SPE is a form of chromatography, and, as with other chromatographic techniques, control of flow rate is critical for maintaining reproducible extractions. Unlike other vacuum manifolds, the Visiprep system contains a patented valve system that allows for precise flow control through each SPE tube…

Sheets pre-cut to fit standard multiwell plates. Both film and adhesive are inert and compatible with microplate procedures. Adhesive forms a tight, waterproof seal, preventing cross-contamination and evaporation. SealPlate film is 2 mil (0.05 mm) polyester, with a functional temperature range of…

Stirring bars using rare earth magnets have significantly increased magnetic strength compared to those using Alnico magnets, but more importantly they are almost totally resistant to demagnetisation.Stir bars using rare earth magnets are identified by a carbon black spot which us chemically inert.…

Electro-pneumatically operated TLC sprayer provides: Minimum reagent consumption due to homogenous spray performance Two different spray heads optimized for both low- and high-viscosity solutions Ready-to-use spray solutions fit directly onto the sprayer

The test is suitable for the selective determination of peracetic acid traces in aqueous solutions and for check the absence of peracetic acid after rinsing processes, also in cases in which hydrogen peroxide is present.

General description Economical and convenient storage for samples in your screw cap and crimp seal vials. Can be stacked when empty or full. Autoclavable, 120°C. Each case contains 5 racks.

Latch-Lid(TM) units have a unique stainless steel latching device that holds the lid and tank firmly in place. This permits complete saturation of the chamber with solvent vapor for uniform development of chromatograms. Glass tank features flat ground tops, inner and outer rims beveled for safety,…

The smartSpatula is a clean, economical, and disposable spatula for chemical and biological material transfer, collection and manipulation. Available with double ended design has spoon/spatula on one end and a pick to break up clumps at the other or as a micro design with both ends as pick…

Closure has a turnover flange molded to grip outside of container neck, promoting a double seal in conjunction with annular serrations on a hollow plug. Annular serrations depress themselves against the inside wall of the bottle neck, making each serration a suction sealing point.Note: For extra…

Consists of a rubber coated dowel with a little give. The rubber allows better conformance of the film around the well area when sealing plates (Ensures sealing film covers all wells of a multiwell plate).

A 38 mum thick aluminum sealing foil film with a 38 mum layer of acrylic adhesive for use with 96 well plates. Fits inside the rim of raised-rim plates. AlumaSeal 96 sealing films have one partial-width end tab with no perforations. •Film dimensions are 127 mm x 78 mm (9.5 mm end tab) •Available…

These polypropylene syringes with Luer tips, may be used with any size needle. The rigid polyethylene plungers of these disposable syringes are slightly oversized, creating a tight seal against the walls of the semi-flexible PP barrel, as well as providing an exceptionally smooth draw. No…

•This narrow ring seal is an alternative to a PTFE joint sleeve •Greaseless protection for air- and moisture- sensitive compounds •Can be used for prolonged storage under vacuum •Slide easily onto medium and full length taper joints •Can be used with Keck® clip and similar metal joint clips …

The MilliSentials Lab Labeling System provides a complete laboratory labeling solution with laboratory grade labels, a compact WIFI capable printer, and custom-designed laboratory labeling software. The laboratory labels are capable of withstanding temperatures from -196°C (liquid…

The test is suitable for rapid determination of carbonate hardness. Carbonate hardness is part of the total hardness of water and is defined as that portion of alkaline earth ions present in the water for which there exists an equivalent amount of hydrogen carbonate ions and carbonate ions…

Reusable bottles without caps or pouring rings for the storage of reagents, chemicals, solutions, tissue culture media, etc. Made of Duran borosilicate glass, Type 3.3, for maximum chemical and thermal shock resistance.Optional pouring rings prevent drips when pouring from these bottles. Legal…

Clear glass dropping bottle with ground glass joint. The 1 mL dropper has 0.10 mL graduations. Synonyms: dropper bottle; dropper bottles

The recommended choice for use with organic chemicals and solvents, pressure applications, and cannulation techniques:Precision Seal septa are designed specifically for the rigorous requirements of chemical applications. •Precision fit: Precision Seal septa have a longer, tapered plug that seats…

ZapCap® CR Bottle Top FiltersZapCap®For filtration of medium volumes, cell culture media and HPLC solutions.Features and benefits: •Complete 500 ml units with tubing nozzle; for attaching to bottles (bottle-top) •Connection seals on any standard bottles 33 to 45 mm …

SealPlate ColorTab adhesive films consist of 50 mum thickness clear polyester. They minimize evaporation, prevent spillage and contamination between wells, and provide a secure seal for ELISA, EIA, and similar assays. These unique films include a color dot and white writing area on each end tab for…

Well-known as the best quality rubber turn-over closure with serrated stopper, Suba-Seal brand is available exclusively from Sigma-Aldrich. Ideal for air and moisture-sensitive chemistry procedures. After piercing with non-coring needle, rubber closes puncture, providing air and moisture tight seal…

The recommended choice for use with organic chemicals and solvents, pressure applications, and cannulation techniques:Precision Seal septa are designed specifically for the rigorous requirements of chemical applications. The main features of our septa seal: Precision fit: Precision…

Disposable transfer pipettes are a great way to transfer liquids without the worry of cross-contamination. Available in 19 styles, our extensive range is sure to have one that fits your needs. Available as non-sterile, sterile, or sterile and wrapped in packs of 10. •Unified design with built-in…

Used for analytical separations of larger quantities of materials. Materials to be separated are often applied as long streaks, developed, and recovered by scraping the adsorbent from the plate and eluting with a strong solvent.

Transparent plastic skin protects bottles from mechanical damage and leakage in case of breakage. Autoclavable to 135C, but do not use water for cooling in autoclave.Please note: Cap not included. Synonyms: bottle laboratory; lab bottle Legal Information: DURAN is a registered trademark of…

Semi-pierceable, and leaves minimal residue. Polyester films just 25 mum thick, clearer and marginally pierceable with single-channel pipettes for sample recovery. Dimensions are 54.0 mm x 141.0 mm. Legal Information: ThinSeal is a trademark of Excel Scientific, Inc.

For sampling turbine fuels, water or other liquids through Millipore Contamination Analysis Monitors prior to gravimetric or colorimetric analysis. The stainless sampler assembly plugs into a quick-release valve installed in the system line, which allows a measured quantity of liquid to pass…

Reusable bottles without caps or pouring rings for the storage of reagents, chemicals, solutions, tissue culture media, etc. Made of Duran borosilicate glass, Type 3.3, for maximum chemical and thermal shock resistance.Optional pouring rings prevent drips when pouring from these bottles. Legal…

Can be used as a staining chamber. Made of glass with lid. Compact size offers good plate visibility and minimal solvent use. Legal Information: Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Closure has a turnover flange molded to grip outside of container neck, promoting a double seal in conjunction with annular serrations on a hollow plug. Annular serrations depress themselves against the inside wall of the bottle neck, making each serration a suction sealing point.Note: For extra…

These polypropylene syringes with Luer tips, may be used with any size needle. The rigid polyethylene plungers of these disposable syringes are slightly oversized, creating a tight seal against the walls of the semi-flexible PP barrel, as well as providing an exceptionally smooth draw. No…