12992 Results for: "Allylmagnesium+chloride&pageNo=34"

Supplier: VWR Chemicals

Multi-Element Standard, Ion chromatography cation multi-element standard solution VI, 10 - 100 mg/L
NH₄⁺, K⁺, Na⁺, Ca²⁺, Mg²⁺, VWR® ARISTAR®, Application: Ion chromatography standards

Supplier: Merck

The selectivity offered by ZIC®-HILIC is suitable for a wide variety of molecules containing hydrophilic or ionisable functional groups. This includes compounds such as carbohydrates, metabolites, acids and bases, organic and inorganic ions, metal complexes, amino acids, peptides, protein digests, plant and cell extracts, plus much more. Such compounds are normally characterised by a small or negative LogP value and have poor retention on reversed-phase columns.

Supplier: HAMILTON BONADUZ

The 700 series syringe is the original hand-fitted Hamilton syringe. This series of syringes is ideal for dispensing volumes from 0,5 to 500 µl. The stainless steel plunger is manufactured to fit the glass barrel with a tolerance smaller than 100 millionths of an inch, resulting in unsurpassed syringe life. Each syringe is manufactured to achieve the highest level of accuracy and precision possible.

Supplier: Thermo Fisher Scientific

Superior comfort, performance, reliability and easiness of maintenance in one of the lightest pipettes available in the market.

Supplier: ProSci Inc.

Maturation of cytoplasmic tRNAs includes splicing of introns, which are located 1 nucleotide 3-prime from the anticodon in all intron-containing tRNA genes. In tRNA-leu(CAA), the first position of the anticodon, C34, is converted to 5-methylcytosine, a modification necessary to stabilize the anticodon-codon pairing and correctly translate the mRNA. NSUN2 encodes a methyltransferase that catalyzes the intron-dependent formation of 5-methylcytosine at C34 of tRNA-leu(CAA) (Brzezicha et al., 2006 [PubMed 17071714]).

Supplier: WTW

A wide choice of tests is available, for routine quantitative analysis in different applications, designed for use with WTW spectrophotometers and photometers. The test is automatically recognised by the laboratory instruments (via a barcoding system) and results are displayed in the appropriate units. Due to the different photometer optics, one test may yield different measuring ranges in different instruments; LED photometers may have smaller measuring ranges for the same test.

Supplier: Biotium

Phalloidin is a toxin isolated from the deadly Amanita phalloides mushroom. It is a bicyclic peptide that binds specifically to F-actin. Fluorescent conjugates of phalloidin are convenient tools to investigate the distribution of F-actin in fixed and permeabilised cells or tissue sections. One unit (U) of phallodin is sufficient to stain one sample (200 µl staining volume). A highly selective actin filament stain for fixed and permeabilised cells. Labeled phalloidins have similar affinity for both large and small filaments.

Supplier: Restek

These biphenyl coulmns have a greater degree of dispersion than conventional phenyls and a greater degree of polarisability than phenyl hexyls, creating higher selectivity and a greater range of usability. With heightened interactions shows substantial increases in retention for dipolar, unsaturated, or conjugated solutes and enhanced orthogonal selectivity when using methanol mobile phases.

Supplier: MICROSOLV

RSA™ (Reduced Surface Activity) high quality and extremely consistent autosampler vials and caps due to reduced surface activity glass manufacturing and control processes. Excellent for low abundance or low dosage form analytes or samples that are pH sensitive, or basic in nature.

Supplier: MICROSOLV

These useful HPLC columns have a silica hydride surface similar to other TYPE-C™ phases but the uniqueness of Diamond Hydride™ is that they have a very small amount of carbon on the surface that adjusts the hydrophobicity to a small but important level. This is an excellent choice for small, polar compounds by LCMS or HPLC.

Supplier: TOSOH Bioscience

SkillPak™ BIO pre-packed columns are designed for a fast method development and scale-up of multi-column chromatography (MCC) or continuous chromatography processes. They are pre-packed with TOYOPEARL® process chromatography media for bioseparations.

Supplier: GA

These freezer grade blackout labels are designed to conceal any already existing information or labels. Can be used to re-label cryo vials, microtubes, and freezer boxes stored in ultra-low temperature freezers (−80 °C) or transported in dry ice.

Supplier: ProSci Inc.

This gene encodes a member of the WD repeat protein family. WD repeats are minimally conserved regions of approximately 40 amino acids typically bracketed by gly-his and trp-asp (GH-WD), which may facilitate formation of heterotrimeric or multiprotein complexes. Members of this family are involved in a variety of cellular processes, including cell cycle progression, signal transduction, apoptosis, and gene regulation.

Supplier: Restek

Ultra Aqueous C18 columns are made of high-purity, type-B silica that minimizes activity and creates high-density bonding, these columns are designed for selective and reliable HPLC applications. It is highly retentive and selective for reversed phase separations of polar analytes, and highly base deactivated. Compatible with highly aqueous (upto 100%) mobile phases.

