for L-cystine, which is supplied at 1.25 µmoles/ml.
- L-Alanine
- Ammonia ([NH4]2SO4)
- L-Arginine
- L-Aspartic Acid
- L-Cystine
- L-Glutamic Acid
- Glycine
- L-Histidine
- L-Isoleucine
- L-Leucine
- L-Lysine•HCl
- L-Methionine
- L-Phenylalanine
- L-Proline
- L-Serine
- L-Threonine
- L-Tyrosine
- L-Valine
Instructions for Use
Thaw Standard H and shake well. Dilute appropriately with suitable buffers to a concentration compatible with the full-scale sensitivity of your amino acid analyzer.
Storage
When kept frozen, an unopened vial has an indefinite storage life. Once the seal is broken, the reagent has a maximum storage life of six months. Store Amino Acid Standard H frozen between uses.
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