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Sulfur Dioxide in Beer
Sulfur dioxide or sulfite is contained in almost all types of beer. On the one hand, it occurs in beer as a natural result of yeast fermentation. On the other hand, it is also an agent used as an additive...
Segmented Copolymers of p-dioxanone, Glycolide, and Lactide: Advantages and Applications in Biomedical
Main features of p-dioxanone, glycolide and lactide based copolymers
Workflow for Preclinical Monoclonal Antibody Quantification
Pharmacokinetic (PK) kit enables a robust, high-throughput assay for quantification of human IgG1 antibody in animal sera by LC-MS/MS.
SPME-GC-MS Determination of Phthalate Esters in Ramen Noodle Flavor Packets
A sensitive, quantitative, and reproducible SPME-GC/MS procedure was developed by Supelco for the extraction of phthalate esters from oily food matrices, such as the flavored oils included with ramen noodle kits.
Improved Recoveries and Lower Background for GC/MS/MS and LC/MS/MS Analysis of Pesticides in Green Tea
A procedure for cleanup of green tea extracts provides low background and allowed for the analysis of more pesticides at lower levels than QuEChERS. Uses less solvents and no toluene.
Freezing and Thawing FBS and Other Sera
Protect your investment with best practices for storing and thawing FBS and other sera. Sample FBS for validation in your cell culture protocol.
Analysis of Pesticides in Turmeric Powder by LC/MS/MS and GC/MS/MS after Cleanup with Dual-Layer SPE Cartridge
Pesticide residue testing of turmeric and other (dried) spices is challenging due to their complex compositions and high matrix. An efficient SPE clean-up can be achieved by a new Dual-layer cartridge.
Extraction of Nitroimidazoles from Milk and Eggs using Molecularly Imprinted Polymers
In this report, SupelMIP SPE – Nitroimidazoles was evaluated for the extraction of nitroimidazoles and metabolites from milk and egg.
Analysis of Residual Solvents in Hemp Extract by Headspace SPME-GC/MS
The use of solid phase microextraction (SPME) allowed for the straightforward, fast, sensitive, and accurate GC/MS determination of the residual solvent content of spiked and unspiked samples of hemp extract.
Periodic Table of the Elements
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. From MilliporeSigma.
Magnetic Properties of Materials
Tutorial on the properties of magnetic materials.
Extraction and Analysis of Agricultural Pesticides from Oranges Using the “QuEChERS” Method
Extraction and Analysis of Agricultural Pesticides from Oranges Using the “QuEChERS” Method
Analysis of Isocyanates Using the ASSET™ EZ4-NCO Dry Sampler
The unique sampler design ensures that both the vapor phase and particulate isocyanates are captured and derivatized during sampling.
Analysis of Pesticide Residues in Cannabis Using QuEChERS Extraction and Cleanup Followed by GC/MS/MS Analysis
Compared to conventional PSA/C18/GCB cleanup, cannabis extracts cleaned with the Supel QuE Verde mixture showed lower GC/MS background, and better recoveries for many pesticides.
The Endothelial Cell Transwell Migration and Invasion Assay
Cell culture protocol: the endothelial cell transwell migration and invasion assay used to study angiogenesis and cancer cell metastasis. Explore over 350 PromoCell products.
Extraction and Analysis of Neonicotinoid Pesticides from Flower Blossoms Using Supel™ QuE and Ascentis® Express
Extraction and Analysis of Neonicotinoid Pesticides from Flower Blossoms Using Supel™ QuE and Ascentis® Express
Troubleshooting 2-D DIGE Results
Troubleshooting 2-D DIGE Results
Naive Pluripotent Stem Cell Culture in an Inhibitor Based 2i/LIF Containing Serum-Free and Feeder-Free Stem Cell Media
Naive pluripotent stem cells are located within the epiblast of mature blastocysts. These primitive “ground-state” cells may be cultured in vitro using specialized media and small molecule inhibitors.
Analysis of Tetrahydrocannabinol (THC) and Carboxytetrahydrocannabinol (THCCOOH) in Surface Waters by SPME and GC/MS
Analysis of Tetrahydrocannabinol (THC) and Carboxytetrahydrocannabinol (THCCOOH) in Surface Waters by SPME and GC/MS
Coupling Reagents
In principle, the seemingly simple formation of a peptide bond can be accomplished using all the procedures available in organic chemistry for the synthesis of carboxylic acid amides. However, due to the presence of various functional groups in natural and...
Sample Preparation for Size Exclusion Chromatography
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...
Sample Preparation in Ion Exchange Chromatography
This page clarifies sample preparation, buffer exchange and desalting, removal of lipoproteins, phenol red, and low molecular weight contaminants in Ion exchange chromatography.
Staudinger Ligation
The reaction between an azide and a phosphine forming an aza-ylide was discovered almost a century ago by Nobel Prize laureate Herrmann Staudinger.
Starbons: Cooking up Nanostructured Mesoporous Materials
Our strategy is to synthesize mesoporous carbonaceous materials (“Starbons”) using mesoporous expanded starch as the precursor without the need for a templating agent.
Sample Preparation for Chromatographic Purification
This page discusses various aspects of sample preparation for chromatographic purification.
MSI Testing and IHC
Colorectal cancer is a common occurrence among inhabitants of most Western countries, second only to carcinoma of the lung.
3D Cell Culture Tools and Techniques
3D cell culture overview. Learn about 2D vs 3D cell culture, advantages of 3D cell culture, and techniques available to develop 3D cell models
Lanthanide Ions as Photon Managers for Solar Cells
Spectral conversion for solar cells is an emerging concept in the field of photovoltaics, and it has the potential to increase significantly the efficiency of solar cells. Lanthanide ions are ideal candidates for spectral conversion, due to their high luminescence...
Sample Preparation for Affinity Chromatography in Specific Groups of Biomolecules
Sample Preparation for Affinity Chromatography in Specific Groups of Biomolecules
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