12180 Results for: "1-Butyl-2-pyrrolidone"

HPLC columns, Viva C4 (USP L26)

Supplier: Restek

These columns are based on a wide pore material designed for optimal large-molecule separations. Base-deactivated, wide-pore packing exhibits excellent peak shape for a wide range of compounds. Less retention in reversed phase assays than Viva C18 or Viva C8.

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Reversed phase HPLC columns, Asahipak ODP-40, ODP-50, C4P-50 and C8P-50

Supplier: Resonac

Polymer-based amino columns that incorporate an amino group in the polyvinyl alcohol-based gel, they are suitable for analysis of saccharides in normal phase C18 (octadecyl) and C8 (octyl): For pharmaceutical products and metabolites that are soluble in physiological fluids.

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ISAspher HPLC Columns, C4

Supplier: ISERA

HPLC column of the ISAspher line guarantee the highest possible reliability in a wide range of applications.

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Fosamprenavir Related Compounds, Reference Standard

Supplier: USP

USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.

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Supelco® Ascentis® Phenyl HPLC Columns

Supplier: Merck

Ascentis®Phenyl HPLC columns are optimised to the three terms of the resolution equation: efficiency, retention, and selectivity.

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Bleomycin sulphate (mixture) (from Streptomyces verticillus), white powder

Supplier: MP Biomedicals

Bleomycin Sulfate is an atineoplastic antibiotic. A mixture of cytotonic glycopeptide antibiotics which reacts with DNA and causes strand scission; they have also been shown to have a type of oxygen transferase activity. Bleomycin A2 is the main component of the bleomycin employed clinically. Bleomycins differ from one another in the terminal amine and show varying biological activity.

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Automated solvent extractors according to Randall

Supplier: VELP SCIENTIFIC

The SER 148/3 and SER 148/6 can be used to separate a substance or a group of elements (e.g. fat) from solid and semi-solid samples according to the Randall technique (consisting of immersion, washing and solvent recovery). The main field of application is the determination of the content of soluble products such as fats, detergents, plasticisers and pesticides in food, animal feed, detergents, rubber and plastic formulas, pharmaceutical products, soil, and more.

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Araldite® M, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Araldite® is an epoxy resin commonly used for embedding. It is basically free from polymerization damage and the plastic does not sublime in the microscope, hence providing continual support and preservation of fine detail.[1] It is composed of araldite M or CY 212, dodecenyl succinic anhydride, dibutyl phthalate and 2,4,6-tridimethylamine methyl phenol.

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Crimp neck vials, N 20

Supplier: MACHEREY-NAGEL

These crimp neck vials with different capacities are suitable for a large number of autosamplers included headspace GC applications.

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Alcohol dehydrogenase, MP Biomedicals

Supplier: MP Biomedicals

Dissolves readily at 5 mg/ml in 0,01 M Sodium Phosphate pH 7,5 to give a clear colourless solution.

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HPLC columns, Hypersil GOLD™ Phenyl

Supplier: Thermo Fisher Scientific

Contains a C4 linker which allows for superior alignment of the phenyl ring with aromatic molecules. Get excellent retention and unique selectivity for aromatic and moderately polar analytes with Thermo Scientific™ Hypersil GOLD™ Phenyl reversed phase HPLC columns.

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ALDetect™ (MDA-Specific) Lipid Peroxidation Assay kit

Supplier: ENZO LIFE SCIENCES

Lipid peroxidation is a well-established mechanism of cellular injury in both plants and animals, and is used as an indicator of oxidative stress in cells and tissues. Lipid peroxides, derived from polyunsaturated fatty acids, are unstable and decompose to form a complex series of compounds. These include reactive aldehydes, of which the most abundant is malondialdehyde (MDA). Therefore, measurement of malondialdehyde is widely used as an indicator of lipid peroxidation. Increased levels of lipid peroxidation products have been associated with a variety of chronic diseases in both humans and model systems.

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Pre-packed columns, 50 and 200 ml, SkillPak™

Supplier: TOSOH BIOSCIENCE

SkillPak 50 and 200 ml columns are designed for fast method development and scale-up and are pre-packed with TOYOPEARL® and TSKgel® process chromatography media. These columns offer superior separation of biomelocules, such as monoclonal antibodies, proteins and oligonucleotides. They are the best solution to scale up methods developed on SkillPak 1 and 5 ml pre-packed columns.

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Hydrophobic interaction chromatography column, HiScreen™ Phenyl HP

Supplier: Cytiva

HiScreen Phenyl HP columns are prepacked with Phenyl Sepharose High Performance hydrophobic interaction chromatography (HIC) resins. The columns are an excellent choice for method optimization and parameter screening.