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Analytical measurement and testing

Chromatography

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Cleanroom

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Stirring, shaking, mixing

Vacuum technology, drying, dry storage

454647484950
Short thread vials ND9, wide opening, micro vials | Nominal capacity: 0.2 ml, Dimensions (ØxH): 11.6 x 32 mm, Version (Vials): Insert, 0.2 ml
Short thread vials ND9, wide opening, micro vials | Nominal capacity: 0.2 ml, Dimensions (ØxH): 11.6 x 32 mm, Version (Vials): Insert, 0.2 ml
Brand: La-Pha-Pack GmbHAvailable in 4 variants
€1.105,01
Signal lamps for level control | Description: Signal lamps, Plug type: EU/UK/US, Power supply: 24 V DC
Signal lamps for level control | Description: Signal lamps, Plug type: EU/UK/US, Power supply: 24 V DC
Brand: SCAT Europe GmbHVisual signal when the level is reachedWith magnetic holderCable length 3 m
€215,00
SIL G unmodified standard silica layers for TLC, ALUGRAM® | Type: ALUGRAM® SIL G, Material: Aluminium, Dimensions (WxL): 50 x 75 mm
SIL G unmodified standard silica layers for TLC, ALUGRAM® | Type: ALUGRAM® SIL G, Material: Aluminium, Dimensions (WxL): 50 x 75 mm
Brand: Macherey-Nagel GmbH & Co. KGAvailable in 16 variantsSilica 60Specific surface (BET) ~500 m²/gMean pore size 60 ÅSpecific pore volume 0.75 ml/gStandard gradeThickness of layer for analytical plates 0.25 mm, for preparative plates 0.5 and 1 mmFor 2 mm preparative layers a slightly coarser material is used, indicators: manganese activated zinc silicate with green fluorescence for short-wave UV (254 nm)Binders: highly polymeric products, which are stable in almost all organic solvents and resistant towards aggressive visualisation reagentsAvailable with or without fluorescent indicator (UV 254)
€27,30
SIL G unmodified standard silica layers for TLC, glass plates/ POLYGRAM® | Type: Glass plates SIL G-25 UV254, Plate format cm: 5 x 10, Gel thickness mm: 0.25
SIL G unmodified standard silica layers for TLC, glass plates/ POLYGRAM® | Type: Glass plates SIL G-25 UV254, Plate format cm: 5 x 10, Gel thickness mm: 0.25
Brand: Macherey-Nagel GmbH & Co. KGAvailable in 42 variantsGlass plates, POLYGRAM®, ALUGRAM®Silica 60Specific surface (BET) ~500 m²/gMean pore size 60 ÅSpecific pore volume 0.75 ml/gParticle size 5 to 17 µmStandard gradeThickness of layer for analytical plates 0.25 mm, for preparative plates 0.5 and 1 mmFor 2 mm preparative layers a slightly coarser material is used, indicators: manganese activated zinc silicate with green fluorescence for short-wave UV (254 nm)Binders: highly polymeric products, which are stable in almost all organic solvents and resistant towards aggressive visualisation reagentsBinder system for Polygram® sheets is also completely stable in purely aqueous eluentsAvailable as glass plates, Polygram polyester sheets and Alugram aluminium sheetsAvailable with or without fluorescent indicator (UV 254)
€301,00
SIL G unmodified standard silica layers for TLC, POLYGRAM® | Type: POLYGRAM® SIL G, Material: Polyester, Dimensions (WxL): 40 x 80 mm
SIL G unmodified standard silica layers for TLC, POLYGRAM® | Type: POLYGRAM® SIL G, Material: Polyester, Dimensions (WxL): 40 x 80 mm
Brand: Macherey-Nagel GmbH & Co. KGAvailable in 10 variantsSilica 60Specific surface (BET) ~500 m²/gMean pore size 60 ÅSpecific pore volume 0.75 ml/gStandard gradeThickness of layer for analytical plates 0.25 mm, for preparative plates 0.5 and 1 mmFor 2 mm preparative layers a slightly coarser material is used, indicators: manganese activated zinc silicate with green fluorescence for short-wave UV (254 nm)Binders: highly polymeric products, which are stable in almost all organic solvents and resistant towards aggressive visualisation reagentsBinder system for Polygram® sheets is also completely stable in purely aqueous eluentsAvailable with or without fluorescent indicator (UV 254)
€41,20
Silgur unmodified standard silica layers with concentrating zone | Type: Glass plates SILGUR-25 UV254, Plate format cm: 20 x 20, Path length mm: 0.25
Silgur unmodified standard silica layers with concentrating zone | Type: Glass plates SILGUR-25 UV254, Plate format cm: 20 x 20, Path length mm: 0.25
