Hľadali ste: Dibenzyl+toluene

Katalógové číslo: (91040.050)

Dodávateľ: VWR Chemicals

Opis: Due to its excellent separation capacity and its high sensitivity gas chromatography is a widely used technique for analytical purposes. In order to get proper identification and quantification results of the analysed compounds, reference standards are needed. These PESTINORM® reference substances can be used for the characterisation of GC column properties. In addition they may also be used for the identification of unknown compounds in a gas chromatogram or as standards in quantitative GC analysis.

Merná jednotka: 1 * 5 mL

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Katalógové číslo: (85758.001)

Dodávateľ: VWR Chemicals

Opis: These standards are for the calibration of refractometers prior to use.

Merná jednotka: 1 * 1 KIT

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Dodávateľ: GASTEC

Opis: Crystal clear gas tubes with distinct colour changes.

Katalógové číslo: (48913.)

Dodávateľ: Merck

Opis: EPA TCL Pesticides Mix, Supelco®, Certified reference material, 2000 mug/mL each component in hexane: toluene (1:1), : N/A

Merná jednotka: 1 * 1 items

Predaj

Katalógové číslo: (47915-U)

Dodávateľ: Merck

Opis: EPA 608 Pesticides Mix, Supelco®, Certified reference material, 20 mug/mL each component in hexane: toluene (1:1), : N/A

Merná jednotka: 1 * 1 items

Predaj

Katalógové číslo: (151-0123)

Dodávateľ: Dräger

Opis: These chips are suitable for the gas analyser with chip measurement. They are calibrated for up to two years.

Merná jednotka: 1 * 10 items

Predaj

Dodávateľ: Amarell

Opis: This extensive range of low temperature thermometers is suitable for government verification as well as government calibration (620-1713). Toluene or pentane.

Dodávateľ: Merck

Opis: Several reference materials for use in testing instruments are described in the European pharmacopoeias (e.g. Ph Eur. 2.2.6). In this case, the substances trimethylpentane, toluene and methylnaphthalene are prescribed. This instrument test should be carried out prior to every analysis. The comprehensive product range includes standards suitable for practically every operating range; the range 1,3915 to 1,6160 (20 °C) is covered.

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Katalógové číslo: (SIAL924326-1MG)

Dodávateľ: Merck

Opis: Copper indium sulfide zinc sulfide (CuInS2/ZnS) core/shell quantum dots are a heavy metal-free, high-performance alternative to cadmium-based quantum dots. CuInS2 QDs, as the I–III–VI ternary semiconductor nanocrystals contain two cations (Cu+ and In3+) and one anion (S2–). These QDs have unique photophysical properties; that make them superior to molecular dyes. Advantages of QDs include higher photostability, broad absorption spectrum, high extinction coefficients, and tunable optical and electronic properties.

Merná jednotka: 1 * 1 mg

Predaj

Dodávateľ: VWR Collection

Opis: Integrated safety vent cap eliminates dripping of vapours.

Katalógové číslo: (182192-5G)

Dodávateľ: Merck

Opis: GPC Standard, Poly(lauryl methacrylate) solution, Mw 570000 (Typical), average Mn 290000 (Typical), Supelco®, 25 wt. % in toluene, Analytical standard

Merná jednotka: 1 * 5 g

Predaj

Katalógové číslo: (181412-10G)

Dodávateľ: Merck

Opis: GPC Standard, Poly(butyl acrylate) solution, Mw 60000 (Typical), average Mn 20000 (Typical), Supelco®, 25 wt. % in toluene, Analytical standard

Merná jednotka: 1 * 10 g

Predaj

Katalógové číslo: (AMARL33012-TOL/VC)

Dodávateľ: Amarell

Opis: These thermometers are suitable for government verification or calibration.

Merná jednotka: 1 * 1 items

Predaj

Dodávateľ: HELLMA

Opis: <p>Kalibrační standardy Hellma® vyhovují všem nezbytným standardům a předpisům a nabízejí tak nejvyšší kvalitu pro rekalibraci vašeho spektrometru.</p>

Katalógové číslo: (84833.180)

Dodávateľ: VWR Chemicals

Opis: Bandwidth standards.

Merná jednotka: 1 * 100 mL

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Katalógové číslo: (1.08165.0001)

Dodávateľ: Merck

Opis: For spectrophotometer calibration according to Ph. Eur.

Merná jednotka: 1 * 8 Ampoul

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