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
57328-U
SPME Fiber Assembly
DVB/CAR/PDMS, for use with manual holder, Nitinol-core (NIT), 24 ga, 50 μm (DVB layer), 30 μm (CAR/PDMS layer)
Synonyme(s) :
FIBRE SPME StableFlex™1CM, PK3, MANUEL, DVB/CARBOXEN-PDMS 50/30UM
About This Item
Produits recommandés
Nom du produit
Ensemble de fibres de SPME, divinylbenzène/carboxène/polydiméthylsiloxane (DVB/CAR/PDMS), 50/30µm DVB/CAR/PDMS, StableFlex (1cm), needle size 24 ga, Manual Holder, pk of 3, plain gray hub
Matériaux
StableFlex fiber
plain gray hub
Niveau de qualité
Taille de l'aiguille
24 ga
Conditionnement
pk of 3
Caractéristiques du produit alternatif plus écologique
Waste Prevention
Safer Solvents and Auxiliaries
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30 μm (CAR/PDMS layer)
50 μm (DVB layer)
Technique(s)
solid phase microextraction (SPME): suitable
L des fibres
1 cm
Groupe de la matrice active
50/30µm DVB/CAR/PDMS
DVB/CAR/PDMS coating
Application(s)
food and beverages
Compatibilité
Manual Holder
for analyte group flavors (volatiles and semivolatiles, C3-20) (MW 40-275)
Autre catégorie plus écologique
, Aligned
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Description générale
Application
Autres remarques
Note de bas de page
Informations légales
Code de la classe de stockage
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
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Certificats d'analyse (COA)
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Protocoles
High performance, reliability, and reproducibility of HS-SPME in combination with GC/MS for the determination of VOCs in water was proven in an interlaboratory trial. The new ISO 17943 using HS-SPME is an improvement on existing official methods for this determination in terms of sensitivity and selectivity.
Les hautes performances, la fiabilité et la reproductibilité de la HS-SPME associée à la GC/MS pour la détermination des COV dans l'eau ont été prouvées dans un essai interlaboratoires. La nouvelle norme ISO 17943, basée sur la HS-SPME, constitue une amélioration des méthodes officielles existantes dédiées à cette détermination en termes de sensibilité et de sélectivité.
Separation of various pyrazines and sulfur compounds including carbon disulfide and dimethyl disulfide.
Chromatograms
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfUtile ?
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Is it recommended to use water or water-soluble solvents to clean the SPME fiber DVB/CAR/PDMS?
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For cleaning the SPME fiber DVB/CAR/PDMS, it is recommended to use a mixture of water and a water-miscible solvent. Cleaning for a duration of 15-30 minutes should be sufficient. It is important to keep in mind that there may be septum pieces on the inlet, which can result in septum bleeding and the presence of peaks in the chromatogram.
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I want to measure the aromatic substances in cider, is this the right one to use? Or should I use the 2cm.
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Molecular weight, volatility, and polarity play a role in selecting the appropriate SPME fiber. See the SPME selection guide at the link below:
https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/analytical-chemistry/solid-phase-microextraction/selecting-spme-fibersFor additional questions or concerns, please navigate to the link https://www.sigmaaldrich.com/techservice, and click on "Product Technical Inquiries" under the Products Section with all the required information so that a member of the Technical Service team can reach out to assist further. Thank you.
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