Brand: Macherey-Nagel GmbH & Co. KGAvailable in 4 variantsGlass platessilica 60, specific surface (BET) ~ 500m2/g, mean pore size 60Ä, specific pore volume 0.75ml/g, particle size 5.17µmkieselguhr zone for rapid sample application: because kieselguhr is completely inert towards a large number of compounds, the samples always from a narrow band at the interface of the two adsorbents, irrespective of shape, size or position of the spots in the concentrating zone. Separation then takes place inthe silica layer.available as glass plates with or without fluorescent indicator (UV254)
€200,00
Silica adsorbents for low pressure column chromatography | Description: Silica 60, 0.5 - 1.0 mm, Particle size: 18 - 35 mesh, Weight kg: 1
Silica adsorbents for low pressure column chromatography | Description: Silica 60, 0.5 - 1.0 mm, Particle size: 18 - 35 mesh, Weight kg: 1
Brand: Macherey-Nagel GmbH & Co. KGAvailable in 35 variantsStandard silica 60, pore size ~ 60 Å; pore volume ~ 0.75ml/g; spec. surface BET ~ 500m²/g. highly porous, amorphous silicic acid in the form of hard, opalescent particles, prepared by precipitation of water glass with sulphuric acid. Silica FIA for the fluorescence indicator adsorption procedure for the determination of hydrocarbon groups in the testing of liquid fuels in accordance with DIN 51791 and ASTM D 1319-58T. The FIA method determines saturated hydrocarbons, olefins and aromatic hydrocarbons of a sample chromatographically by adsorption and desorption in a column filled with FIA silica, in the presence of a fluorescent dye mixture. Further silica adsorbentson request.
€48,40
Silylation kit | Content: 2 x 1 ml each for MSTFA, BSTFA, TSIM, MSHFBA
Silylation kit | Content: 2 x 1 ml each for MSTFA, BSTFA, TSIM, MSHFBA
Brand: Macherey-Nagel GmbH & Co. KGWhich is the proper reagent for silylation?Test kit for determination of the optimum silylation.
€102,00
Silylation reagents - BSTFA, SILYL-991 | Description: SILYL-991 (BSTFA - TMCS (99:1), Capacity ml: 1
Silylation reagents - BSTFA, SILYL-991 | Description: SILYL-991 (BSTFA - TMCS (99:1), Capacity ml: 1
Brand: Macherey-Nagel GmbH & Co. KGAvailable in 6 variantsN,O-bis-trimethylsilyl-trifluoroacetamidem.w. 257.4, Bp 40°C (12mm Hg), density d20°/4° = 0.961BSTFA: R = CF3 powerful trimethylsilyl donor with approximately the same donor strength as the non-fluorinated analogue BSAadvantage of BSTFA over BSA: greater volatility of its reaction products (particularly useful for GC of some lower boiling TMS amino acids.BSTFA is nonpolar (less polar than MSTFA), and can be mixed with acetonitrile for improved solubility. For silylating fatty acid amides, hindered hydroxyls and other compounds, which are difficult to silylate (like secondary alcohols and amines), we recommend BSTFA + 1% trimethylchlorosilane (TMCS), available under the designation SILYL-991.
€159,00
Silylation reagents - MSTFA | Description: MSTFA, Capacity ml: 10
Silylation reagents - MSTFA | Description: MSTFA, Capacity ml: 10
Brand: Macherey-Nagel GmbH & Co. KGAvailable in 7 variantsN-methyl-N-trimethylsilyl-trifluoroacetamidem.w. 199.1, Bp 70 °C (75 mm Hg), density d20°/4° = 1.11MSTFA: R' = CF3, R" = CH3The most volatile trimethylsilyl amide available.Very strong TMS donor which does not cause any noticeable fouling of the FID burning chamber even after long-time measuring series.The already good solution characteristics can be improved by addition of submolar quantities of protic solvents (e.g. TFA for extremely polar compounds such as hydrochlorides) or pyridine (e.g. for carbohydrates).
€114,00
Simultan separating chamber | Description: Separating chamber 200 x 200 mm with knob lid
Simultan separating chamber | Description: Separating chamber 200 x 200 mm with knob lid
Brand: Bionis SASFor all TLC plates up to 200 x 200 mm. Flat chamber floor with vertical grooves for up to 5 TLC plates.
€331,00
Single use needles Sterican®, chromium-nickel steel
Single use needles Sterican®, chromium-nickel steel
Brand: B. Braun DeutschlandAvailable in 2 variantsTriple facet cut
€5,74
454647484950

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