"Merck"
18-Crown-6 (1,4,7,10,13,16-hexaoxacyclooctadecane) for synthesis, Sigma-Aldrich®
Supplier: Merck
18-Crown-6 (1,4,7,10,13,16-hexaoxacyclooctadecane) for synthesis, Sigma-Aldrich®
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Dibutylamine for synthesis, Sigma-Aldrich®
Supplier: Merck
Dibutylamine for synthesis, Sigma-Aldrich®
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Tween® 85 (Polysorbate) for synthesis, Sigma-Aldrich®
Supplier: Merck
Tween® 85 (Polysorbate) for synthesis, Sigma-Aldrich®
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1,2,4-Trimethylbenzene for synthesis, Sigma-Aldrich®
Supplier: Merck
1,2,4-Trimethylbenzene for synthesis, Sigma-Aldrich®
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Methyl orange 0,1% in aqueous solution, Supelco®
Supplier: Merck
Methyl orange 0,1% in aqueous solution, Supelco®
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Mercury(II) nitrate monohydrate ACS, Reag. Ph. Eur. for analysis, Supelco®
Supplier: Merck
Mercury(II) nitrate monohydrate ACS, Reag. Ph. Eur. for analysis, Supelco®
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Buffers, concentrated solutions, Titrisol®, Supelco®
Supplier: Merck
Titrisol® buffer concentrate for 500 ml buffer solution [20 °C].
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Reagents for the determination of COD for Merck photometers, Spectroquant®, Supelco®
Supplier: Merck
Test kit, COD solution A, Spectroquant®, Range: 4,0 - 40,0, 10 - 150 and 100 - 1500 mg/l
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Zirconium standard solution, 1000 mg/L Zr in 7% hydrochloric acid (from ZrCl₄) Certipur® standard for ICP, Supelco®
Supplier: Merck
Zirconium Standard, 1000 mg/L, Certipur®, Supelco®, Zirconium, Matrix: 7% HCl, Application: ICP standards
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TLC and HPTLC plates, cellulose, unmodified and modified layers
Supplier: Merck
Unmodified and modified cellulose plates for the analysis of polar substances.
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Ion exchange chromatography media, Ion Exchanger I
Supplier: Merck
Ion Exchanger I is a strong acid cation exchangers widely used in separation of noble earths and amino acids, water treatment, analysis and food industry. The bond strength of equivalent ions increases with decreasing diameter of the hydrated ion.
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TLC plates, silica gel 60, unmodified and chemically modified layers, aluminium backed
Supplier: Merck
TLC plates, unmodified silica gel 60
This range of plates uses Merck silica gel 60 with a unique polymeric binder that results in a uniform, hard surface that will not easily crack or blister. The smooth, extremely dense plate coating ensures narrow bands and maximum separation efficiency with the lowest background noise. Layer thickness 200 μm and, particle size of 10 to 12 µm. Flexible aluminium plates that can easily be cut to match individual separation requirements. Two inorganic fluorescent indicators for UV detection of colourless substances. Samples which absorb shortwave UV at 254 nm are detected due to fluorescence quenching.
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Readycult®
Supplier: Merck
Readycult® Coliform and Readycult® Enterococci make it easy to detect coliforms, E. coli or faecal streptococci in water. You only need a sterile container and a UV lamp (Cat. No. 1.13203.0001).
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Methyl toluene-4-sulphonate for synthesis, Sigma-Aldrich®
Supplier: Merck
Methyl toluene-4-sulphonate for synthesis, Sigma-Aldrich®
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1-Heptanesulphonic acid sodium salt, LiChropur™ for ion pair chromatography, Supelco®
Supplier: Merck
1-Heptanesulphonic acid sodium salt, LiChropur™ for ion pair chromatography, Supelco®
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#: 20864.320
: VWR Chemicals
#: 83640.320
: VWR Chemicals
#: 31770.294
: VWR Chemicals
#: 83645.320
: VWR Chemicals