10839 Résultats pour : "nmr solvent bdh"

Supplier: VWR Chemicals

SPECTRONORM solvents have extensive specifications to meet the highly demanding requirements of UV applications.

Supplier: VWR Chemicals

250 and 500 ml bottles with a septum cap featuring six separate re-sealable puncture points

Supplier: Honeywell Chemicals

Honeywell Chromasolv™ GC-headspace solvents:

Supplier: VWR Chemicals

SPECTRONORM solvents have extensive specifications to meet the highly demanding requirements of UV applications.

Supplier: Bohlender

Adaptor for the use of b.safe Exhaust filters on Justrite® Disposal safety cans in order to stop solvent vapours from the escaping in the air during filling with HPLC waste.

Supplier: ENTEGRIS

Liquid photochemical filters designed for developer, DI water and solvent applications in POU photolithography processes.

Supplier: Honeywell Chemicals

ACS GENERAL USE SOLVENTS

Supplier: Thermo Fisher Scientific

n-Heptane ∼ 99% (n-heptane) pour HPLC

Supplier: Thermo Fisher Scientific

n-Heptane, anhydre 99+%

Supplier: Thermo Fisher Scientific

n-Heptane 99+% pour HPLC

Supplier: Honeywell Chemicals

n-Heptane Reag. Ph. Eur., Burdick & Jackson™

Supplier: Honeywell Chemicals

ACS GENERAL USE SOLVENTS

Supplier: Merck

Dibutylammonium acetate is an ion-pairing agent with quaternary ammonium ions. It generally helps in ionization of carbohydrate fragments providing a volatile solvent for the mass spectrometric technique.

Supplier: THERMO SAVANT

The Thermo Scientific™ Savant™ SpeedVac™ SPD130DLX vacuum concentrator is a medium-capacity, vacuum concentrator with a modular design. It is compatible with a wide variety of solvents and offers resistance to TFA, DMSO, and other aggressive solvents used in combinatorial chemistry applications.

Supplier: Merck

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in "gradient grade" as well as "isocratic grade". This enables to minimize the gradient effect of the solvent involved.

Supplier: Honeywell Chemicals

n-Heptane ≥99% (GC (base n-heptane)), Puriss. p.a. Reag. Ph. Eur., Riedel-de Haën™

Supplier: Thermo Fisher Scientific

n-Heptane 99+%, très pur

Supplier: Honeywell Chemicals

n-Heptane ≥99% (par GC), CHROMASOLV™ pour analyse des résidus de pesticides, Riedel-de Haën™

Supplier: Roth Carl

n-Heptane

Supplier: Thermo Fisher Scientific

n-Heptane 99.5% pour analyses

Supplier: Welch by Gardner Denver

Precise vacuum control for evaporation and distillation of solvents and chemicals.

Supplier: Thermo Fisher Scientific

n-Heptane ≥99%

Supplier: Honeywell Chemicals

n-Heptane pour la chromatographie en phase gazeuse, Burdick & Jackson™

Supplier: Thermo Fisher Scientific

n-Heptane 99+% pour spectrophotométrie

Supplier: LGC Standards PROMOCHEM

Purity estimate obtained from a combination of traditional analytical techniques is 99,3 ± 0,6% mass fraction, (95% coverage interval). The purity estimate by traditional analytical techniques was obtained by subtraction from 100% of total impurities by GC-FID, and Karl Fischer analysis. Supporting evidence is provided by elemental microanalysis and 1H NMR analysis.

Supplier: VWR Chemicals

Specially developed solvent withdrawal system with manual pressure build-up for VWR® returnable 10 L stainless steel barrels.

Supplier: Thermo Fisher Scientific

n-Heptane, extra sec sur tamis moléculaire 99+%, AcroSeal®

Supplier: Honeywell Chemicals

n-Heptane ≥99% (par GC), CHROMASOLV™ pour LC-MS, Riedel-de Haën™

Supplier: MP Biomedicals

Soluble in water (1 g/20 ml - viscous solution acid to litmus); insoluble in organic solvents.

Supplier: Roth Carl

n-Heptane