Recirculating Chillers
Sigma Aldrich Fine Chemicals Biosciences Tris2-carboxyethylphosphin
Tris(2-carboxyethyl)phosphine immobilized onAgarose CL-4B Trialkylphosphines (TCEP) are highly effective agents for reducing disulfide bonds in proteins peptides and other disulfide bondcontaining molecules and are relatively non-reactive toward other functional groups. The trialkylphosphine TCEP was first described by Levison et al. as an odorless and efficient reductant of alkyl disulfides over a wide pH range. TCEP is stable in aqueous SOLUTIONons and does not undergo the rapid oxidation that often occurs with other reducing agents such as dithiotreitol (DTT) and beta-mercaptoethanol (BME 2-ME). TCEP does not interfere with commonly used sulfhydryl-reactive reagents (e.g. maleimide crosslinkers). Nevertheless many protocols require recovery of the reduced sample separate from the reducing agent. Our Tris(2-carboxyethyl)phosphine immobilized on Agarose CL-4B eliminates the need to use laborious and troublesome gel filtration methods to separate the reduced sample from the reduci
Sigma Aldrich Fine Chemicals Biosciences DuranR GL 45 connection sy
GL 45 screw cap with either two or three ports that have GL 14 thread. This is a flexible modular system which has four different hose diameters available 1.6 mm 3.0 mm 3.2 mm and 6.0 mm that can be connected.Sterile pressure equalization is possible through use of membrane filter.
Sigma Aldrich Fine Chemicals Biosciences Optimizer insert for spinn1EA
Precision adapter holds 3 mm 4 mm and 4.25 mm NMR tube in a 5 mm spinner turbine. Does not include spinner turbine.
Sigma Aldrich Fine Chemicals Biosciences NorellR Select SeriesTM 3
The high-throughput NMR tubes are ideal for reducing salt effects when running buffered SOLUTIONons for bio-samples. They are made from ASTM Type 1 Class A borosilicate glass for reproducibility and durability and are specially designed for one time use for routine NMR.
Sigma Aldrich Fine Chemicals Biosciences L-Argininosuccinic acid li10MG
REAGENT L-Argininosuccinic acid li10MG
Sigma Aldrich Fine Chemicals Biosciences EppendorfR Protein LoBind
EppendofR EppendorfR Protein LoBind
Sigma Aldrich Fine Chemicals Biosciences AldrichR antisplash splash1EA
These traps greatly reduce carry-over from foaming or bumping. Anything that may climb can return back down through the return hole at the bottom of this adapter.Application for use between the vapor tube and rotary evaporator flask to prevent solvent from being drawn into condenser in case of bumping. A drain hole at the base of the inner tube allows solventt to drain back into the evaporation flask.
Sigma Aldrich Fine Chemicals Biosciences ButojectTM butyl gloves si
Butoject is a highly flexible and effective chemical protective glove made of Butyl rubber suitable for extreme demands for work with esters and ketones. With a thickness of merely 0.30 mm and very good cold flexibility Butoject is very comfortable to wear and allows good dexterity. To improve the grip on smooth and wet parts this glove has an additionally roughened surface.Very good protection against extremely aggressive chemicalsErgonomic fit and high elasticity ensures excellent wearing comfortRoughened surface for firm grip when wetGood mechanical resistanceCE compliant
Sigma Aldrich Fine Chemicals Biosciences TrizmaR hydrochloride solu1L
A series of Pre-mixed SOLUTIONons of TRIZMA Base and TRIZMA HCl to provide commonly used pH values for Tris buffers. No mixing or pH adjustment necessary. Guaranteed accuracy /- 0.1 pH units.
Sigma Aldrich Fine Chemicals Biosciences 3355-Tetramethylbenzidine
3 3I 5 5I -Tetramethylbenzidine (TMB) is a chromogenic substrate for horseradish peroxidase (HRP) conjugates. It develops a permanent insoluble dark blue reaction product and is useful in colorimetric quantification.
Sigma Aldrich Fine Chemicals Biosciences EppendorfR Membrane filter
EppendofR EppendorfR Membrane filter
Sigma Aldrich Fine Chemicals Biosciences Sticky Pads and Accessorie1EA
STICKY Sticky Pads and Accessorie1EA
Sigma Aldrich Fine Chemicals Biosciences HiLoadR 26/600 SuperdexR 2
HiLoad(R) 26/600 Superdex(R) 200 prep grade are prepacked XK columns designed for high-resolution preparative gel filtration chromatography. The column is an excellent choice highly suitable for separating MAbs from dimers and contaminants.Superdex(R) prep grade (pg) is produced by covalent bonding of dextran to highly cross-linked agarose.The separation properties of these media are determined by the dextran component. Steep selectivity curves give excellent resolving power for peptides and proteins in the molecular weight ranges Mr < 10 000 (Superdex(R) 30 pg) Mr 3 000 to 70 000 (Superdex(R) 75 pg) and Mr 10 000 600 000 (Superdex(R) 200 pg). The medium combines high mechanical strength with high hydrophilicity allowing high flow rates and minimal nonspecific interactions.
Sigma Aldrich Fine Chemicals Biosciences HellmaR fluorescence cuvet1EA
with PE stopper aperture 5mm x 2mm rectangular