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Katalógové číslo: (VARI6610030100)

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Opis: 500 ml solution contains 5 mg/l Al, As, Ba,Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn and 50 mg/l K in 5 % HNO3 + tr HF.

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Katalógové číslo: (VARI9910115600)

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Opis: Plastic, translucent.

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Opis: Bond Elut™ SAX is a strong anion exchange sorbent ideally suited for the extraction of compounds such as carboxylic acids, which may not retain effectively on weak anion exchange sorbents. The sorbent is supplied in the chloride counter ion form. You can modify the selectivity of the phase by replacing the chloride ion with other anions, such as acetate and hydroxide.

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Opis: EZ-Guard columns combine a FactorFour column with a built-in guard column.

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Opis: These rigid, strong ion exchange materials are extremely hydrophilic that is ideal for purification of biomolecules. The PL-SAX and PL-SCX materials are totally polymeric and are chemically and thermally stable over a full range of HPLC conditions.

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Opis: These columns are ideal for the anion exchange HPLC separations of proteins and deprotected synthetic oligonucleotides under denaturing conditions.

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Opis: PL-Thiol MP SPE, 500 mg/6 mL

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Opis: 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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Opis: Bond Elut™ NH₂ is a weaker anion exchanger than sorbents such as SAX (a quaternary amine sorbent that is always charged) and is therefore a better choice for retention of very strong anions, such as sulfonic acids, which may retain irreversibly on a SAX sorbent. Similar to Diol and SI sorbents, Bond Elut™ NH₂ is excellent for the separation of structural isomers.

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Opis: Bond Elut™ C18 OH is a non-end capped version of the octadecyl bonded phases that enables the silanols on the silica surface to be more active. This low-load C18 has well-controlled silanol activity that permits the fractionation of metabolites and enhances retention of basic compounds compared to an endcapped C18. The pore size makes it a good choice for peptide extraction.

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Opis: Bond Elut™ EWP is based upon standard particle size silica but with 500 Å pores to allow more efficient extraction of large molecules (>15000 MW), which are typically excluded from standard porosity silica phases.

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Opis: Solid Phase Extraction (SPE) plate, SPEC 96-well plate, Silica-based sorbents, 15 mg

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Opis: High efficiency 0,15 and 0,18 mm Int.Ø columns are a simple and cost effective way to increase sample throughput with existing GC or GC/MS instruments.

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Opis: The EasiCal system for organic solvents consists of two different combs, each with ten detachable spatulas supporting a mixture of five polymer standards with MWs selected to provide equidistant calibration points for greater accuracy.

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Opis: Chloromethylpolystyrene known as merrifield resin, PL-CMS is a copolymer support for solid phase synthesis of peptides using Boc chemistry.

Katalógové číslo: (VARI2740928202)

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Opis: O-ring, McDowell 2-112-S0604-70

Merná jednotka: 1 * 30 items

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