Description
Perfluoro-n-heptanesulfonic acid est un composé de référence PFAS à chaîne plus longue avec le numéro CAS 375-92-8 et la formule empirique C₇HF₁₅O₃S. Avec une masse molaire de 450.12 g/mol, il complète des étalons de perfluoroalkanesulfonic acid plus courts dans des jeux d'étalonnage multi-analytes pour la chromatographie. La substance est fournie dans une ampoule en verre de 50 mg, permettant aux laboratoires de préparer des stocks concentrés et des dilutions en série pour des dosages quantitatifs ciblés par LC–MS, GC et méthodes apparentées. Il est utilisé dans la surveillance environnementale, les études de résidus de produits et la validation de méthodes où C₇ sulfonic acid doit être séparé des homologues PFAS voisins. Proposé du fabricant Carl ROTH pour un usage analytique et de recherche, le matériau est répertorié sous le numéro EG 206-800-8. Le conditionnement en ampoule facilite le stockage sûr de l'étalon pur et la pesée précise de petites portions lors de l'établissement de courbes d'étalonnage de travail et d'échantillons de contrôle qualité.
Compliance & Safety Information
Danger
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Perfluoro-n-heptanesulfonic acid, 50 mg, ampoule en verre
What is this article?
Perfluoro-n-heptanesulfonic acid, 50 mg, ampoule en verre is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Solvants de qualité HPLC & LC-MS, inside Solvants, in Produits chimiques.
HPLC grade limits the absorbance and the residue that would appear as peaks or baseline drift. LC-MS grade goes further on metal ions and on particles that would suppress a mass spectrum. A solvent that is only analytical grade is a false economy on an LC-MS system.
A solvent dissolves. The grade says which impurities are low enough for the method. Analytical grade is the ordinary pure solvent. HPLC and LC-MS grades limit the absorbance and the ions that would become peaks or background. A dry solvent has had water removed. A deuterated solvent is for NMR, where the hydrogen signal would otherwise drown the sample. Technical grade is for cleaning and for synthesis that does not need a chromatogram. Identity is on PubChem. Names follow IUPAC. Hazards follow ECHA, the CLP Regulation and REACH.
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The category is Solvants. The sub-category is Solvants de qualité HPLC & LC-MS. The catalogue is Produits chimiques.
Shelves beside this one are Solvants de qualité analytique (p.a.), Solvants secs & deutérés (NMR, synthèse), Solvants de qualité technique & synthèse and Solvants verts & alternatifs.
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