Supplier: Restek

Highly base-deactivated spherical silica manufactured by Restek. Monomeric C18 bonding. Hydrophobic C18 phase suitable for analyses of a wide range of compounds, from acidic through slightly basic. Replaces Hypersil® BDS C18 and Pinnacle® ODS Amine.

Supplier: Restek

These MXT-5 columns are Siltek-treated stainless steel with low-polarity phase, crossbond diphenyl dimethyl polysiloxane stationary phase. All residual catalysts and low molecular weight fragments are removed from the MXT-5 polymer, providing a tight monomodal distribution and extremely low bleed.

Supplier: TOSOH Bioscience

These columns are designed for GFC of water soluble organic polymers, polysaccharides, oligosaccharides, DNA and RNA. They are based on a hydrophilic polymethacrylate matrix, which is stable from pH 2 to 12 and in aqueous eluents with up to 50% polar organic solvent.

Supplier: LAUDA

Immersion thermostats with menu navigation in plain text for user friendly operation. Various interface modules are available as optional accessories. The ECO immersion thermostats can be used with baths from any manufacturer thanks to the screw clamp which is included as standard.

Supplier: Ahlstrom-Munksjö

Ahlstrom-Munksjö’s qualitative grades of filter paper are recommended for use in analytical methods which determine or identify particulate constituents of a mixture irrespective of the amount present. Qualitative filter papers are often used in routine separation work that still requires high purity and consistent performance. These filter papers covers a wide range of laboratory applications, as liquids clarification, qualitative analytical separations for precipitates and buffers filtration, and are also used for soil analysis and in food and beverage testing. Standard qualitative filter papers are suitable for quadrant folded or gravity flow applications.

Supplier: Thermo Fisher Scientific

For cultivation of most cell types, without matrix coating. Membranes are thermally welded to the polystyrene upper structure. Polycarbonate membranes in larger pore sizes are adaptable to many uses in cell culture including transport studies, toxicity tests, chemotaxis studies and electron microscopy. Membranes are transparent when wet and are suitable for phase contrast and Normanski Optic Systems.

Supplier: Thermo Fisher Scientific

Recommended for analytes with medium hydrophobicity or when a less hydrophobic phase is required to obtain optimum retention.

Supplier: ERGOMAT

The Ergomat Softline is made from nitrile rubber and is designed to increase comfort while reducing tripping hazards, body aches, quality issues, and sick leaves. It is designed for areas where resistance to oil, petrochemicals and heat is important. Ideal for wet environments, in case of excessive volumes of fluids, the Softline can be die-cut to allow for drainage.

Supplier: TEKNOMEK

This stainless steel workbench features a solid undershelf, perfect for storing smaller items out of the way, but close to hand for when they are needed. Durable and strong, this range is ideal for heavier payloads. Fully welded, they reduce the risk of dirt traps.

Supplier: Whatman products (Cytiva)

Nuclepore™ track-etched hydrophilic membrane filters offer a highly defined pore size cut-off in the submicron range, enabling particle deformity measurement and capture of extremely small particles. The membranes have sharply defined pores, high flow rates, and excellent chemical and thermal resistance. They are suitable for a variety of samples and applications, including microscopy, cytology, parasitology, and certain air and oceanography analyses.

Supplier: CENTURION SAFETY PRODUCTS

These vented safety helmets are made of HDPE. They are available with or without wheel ratchet.

Supplier: VARIAN

The PLRP-S media, rigid poly(styrene/divinylbenzene) particles, are available in a range of pore sizes for small molecule, synthetic biomolecule and macromolecule purification. Their thermal and chemical stability makes them ideal for purifications that require extreme conditions for sample preparation, compound elution and column regeneration

Supplier: Restek

Highly base-deactivated spherical silica manufactured by Restek. Pinnacle® DB Phenyl columns offer alternate selectivity to straight chain hydrocarbon phases, especially for aromatic analytes. Replaces Hypersil® BDS Phenyl and Pinnacle® Phenyl Amine.

Supplier: S.C.A.T.

The SCAT SafetyWasteCaps provide maximum safety for your HPLC liquid disposal. Safely dispose of your liquid laboratory waste without contaminating the ambient air by using SafetyWasteCaps with integrated exhaust air filters. These high-performance filters regulate the air pressure balance and prevent the escape of vapors due to the resulting overpressure in the disposal container. The variety of closures, connections and thread sizes allows optimal adaptation to your HPLC situation. Additional versions with grounding connections, level controls or safety funnels or offer every convenience for safe disposal.

Supplier: asecos

Fireproof safety cabinets, classified type 30 (fire resistant up to 30 minutes), safe, durable, robust and convenient with transport base and bicoloured cabinet design.

Supplier: Brady

PermaSleeve® PS heat-shrink polyolefin (B-342) wire marking sleeves combine speed, ease of use, and permanence to create long-lasting, high quality identification.