Description
PCB 18 is a trichlorobiphenyl congener supplied as a ROTI®Star analytical reference material for environmental and chromatographic laboratories. Characterised by CAS number 37680-65-2 and empirical formula C₁₂H₇Cl₃, it has a molar mass of 257,54 g/mol. The product is packed as 25 mg of neat solid in glass, giving a convenient working quantity for stock-solution preparation, calibration series and spiking experiments in gas chromatography and GC-MS. Defined single-congener PCB standards are essential when laboratories must identify and quantify individual polychlorinated biphenyls in soil, water, sediment, biota or industrial samples, and when method validation or quality-control protocols demand traceable reference points. This PCB 18 material comes from manufacturer Carl ROTH as part of the ROTI®Star portfolio aimed at demanding analytical applications. It supports accurate retention-time matching and quantitative reporting of specific PCB congeners instead of unresolved technical mixtures. Use exclusively in appropriately equipped laboratories, observing containment measures and personal protective equipment consistent with UN number 3432 classification and the safety data provided for this chlorinated aromatic compound.
This article is part of ICP, AAS & ion standards, in Analytical standards & reference materials.
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Questions about PCB 18, ROTI®Star, 25 mg, glass
What is this article?
PCB 18, ROTI®Star, 25 mg, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in ICP, AAS & ion standards, inside Analytical standards & reference materials, in Lab chemicals.
An ICP, AAS or ion standard is a solution of a stated element or ion at a stated concentration, with an uncertainty. It is the calibration point of a spectrometer or an electrode. The matrix, often dilute acid, has to match the method. A standard past its expiry is not that concentration.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
Which category should I open next?
The category is Analytical standards & reference materials. The sub-category is ICP, AAS & ion standards. The catalogue is Lab chemicals.
Shelves beside this one are Chromatography standards (GC, HPLC, pesticides), Reference substances & reagents (other), Volumetric standard solutions (titration), Reagents for analysis (Ph. Eur., ASTM, DIN), Spectroscopy & physical property standards and Indicators & indicator solutions.
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When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

