Amino Acid Analysis is the suitable tool for precise determination of protein quantities but also provides detailed information regarding the relative amino.
Supel Tox AflaZea SPE produced exceptional analyte recoveries with good reproducibility for all aflatoxins while requiring less than half the sample volume required by competing products.HPLC analysis of all spiked samples after SPE cleanup showed that all compared SPE cartridges
Professor Randal Lee (University of Houston, USA) discusses design considerations for iron oxide magnetic nanospheres and nanocubes used for biosensing, including synthetic procedures, size, and shape. The effects of these variables are discussed for various volumetric-based and surface-based detection schemes.
Glyphosate and related compounds are measured in oatmeal and infant cereal using ion-exchange polymer-based particles for HPLC and SPE. Low level detection was obtained.
Advances in the electrochemical conversion of water to and from hydrogen and oxygen have principally been achieved through the development of new materials and by understanding the mechanisms of the degradation of proton exchange membrane fuel cells (PEMFC) during operation.
Our Universal Transfection Reagent is a unique formulation of a proprietary polymer blend used for transient and stable transfection of nucleic acids into various eukaryotic cell lines and hard-to-transfect primary cells. This is a fast and easy protocol is compatible
A simplified LC-MS/MS method to determine glyphosate and related compounds using a Supel™ Carbon LC U/HPLC column for stability under higher pH conditions and sufficient retention for the polar analytes in the presence of methanol as an extraction solvent.
The odor and pungency of ginger is due to the presence of terpenes, gingerols and shogaols. These compounds contribute to the highly complex matrix of ginger, which subsequently presents a challenge in low level analyses of contaminants. A novel 2-layer
Quantitative PCR (qPCR) and qRT-PCR reagents and kits that are designed to deliver maximum efficiency and reliable results from a variety of genetic materials.
Protein synthesis using cell-free protein synthesis reagent kit consists of three stages: preparation of transcription template, transcription and translation.
Download the Periodic Table of the Elements with names, atomic mass and number in printable .pdf and image format. Use the periodic table chart by element names in alphabetical order for quick research, reference and lab use.
A significantly improved HPLC-fluorescence method for DMB-NANA and -NGNA, and application of this method to compare 2 candidate biosimilar therapeutic proteins to their respective RMs.
Myokine analysis with multiplex immunoassays, such as the MILLIPLEX® Human Myokine Panel, allow researchers to simultaneously measure multiple muscle-secreted factors, providing more insights into related diseases.
3D mammosphere culture protocol used to expand human MCF-7 and MDA-MB-231 breast cancer cells in serum-free/xeno-free stem cell culture media. Explore over 350 PromoCell products on Sigma.com.
Solid state and materials chemistry have made a tremendous impact and have experienced growth in recent years, particularly for rare earthcontaining materials.
This white paper illustrates the importance of three-dimensional (3D) cell culture in the production of pluripotent stem cell (PSC)-derived models of embryo development and differentiation. It contains a general overview of embryoid bodies (EBs) and a comparison between the various
Humankind has utilized protein materials throughout its existence, starting with the use of materials such as wool and silk for warmth and protection from the elements and continuing with the use of recombinant DNA techniques to synthesize proteins with unique
Samples for chromatographic purification should be clear and free from particulate matter. Simple steps to clarify a sample before beginning purification will avoid clogging the column, can reduce the need for stringent washing procedures, and can extend the life of
Use the calculator to determine the boiling point or pressure of solvents based on the Antoine Equation and see solvent attributes. View a list of products based on the solvent CAS number.
Here we introduce the Triphenoxazoles, a new class of organic electron donor-acceptor materials that can both be manipulated to change the electronic properties of the donor and acceptor with the consequent modulation of their HOMO/LUMO and properties, such as Stokes
Bisphenol A (BPA) is suspected to be an endocrine disruptor. Regulations on specific migration limits (SML) from food contact materials are getting tighter (EU 2018/213) requiring more sensitive determinations. An overcoated SPME fiber provides the durability necessary for direct