201 výsledků pro: "merck indicators"

Supplier: Merck

Merck TLC aluminium oxide plates use neutral or basic aluminium oxide of 60 or 150 Å pore size with or without fluorescent indicator to suit different application needs. Under aqueous conditions, basic compounds can be best separated on basic aluminium oxide plates, while neutral compounds are best separated on neutral plates.

Supplier: Merck

PLC (Preparative Layer Chromatography) plates are based on the same proven Merck silica-binder technology as analytical TLC plates. Plates are available with layers of unmodified silica gel or RP-18 modified silica gel in several layer thicknesses, ranging from 500 to 2000 µm, with or without fluorescent indicator.

Supplier: Merck

TLC plates, unmodified silica gel 60
Merck silica gel 60 has a unique polymeric binder that results in a uniform, hard surface that will not easily crack or blister. This smooth, extremely dense plate coating ensures narrow bands and maximum separation efficiency with the lowest background noise. Layer thickness 250 μm and particle size of 10 to 12 µm. Two inorganic fluorescent indicators for UV detection of colourless substances.

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.

Supplier: Merck

Mixed indicator 5 for ammonia titrations

Supplier: Merck

Anaerotest™ indicator strips to test for an anaerobic environment

Supplier: Merck

* Green fluorescent indicator

Supplier: Merck

Sicapent is a granular dessicant comprising ~75% phoshorus pentoxide on an inert inorganic carrier.

Supplier: Merck

ASTM(R) D4815 Qualitative Peak ID Mix, Supelco®, (each component at the nominal wt% indicated)

Supplier: Merck

Lead (II) acetate paper is used for the determination of sulphide and hydrogen sulphide.

Supplier: Merck

Potassium iodine paper is used for the determination of oxidising agents.

Supplier: Merck

Test kit, Iodine indicator

Supplier: Merck

Test kit, Indicator buffer tablets

Supplier: Merck

ASTM(R) D4815 Valve Timing Mix, Supelco®, (each component at the nominal wt% indicated)

Supplier: Merck

Traditional pH indicator test papers, supplied on a 4,8 metre roll, consisting of high quality filter paper impregnated with indicator and mixed indicator solutions then dried and cut to size.

Supplier: Merck

Traditional pH indicator test papers, supplied on a 4,8 metre roll, consisting of high quality filter paper impregnated with indicator and mixed indicator solutions then dried and cut to size.

Supplier: Merck

These test strips contain special indicator dyes that are covalently bound to the reagent papers which are then adhered to the plastic strips.

Supplier: Merck

CASO broth is a universal culture medium, a selective and differential medium for the primary isolation of members of the protease without indicator or inhibitor. Intended for a broad range of applications.

Supplier: Merck

Bromothymol blue indicator, Aplikace: Additive, Glass bottle

Supplier: Merck

Ethyl sulfate is a primary urinary metabolite of consumed alcohol and is indicative of recent alcohol consumption.

Supplier: Merck

Organic Standard, Monosaccharides kit, 1 kit

Supplier: Merck

Organic Standard, Sugar alcohol kit

Supplier: Merck

The measurement of pH in meat plays a central role in the processing of meat products and the assessment of their quality.

Supplier: Merck

Aflatoxin B1 is a mycotoxin found to be hepatocarcinogenic in nature. It has a strong affinity for the deoxyribonucleic acid (DNA) and binds to both native and denatured deoxyribonucleic acid (DNA) as indicated by spectroscopy and equilibrium dialysis results.

Supplier: Merck

Fuels Testing Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for hydrocarbon types in liquid petroleum products by fluorescent indicator adsorption ASTM D1319.

Supplier: Merck

Sterikon® plus bioindicators can be used to test the functionality of autoclaves (15 minutes at 121 °C). They can also be used to check any sort of autoclave load for the success of sterilisation. For example, pharmaceuticals, particularly products in ampoules, canned food and more.

Supplier: Merck

Chemizorb Alkalis is a powder mixture that consists of a mineral co-polymer as the absorbent, an acidic salt as the neutraliser, and a pH indicator.

Supplier: Merck

Quick tests, visual colour comparision.

Supplier: Merck

Quick tests, visual colour comparison.

Supplier: Merck

Quick tests, visual colour comparison.