8982 Results for: "VARIAN"
Solid phase extraction cartridges, Bond Elut™ SAX
Supplier: VARIAN
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.
Expand 29 Items
Pre-prepared polystyrene kits, EasiCal™
Supplier: VARIAN
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.
Expand 4 Items
Polyacrylic acid calibration kits for GPC/SEC
Supplier: VARIAN
Aqueous polymers for GPC/SEC.
Expand 5 Items
Guard columns, EZ-Guard™
Supplier: VARIAN
EZ-Guard columns combine a FactorFour column with a built-in guard column.
Expand 18 Items
Ion exchange chromatography columns, PL-SAX and PL-SCX
Supplier: VARIAN
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.
Expand 28 Items
Strong anion exchange HPLC columns, PL-SAX
Supplier: VARIAN
These columns are ideal for the anion exchange HPLC separations of proteins and deprotected synthetic oligonucleotides under denaturing conditions.
Expand 24 Items
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.
Expand 4 Items
Solid phase extraction cartridges, Bond Elut™ NH₂
Supplier: VARIAN
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.
Expand 24 Items
Solid phase extraction cartridges, Bond Elut™ C18 OH
Supplier: VARIAN
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.
Expand 4 Items
Solid phase extraction cartridges, Bond Elut™ C18 EWP
Supplier: VARIAN
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.
Expand 5 Items
SPEC 96-well plates
Supplier: VARIAN
Solid Phase Extraction (SPE) plate, SPEC 96-well plate, Silica-based sorbents, 15 mg
Expand 13 Items
Solid phase extraction cartridges, Bond Elut™ SI
Supplier: VARIAN
Native silica is generally regarded as the most polar SPE sorbent available. Bond Elut™ SI is particularly effective at separating compounds with a very similar structure. Applying the analytes in a non-polar solvent, then increasing the solvent polarity by increasing the concentration of a polar modifier, such as THF or ethyl acetate, delivers effective separations.
Expand 18 Items
Solid phase extraction cartridges, Bond Elut™ C8
Supplier: VARIAN
Bond Elut™ C8 is very similar in properties to C18, but is not as retentive for non-polar compounds, due to its shorter hydrocarbon chain, and therefore reduced carbon loading. C8 is an excellent replacement for C18 when analytes are too strongly retained for effective elution. The potential for polar interactions is somewhat higher than for C18 because there is less coverage of the silica surface. These polar interactions are not, however, a significant property of C8.
Expand 23 Items
High efficiency GC columns
Supplier: VARIAN
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.
Expand 8 Items
Resin, PL-CMS, StratoSpheres™
Supplier: VARIAN
Chloromethylpolystyrene known as merrifield resin, PL-CMS is a copolymer support for solid phase synthesis of peptides using Boc chemistry.
Expand 4 Items
O-rings for McDowell 2-112-S0604-70
Supplier: VARIAN
O-ring, McDowell 2-112-S0604-70
Expand 1 Items
HPLC columns, MetaCarb
Supplier: VARIAN
The MetaCarb™ line of carbohydrate columns provides high resolution columns for applications requiring high performance carbohydrate and organic acid analysis. These columns contain sulfonated polystyrene resins in the Calcium (87C), Hydrogen (87H), and Lead (87P) forms, and provide a wide range of selectivities for carbohydrate and organic analysis. They are widely used in the food and beverage industries for analysis of sweeteners, corn and cane sugars, fruit juices, soft drinks, beer and dairy products.
Expand 31 Items
Gel permeation chromatography columns, PolarGel
Supplier: VARIAN
The PolarGel range is ideal for use with polar solvents, such as dimethyl formamide (DMF) and dimethyl sulfoxide (DMSO), and for solvent combinations such as tetrahydrofuran with water.
Expand 6 Items
Tubing kit for ketone-based organic solvents
Supplier: VARIAN
Organic samples, ketone based organic solvents (includes Marprene™ pump tubing (one each black/black and white/white), FEP transfer tube (spray chamber to torch), drain tubing, tubing for waste line, one pack of EzyFit connectors, nebulizer capillary tubing, connectors and connecting tubing).
Expand 3 Items
Size exclusion chromatography columns, ProSEC 300S
Supplier: VARIAN
The ProSEC 300S column is specifically designed as a single column solution for globular protein analysis. The pore size selection and optimisation provides an extended linear resolving range so that this single column can be used for analysis across the full range of globular proteins.
Expand 4 Items
Capillary columns, Select FAME
Supplier: VARIAN
The Select FAME column is tuned for optimal cis-trans separations of FAMEs, especially C₁₈ isomers.
Expand 4 Items
Capillary columns, CP-Sil 19 CB for pesticides
Supplier: VARIAN
Ideal as a confirmation column for reliable results.
Expand 3 Items
Capillary columns, CP-Sil 88
Supplier: VARIAN
CP-Sil 88 columns have high selectivity towards positional and geometric isomers for ease-of-use.
Expand 4 Items
Capillary columns, CP-Wax for volatile amines and diamines
Supplier: VARIAN
CP-Wax for volatile amines and diamines is optimised for analysis of volatile amines and diamines, particularly C3-C8 amines and diamines. The column delivers symmetrical peaks due to basic reagent deactivation and exhibits good inertness towards basic compounds.
Expand 2 Items
Capillary columns, CP-FFAP CB
Supplier: VARIAN
Columns for free fatty acids in dairy products.
Expand 4 Items
HPLC columns, MonoChrom® Diol
Supplier: VARIAN
MonoChrom® columns provide excellent chromatography of organic amines, organic acids, amphoteric compounds and neutral compounds.
Expand 1 Items
Capillary columns, CP-Squalane
Supplier: VARIAN
CP-Squalane gives the best separation of C₄-C₁₀ hydrocarbons.
Expand 1 Items
Accessories for gas purification system, renewable
Supplier: VARIAN
GC installation kit with renewable gas purifier