Beschrijving
Perfluoro-n-heptanesulfonic acid is een PFAS-referentieverbinding met langere keten met CAS-nummer 375-92-8 en empirische formule C₇HF₁₅O₃S. Met een molaire massa van 450.12 g/mol vult het kortere perfluoroalkanesulfonic acid-standaarden aan in multi-analietkalibratiesets voor chromatografie. De stof wordt geleverd in een glazen ampul van 50 mg, zodat laboratoria geconcentreerde stocks en seriële verdunningen kunnen bereiden voor kwantitatieve LC–MS, GC en verwante gerichte assays. Het wordt toegepast bij milieumonitoring, studies naar productresiduen en methodevalidatie waarbij C₇ sulfonic acid moet worden gescheiden van naburige PFAS-homologen. Aangeboden van fabrikant Carl ROTH voor analytisch en onderzoekgebruik, staat het materiaal vermeld onder EG-nummer 206-800-8. Ampulverpakking vergemakkelijkt veilige opslag van de zuivere standaard en nauwkeurig wegen van kleine porties bij het opbouwen van werkkalibratiecurves en kwaliteitscontrolemonsters.
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Questions about Perfluoro-n-heptanesulfonic acid, 50 mg, glazen ampul
What is this article?
Perfluoro-n-heptanesulfonic acid, 50 mg, glazen ampul is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Oplosmiddelen van HPLC- & LC-MS-kwaliteit, inside Oplosmiddelen, in Chemicaliën.
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 Oplosmiddelen. The sub-category is Oplosmiddelen van HPLC- & LC-MS-kwaliteit. The catalogue is Chemicaliën.
Shelves beside this one are Oplosmiddelen van analytische kwaliteit (p.a.), Droge & gedeutereerde oplosmiddelen (NMR, synthese), Oplosmiddelen van technische & synthesekwaliteit and Groene & alternatieve oplosmiddelen.
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