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MilliporeSigma

A9781

Supelco

Amino acid standards for protein hydrolysates

analytical standard

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5 ML
$171.00

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5 ML
$171.00

About This Item

UNSPSC Code:
85151701
eCl@ss:
32160406
NACRES:
NA.24

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$171.00


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Request a Bulk Order
Technical Service
Need help? Our team of experienced scientists is here for you.
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grade

analytical standard

composition

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-Tryosine
L-Tryptophan
L-Valine

analyte chemical class(es)

amino acids, peptides, proteins

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

color

colorless

application(s)

food and beverages

format

neat

storage temp.

2-8°C

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This Item
A2908AAS18A6282
format

neat

format

neat

format

multi-component solution

format

neat

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

grade

analytical standard

grade

analytical standard

grade

analytical standard

grade

analytical standard

composition

L-Alanine

composition

-

composition

-

composition

-

analyte chemical class(es)

amino acids, peptides, proteins

analyte chemical class(es)

amino acids, peptides, proteins

analyte chemical class(es)

amino acids, peptides, proteins

analyte chemical class(es)

amino acids, peptides, proteins

color

colorless

color

-

color

-

color

colorless

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Other Notes

Amino acids listed are 0.5 μmole/mL except L-cystine at 0.25 μmole/mL in 0.2 N sodium citrate, pH 2.2.

Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Certificates of Analysis (COA)

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Questions

1–5 of 5 Questions  
  1. I am looking for the amino acid's solution for HPLC in diagnostic lab as a QC. The mixture approximately contains approx. 40amino acid and concentration is 2.5mM or higher than that

    1 answer
    1. This product contains 19 amino acids, each at a concentration of 0.5 mM, except for L-cystine, which is at 0.25 mM. This is less than the required concentration and with fewer analytes. Contact the technical service group in the region for assistance in finding a suitable standard for the application.

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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?

  3. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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.pdf

      Helpful?

  4. Good afternoon. I am searching for a mixture of aminoacids to built method in HPLC to identify several amino acids. I need to know their concentration in the mixture to construct a calibration curve. Will this the best option? thanks

    1 answer
    1. Amino Acids Mix Solution - 79248-5X2ML is suitable for this application. The COA can be found here, https://www.sigmaaldrich.com/certificates/Graphics/COfAInfo/fluka/pdf/PDF746486.pdf.

      Helpful?

  5. A9781 is it suitable for PDA detector HPLC

    1 answer
    1. Product A9781-5ML is suitable for HPLC analysis. While the analysis of amino acids using a PDA/UV requires a lot of steps, it is still possible and practical. However, most HPLC methods for amino acid quantification uses Mass Spectrometry (MS) or Charged Aerosol Detector (CAD) detectors.

      Helpful?

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