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CRM47791

Supelco

Linoleic Acid Methyl Ester Mix

cis/trans, certified reference material, 10 mg/mL in dichloromethane

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1 ML
450,00 zł

450,00 zł

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Wszystkie zdjęcia(1)

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Zmień widok
1 ML
450,00 zł

About This Item

Numer WE:
200-838-9
Kod UNSPSC:
85151701
NACRES:
NA.24

450,00 zł

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klasa czystości

certified reference material
TraceCERT®

Poziom jakości

300

linia produktu

TraceCERT®

Formularz

liquid

Certyfikat analizy

current certificate can be downloaded

opakowanie

ampule of 1 mL

stężenie

10 mg/mL in dichloromethane

metody

HPLC: suitable
gas chromatography (GC): suitable

Zastosowanie

food and beverages

Format

single component solution

grupa funkcyjna

carboxylic acid
ester

temp. przechowywania

-10 to -25°C

Powiązane kategorie

Opis ogólny

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Zastosowanie

The CRM has been used as follows:

  • To study the retention of two FAME mixtures on three types of available commercial capillary columns having different polarities for developing a gas chromatography-mass spectrometry (GC-MS) based method to separate geometrical isomers of polyunsaturated fatty acids (PUFAs)
  • Development and validation of a GC-MS method to simultaneously determine C18 fatty acids in 20 raw milk and 30 commercial milk samples
  • Identification of fatty acid methyl ester peaks in the GC-MS analysis of C18 fatty acids in milk samples to evaluate the hydrogenation of α-Linolenic acid in the rumen of dairy cows
  • Determination of fatty acids following their methyl esterification in goat milk samples by gas chromatography coupled to a flame ionization detector (GC-FID) in the study to investigate the effect of production systems on the fatty acid composition of goat milk
  • GC-FID analysis of typical Indian ready-made snacks to determine their fatty acid composition based on Association of Official Analytical Chemists (AOAC) Official Method 996.06
  • To study the fatty acid profile of 69 different cold-pressed vegetable oil samples by gas chromatography coupled to a flame ionization detector

Inne uwagi

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

Informacje prawne

TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany
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Analit

Opis
    cis-9,cis-12-Octadecadienoic acid methyl ester 10 % (w/w)
    cis-9,trans-12-Octadecadienoic acid methyl ester 20 % (w/w)
    trans-9,cis-12-Octadecadienoic acid methyl ester 20 % (w/w)
    trans-9,12-Octadecadienoic acid methyl ester 50 % (w/w)

Piktogramy

Health hazardExclamation mark
GHS08,GHS07

Hasło ostrzegawcze

Warning

Zwroty wskazujące rodzaj zagrożenia

H315,H319,H336,H351

Klasyfikacja zagrożeń

Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organy docelowe

Central nervous system

Kod klasy składowania

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Klasa zagrożenia wodnego (WGK)

WGK 2

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Wykazy regulacyjne

Wykazy regulacyjne dotyczą głównie produktów chemicznych. Można w nich podawać ograniczoną liczbę informacji na temat produktów niechemicznych. Brak wpisu oznacza, że żaden ze składników nie znajduje się w wykazie. Użytkownik odpowiada za zagwarantowanie bezpiecznego i zgodnego z prawem stosowania produktu.

EU REACH Annex XVII (Restriction List)

CAS No.

Wybierz jedną z najnowszych wersji:

Certyfikaty analizy (CoA)

Lot/Batch Number

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Masz już ten produkt?

Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Daniel Enriquez-Hidalgo et al.
Frontiers in veterinary science, 7, 576944-576944 (2020-12-18)
The winter diet of dairy cows in Mediterranean climate regions is usually a total mixed ration with a base of conserved summer crops such as corn silage and alfalfa hay. However, there is increased labor and financial cost related to
Arkadiusz Szterk et al.
Foods (Basel, Switzerland), 11(8) (2022-04-24)
The study aimed to examine samples of different market original sheep cow and goat cheeses, in respect of the content and profile of FA with special emphasis on health-promoting FA. The content of fatty acids in the examined cheeses was

Questions

1–3 of 3 Questions  

  1. 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?

  2. 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?

  3. How is the standard prepared for injection into a gas chromatograph ?

    1 answer

    1. This product is provided as a ready-to-use solution, at a nominal concentration of 10 mg/mL, so no further preparation is necessary. The typical injection volume for the GC is 1 microliter.

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