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Calculators & Apps
Calculators & Apps
SMCxPRO™ Immunoassay Instrument and SMC™ Kits
High Sensitivity Protein Measurement at the fg/mL level
Synonym: SMC, Singulex, single molecule counting, xPRO
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HPLC Analysis of Protein Standards (1) on BIOshell™ A400 Protein C4
For use as a marker in SDS-PAGE; Albumin from chicken egg white, For use as a marker in SDS-PAGE; L-Lactic Dehydrogenase from rabbit muscle, Type XI, lyophilized powder, 600-1,200 units/mg protein
Benefits of Ascentis Express Phenyl-Hexyl over Biphenyl for the Separation of Pain Management Opiates
Although both biphenyl and phenyl-hexyl phases can resolve these compounds, the former exhibits excellent peak shape and substantially less silanol-derived ion exchange activity.
Two Distinct Sample Prep Approaches to Overcome Matrix Effect in LC/MS of Serum or Plasma Samples
This article highlights the impact that sample matrix effects can have on LC/MS response and discusses two novel approaches to reduce it.
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.
QuEChERS
QuEChERS
1-hydrosilatrane
As a versatile hydride reagent, 1-hydrosilatrane can be used in reduction reactions to synthesize alcohols, amines, their chiral counterparts, and esters from aldehydes/ketones.
Fibroblast Growth Factor Family (FGF)
Fibroblast growth factors in cell culture and various growth factors for your research
Understanding and Optimizing PCR eBook Download
PCR success can vary greatly depending on sample prep, reagent purity, and experimental design. This eBook covers key factors in PCR optimization including:
Selectophore Ionophores
Sigma-Aldrich.com presents an article on Selectophore Ionophores
Determination of Stevioside and Rebaudioside A in Stevia leaves, beverages and food additives using HPTLC-MS
HPTLC-MS was used to analyze stevioside and rebaudioside in artificial sweeteners, stevia plants, cola and isotonic drinks with a minimum of sample preparation.
Rapid Determination of Protein Binding Affinity Using Solid Phase Microextraction
Accurate protein binding affinities were measured using bioSPME more rapidly than membrane dialysis (RED) techniques. Binding affinities correlated to the reference values.
Reference Standards for Analyzing Polyphenol Catechins
Reference Standards for Analyzing Polyphenol Catechins
Ascentis® Express Biphenyl UHPLC and HPLC Columns
The bonded, densely endcapped, dimethyl-biphenyl stationary phase of Ascentis® Express 90 Å Biphenyl, based on fused-core particles, provides a stable, reversed phase packing with enhanced π-π and mild steric interactions due to the two sequential phenyl groups bonded to the
Phosgene and Phosgene Substitutes
Phosgene is 170 times more reactive than TP, the main phosgene substitute. Therefore, reactions with phosgene can be carried out under much milder conditions than with TP. Compounds will react faster and at lower temperatures (often at -78°C), preserving sensitive
BINAP/SEGPHOS® Ligands and Complexes
We present an article concerning BINAP/SEGPHOS® Ligands and Complexes.
Evolving View of Natural Flavors
All natural is a common claim on food in the US and other regions, but what does this really mean?
Alkali Metal Silica Gels from SiGNa
SiGNa Chemistry has recently developed a technology for encapsulating alkali metals into nano-structured porous oxides to create stable, free flowing powders with varying reactivities (based on the intended application).
Mild Mg – Halogen Exchange
Substantial progress has been made in magnesium–halogen exchange reactions used for the preparation of functionalized Grignard reagents containing sensitive moieties such as ester or cyano groups.
Cultivation of Shigella
Shigella spp. are predominantly connected to humans and are rarely isolated from other animals, with the exception of primates.
Get in Touch with our Kombucha Experts
Please let us know how we can further help you with your kombucha or beverage testing needs and we'll get back to you shortly.
Passive Air Sampling Tubes for US EPA Method 325
Supelco's FLM Carbopack X TDU tubes are designed for monitoring volatile organic compounds emitted from petroleum refineries, in compliance with US EPA Method 325.
radiello® Diffusive Air Sampling Application - Ammonia
radiello® Diffusive Air Sampling Application - Ammonia
Jamison Nickel (II) Precatalysts
The Jamison group has developed a library of bench-stable phosphine-containing nickel(II) precatalysts that are converted into active catalysts in situ.
Oxidizing and Reducing Agents
Oxidation and reduction reactions are some of the most common transformations encountered in organic synthesis
Navigating Fragrance Allergens
Food allergens are well known and codified by most global food regulatory agencies. Regulators and consumers require that food allergens be clearly displayed on packages.
Chiral Disulfonimides for Asymmetric Counteranion-directed Catalysis (ACDC)
Asymmetric counteranion-directed catalysis (ACDC) has a number of valuable applications in enantioselective synthesis.
Lithium Aminoborohydride (LAB) Reagents
Lithium aminoborohydride (LAB) reagents are a new class of powerful and selective reagents developed in the laboratory of Professor Bakthan Singaram at the University of California, Santa Cruz.
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