Merck Environmental Products & Reviews

• Concentrates 500 µL down to 15 µL• Concentration factor 25 x to 30 x• High sample recovery (greater than 90% of dilute starting solution)• Fast processing time - 10 to 30 minutes• Consistent recoveries thanks to the reverse spin capability• Reverse spin capability provides consistent recoveries

Porous Graphitic Carbon (PGC) particle-packed columns which offer unique physical and chromatographic advantages to silica particle packed columns including pH stability from 1 – 14, polar compound retention under reversed-phase conditions, and temperature stability up to 250 °C.

With the new MAS-100 Atmos ®  instrument, it’s never been so simple, safe and easy-to-be compliant when sampling gases for microbial contamination.

Certified reference material, Trace CERT ® , 100 μg/mL each component in methanol, ampule of 1 mL.

Introducing Direct Detect™, the first infrared (IR)-based biomolecular quantitation system. Just spot your sample, blank, and read! No sample prep, standard curves, messy cuvettes or liquid waste. With inherent amide bond detection, the Direct Detect™ system distinguishes proteins and peptides from interfering sample components, providing more accurate results without the pitfalls of colorimetric assays. Technology: FTIR Spe…

Sterivex-GP Pressure Sterile Filter Unit.

Steripak-GP filter units are designed for larger scale pressure-driven filtration of tissue culture media with or without serum. They are single use and are not autoclavable. The filter units come in two sizes, with the smaller unit able to filter up to 10 L and the larger up to 20 L. Both sizes utilize the low protein binding, fast flow 0.22 µm EMD Millipore Express membrane.

Steritop bottle top filter units provide a large filter area for rapid sterile filtration of aqueous fluids into narrow-mouth (33 mm) or wide-mouth (45 mm) bottles. A small tab inside the funnel secures an optional prefilter in-place during filtration. For added protection against contamination, the threads for bottle attachment have been slightly recessed in case the funnel accidentally touches a work surface

33 mm diameter sterile syringe filters.

Proteinase K from Tritirachium album ELEVATE  

Proteinase K from Tritirachium album ELEVATE

ACS reagent, ≥49.0% Au basis

ACS reagent, ≥37.50% Pt basis

ACS reagent, ≥99.0%

Chromatin Immunoprecipitation (ChIP) is an important technique allowing the researcher to analyze in vivo interactions of proteins with genomic DNA. Any chromatin-associated or DNA binding protein can be analyzed with this technique, provided a good antibody to the protein exists. One can measure different proteins localized to a specific region of the genome, or the genome wide distribution of a specific protein. Another powe…

The EZ-Zyme™ Chromatin Prep kit allows ChIP analysis at nucleosome resolution by performing complete or partial digestions with a proprietary enzymatic cocktail to obtain chromatin fragments of on average one to a few nucleosomes in length. Compared to sonication, this procedure not only allows mapping the protein-DNA association at a higher resolution, but also renders the subsequent immunoprecipitation more efficient due to…

Sterivex filter units work with syringes, peristaltic pumps or pressure vessels. They eliminate the risk of contamination associated with decanting or pipetting.Sterivex units are designed to dispense into virtually any storage container. The devices are available with different outlet connectionsSterivex filter units can process volumes up to 1,000 mL or 2,000 mL, depending on the type of membrane used in the device. A choice…

The Steriflip filter unit is designed to work with standard 50 mL centrifuge tubes, which eliminates sample transfer. To filter, just attach the unit to a 50 mL centrifuge tube containing your sample, flip it over, and apply the vacuum. When finished, the filtrate collects in the attached 50 mL centrifuge tube.Steriflip Nylon Net filters are now available in 40, 60 and 100 µm pore sizes, making them ideal for stem cell, cardio…

Sterivac vacuum-driven filter units are ideal for bottle-top filtering directly into receiver flasks at flow rates as fast as 1.5 L/min. The unique "start & stop" filtration action makes setting up, filtering and transferring the unit to another receiver fast and easy. Push a button to stop filtering, move the device to an empty bottle and restart

The Stericap ™ PLUS Universal Bottle-Top Filter Device provides fast, large-volume filtration into any sized bottle.

• Concentrating and desaltingchromatography column eluates• Concentrating monoclonal antibodies• Concentrating proteins or viruses from culture supernatants• Clarifying tissue homogenates and cell lysates• Buffer exchange or diafiltration

• High recovery Ultracel regenerated cellulose membrane in a range of molecular weight cut-offs• High retentate recovery of >90%• Vertical membrane reduces concentration polarization for ultra-fast spin times (as fast as 10–15 minutes)• Heat-sealed membrane minimizes downstream extractables• 100% integrity tested for reliable performance• Convenient sample monitoring with translucent housing and volume gradations• Direct pipet…

• High recovery Ultracel regenerated cellulose membrane in a range of molecular weight cut-offs• High retentate recovery of >90%• Vertical membrane reduces concentration polarization for ultra-fast spin times (as fast as 5 minutes)• Heat-sealed membrane minimizes downstream extractables• 100% integrity tested for reliable performance• Convenient sample monitoring with translucent housing and volume gradations• Direct pipette s…

Easy, pre-sterilized, centrifugal sample clarification units for either 0.5 mL (MC) or 2 mL (CL) maximum volumes.High recovery Durapore (PVDF) membraneFast filtration and highly reproducible performanceUse in fixed-angle rotors for 1.5 mL tubes (MC) or 15 mL tubes (CL)

Montage Antibody Purification Kits are designed for fast and easy antibody purification from serum, ascites or cell culture supernatants. The kits include spin columns pre-packed with high capacity PROSEP-A or G media. There are no pumps to setup. No columns to pack. All you need is a centrifuge to purify 10–20 mg in less than 60 minutes.The protocol is easy to follow and, unlike traditional gravity flow methods, the use of ce…