No method is available to identify each of the peaks for this product. Contact the regional Technical Service group for assistance with identifying chromatographic peaks according to specific analytical techniques.
AAS18
Amino Acid Standard
Amino Acid Standard
analytical standard
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5 ML
$87.50
10 ML
$145.00
10 X 1 ML
$170.00
5 X 5 ML
$390.00
Seleccione un Tamaño
Cambiar Vistas
5 ML
$87.50
10 ML
$145.00
10 X 1 ML
$170.00
5 X 5 ML
$390.00
About This Item
UNSPSC Code:
85151701
eCl@ss:
32160406
NACRES:
NA.24
Productos recomendados
grade
analytical standard
shelf life
limited shelf life, expiry date on the label
analyte chemical class(es)
amino acids, peptides, proteins
technique(s)
HPLC: suitable
gas chromatography (GC): suitable
application(s)
food and beverages
format
multi-component solution
storage temp.
2-8°C
Categorías relacionadas
Application
This analytical standard was used as follows:
- Determination of L- and D-amino acids and glycine by liquid chromatography-tandem mass spectrometry (LC-MS/MS) following their derivatization with chiral Marfey’s reagent
- High-performance liquid chromatography (HPLC) based amino acid analysis during the characterization of defatted rice bran (DRB) protein concentrate to evaluate its iron binding ability
- Development of a gas chromatography-mass spectrometry (GC-MS) procedure for the profiling of 112 amino-carboxylic metabolites in human urine samples using 1,1,1,2,2,3,3-heptafluorobutyl chloroformate for derivatization and liquid-liquid microextraction for sample treatment
- Non-enantiomeric detection and quantification of amino acids in their various forms— free, dissolved, particulate, and total, in natural water samples by HPLC coupled with fluorescence detection using a C18 column
Packaging
1 mL size packaged in flame sealed ampules.
Components
The following components are included in the amino acid standard:
- L-Alanine
- Ammonium chloride
- L-Arginine
- L-Aspartic acid
- L-Cystine
- L-Glutamic acid
- Glycine
- L-Histidine
- L-Isoleucine
- L-Leucine
- L-Lysine
- L-Methionine
- L-Phenylalanine
- L-Proline
- L-Serine
- L-Threonine
- L-Tyrosine
- L-Valine
Other Notes
Amino acids in this standard are 2.5 μmoles per mL in 0.1 N HCl, except L-cystine at 1.25 μmoles per mL.
related product
Referencia del producto
Descripción
Precios
signalword
Warning
hcodes
pcodes
Hazard Classifications
Met. Corr. 1
Storage Class
8B - Non-combustible corrosive hazardous materials
wgk_germany
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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Certificados de análisis (COA)
Lot/Batch Number
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Some insects rely on the strategy of freeze tolerance for winter survival. During freezing, extracellular body water transitions from the liquid to the solid phase and cells undergo freeze-induced dehydration. Here, we present results of a thermal analysis (from differential
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Is there a recommended HPLC method and associated chromatogram to allow identification of each of the peaks and quantification of each amino acid in a sample (by retention time/integration)?
1 answer-
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
Helpful?
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdfHelpful?
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What is the difference between AAS18 and 79248 (CRM)? What are the storage and shipping conditions? How does the quality of AAS18 compare to CRM?
1 answer-
AAS18 is stored at 2-8°C, while 79248 is stored at -20°C. Both are shipped at ambient temperature. Amino Acid 79248 is a CRM, Certified Reference Material, and AAS18 is a standard. AAS18 does not undergo the rigorous testing that is used for CRM standards.
Helpful?
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Wie lange ist der AAS18 Aminosäuren Standard haltbar, wenn er bei Temperaturen von 2-8°C gelagert wird?
1 answer-
The expiration date of this product is listed on the lot-specific Certificate of Analysis.
Please access the link below to download a Certificate:
https://www.sigmaaldrich.com/product/sial/aas18#product-documentationHelpful?
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