102 Results for: "Perchloric Acid"

The Hellma® calibration standards comply with all necessary standards and regulations and thus offer the highest quality for recalibrating your spectrometer.

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VWR®, UV/Visible spectroscopy linearity standards at 235, 257, 313 and 350 nm

Supplier: VWR Chemicals

Linearity standards packed in permanently sealed UV cuvettes or 100 ml amber bottles.

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Certified colour reference standards for spectrophotometers

Supplier: Thermo Fisher Scientific

These colour reference standards can be used with UV-Vis spectroscopy.

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UV-Vis certified calibration standards

Supplier: VARIAN

These UV-Visible calibration standards and kits provide an inexpensive and time-saving solution for calibrating and qualifying UV-Vis instrumentation.

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Holmium perchlorate solution Reag. Ph. Eur. 1043101

Supplier: VWR Chemicals

Starting materials: Holmium oxide R/ perchloric acid

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PERCHLORIC ACID IN ACETIC ACID 0.5 MOL/L 1 * 1 L

Supplier: Avantor

PERCHLORIC ACID IN ACETIC ACID 0.5 MOL/L 1 * 1 L

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Perchloric Acid 60-62% Drum Emptied and Unwashed 1 * 1 items

Supplier: VWR Chemicals

Perchloric Acid 60-62% Drum Emptied and Unwashed 1 * 1 items

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Scrubbers for Kjeldahl mineralisation units

Supplier: GERHARDT

The Turbosog scubber unit condenses and neutralises aggressive acid vapours from the Kjeldahl digestion, including perchloric acid and other toxic gases.

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UV-Vis wavelenth standard

Supplier: MICROSOLV

Wavelength calibration standard solution for UV-Vis detectors is composed of 4% Holmium oxide in 10% Perchloric acid.

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For use with Basic™ 47, Basic 70, Fiberglass 30, Protector® XStream®, Protector Premier™, Protector ClassMate®, Protector PVC perchloric acid, protector stainless steel perchloric acid, logic+, logic, cell logic, puriCare procedure stations and protector radioisotope laboratory hoods.

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Reference materials, base number standards, in hydrocarbon oil

Supplier: LGC Standards PROMOCHEM

These reference materials are intended for use in the determination of base number (AN) in petroleum products in accordance with ASTM D2896/IP 276 (by potentiometric perchloric acid titration) or ASTM D4739 (by potentiometric titration).

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Cetrimonium bromide ≥98% for molecular biology

Supplier: MP Biomedicals

Cetyltrimethylammonium bromide is a phase transfer catalyst ideal for the precipitation of DNA. Hexadecyltrimethylammonium bromide is a bactericidal, cationic detergent. Its activity is neutralized by soaps and anionic detergents (i.e., SDS). Trimethylammonium bromide compounds form insoluble complexes with SDS. It is active at alkaline pH against both Gram positive and Gram negative organisms.

Cetyltrimethylammonium bromide ia used as an cationic surfactant suitable for the isolation of high molecular weight DNA in plants and other organisms(by a rapid method) as well as plant DNA for use in PCR analysis. It has been used to precipitate nucleic acids. CTAB provides enhancement of Concanavalin A mediated agglutination. It has been used for the determination of protein molecular weights in electrophoretic systems and for determination of critical micelle concentration of detergents. CTAB has also been used as a titrant for potentiometric titration of perchlorate and as a phase-transfer catalyst in reduction of arenes and heterocyclic compounds.