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GC Injection Port Septa: Use, Maintenance, Storage and Handling

Proper handling and preventative maintenance instructions for injection port septa; tips to improve the performance of gas chromatography instruments.

Retentate filtration with Millicup™-FLEX disposable vacuum filtration units

Methods and tutorial video for filtration techniques in contamination analysis using a faster alternative to glass vacuum filtration systems.

Non-volatile and Volatile Buffer Systems

This page shows volatile and non-volatile buffer suggestions for anion and cation exchange chromatography.

Selection of Purification Equipment

This page covers the standard ÄKTAdesign configurations for simple IEX chromatography.

Resolving by Mass

Traceable Organic Certified Reference Materials for P-31 qNMR

The use of CRMs for the NMR quantification of phosphorylated organic compounds and metabolites offers several advantages as it is based on a signal comparison of the analyte with an internal or external reference standard.

Reference Standards for Analyzing Polyphenol Catechins

Ion Exchange Methodology

Ion Exchange Methodology in Sold Phase Extraction, Counter Ion Selectivity & Ion Exchange and the basic steps.

Supel™-Select Polymeric SPE

Supel-Select HLB SPE - a hydrophilic modified styrene based polymer developed for the solid phase extraction of a broad range of compounds from aqueous samples.

SupraSolv® GC Solvent Specifications

Our GC solvents have been specially developed and tested for ECD, FID and MS detection or for headspace gas chromatography to ensure accurate, reliable and reproducible analytical results.

Hopane Reference Standards for use as Petrochemical Biomarkers in Oil Field Remediation and Spill Analysis

We provide high-quality, relevant hopane reference standards to be used as biomarkers for petrochemical oil field remediation and spill analysis.

High-Performance Quantitative H-1 NMR

The signal ratio of two different protons can be measured with tremendous precision, which enables the generation of certified reference materials for use as qNMR standards.

Primary Human Preadipocytes and Preadipocyte/Adipocyte Growth & Differentiation Media

Primary human white preadipocytes and culture media for the expansion of undifferentiated preadipocytes, differentiation to adipocytes, and cultivation of mature adipocytes. Protocols for handling, cell passaging, media, and product use.

PromoCell® Primary Cell Pellets

Primary cells from PromoCell are available in pelleted form for research applications like gene expression analysis, and cell/protein characterization experiments.

ECACC Nucleic Acids

DNA, RNA, cDNA derived from ECACC mammalian cell lines allow screening for genes or expression patterns to identify lines most suitable for specific research.

Oligonucleotide Quality Control by Analytical HPLC

In many cases oligonucleotides require quantitative analysis to verify specifications have been met. MALDI-TOF and ESI-MS can provide qualitative-quantification for purity.

Restriction Enzyme Cloning Glossary

Definitions and Genotypes of e-coli

Genotypes of Selected E. coli strains in molecular biology

Genotypes, Phenotypes and Markers

A genotype is a list of mutant genes in an organism. In addition to mutations of the genome, other genetic elements such as prophage or plasmids can also be included.

Cloning & Expression Vectors

Expression Vectors for Bacterial, Mammalian and Insect Cell Systems. Featured are a variety of tags, promoters and elements for secretion, transient, stable and bicistronic expression.

Graphene-Based Composites and their Unique Renewable Energy Applications

Graphene is a unique two-dimensional (2D) structure of monolayer carbon atoms packed into a dense honeycomb crystal that has attracted great interest due to its diverse and fascinating properties.

Understanding and Successfully Applying Materials for Dye-Sensitized Solar Cells

While dye sensitization as the basis for color photography has been accepted for a very long time,1 attempts to use this principle for the conversion of solar light to electricity generally had resulted only in very low photocurrents, below 100

Mechanochemical Effect of Severe Plastic Deformations: Metal Alloys, Hydrides and Molecular Solids

Soluble Pentacene Precursors

Fabrication procedure of organic field effect transistor device using a soluble pentacene precursor.

Anti-HA Troubleshooting

Protein Visualization

Prior to probing a membrane using precious antibodies, it is helpful to visualize the transferred proteins on the blot to ensure complete transfer and even loading. This page describes possible causes and potential remedies for challenges encountered during protein visualization.

Loading Controls for Western Blotting

Loading controls in western blotting application.

Alkaline Phosphatase

We offer a broad range of alkaline phosphatase enzymes and substrates that are optimized for conjugation to antibodies and other proteins for your specific application needs.

Using Conjugated and Secondary Antibodies

Using conjugated antibodies and secondary antibodies in the lab.

Immunohistochemistry Applications in Gastrointestinal Cancer

Colorectal cancer is the third most common cancer in both men and women. An estimated 136,000 cases of colorectal cancer are expected to occur in 2016.

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