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Column Packing and Preparation for Hydrophobic Interaction and Reversed Phased Chromatography

This page discusses column packing and preparation techniques for reverse phase chromatography.

Maintenance of Multimodal Chromatography Media and Storage Conditions

This page describes the maintenance of media and storage conditions for multimodal chromatography using Cytiva products.

Manual Purification of Histidine-Tagged Proteins using His GraviTrap™ TALON® Columns

His GraviTrap™ TALON® columns are prepacked with 1 ml of TALON® Superﬂow medium. Each column provides simple manual puriﬁcation of up to 15 mg of histidine-tagged proteins.

Atto Dyes for Superior Fluorescent Imaging

Atto dyes are a series of fluorescent dyes that meet the critical needs of modern fluorescent technologies.

Cannabinoid CRMs: Testing Accuracy & Traceability

ISO-certified cannabinoid CRMs, THC and THCA, available as single components or mixes, for accurate potency testing.

Solution with 17 Amino Acids as TraceCERT^® Certified Reference Material

Technical article on "Solution with 17 Amino Acids as TraceCERT® Certified Reference Material"

Elemental Impurities - Certified Ref. Materials

Control elemental impurities in drug products with analytical methods and materials to ensure patient safety.

Importance of Volumetric Solution Standardization

The titer determination or standardization of a titration solution is essential for accurate and reliable titration results.

Synthetic Cannabinoid Analysis

A large variety of cannabinoid drug standards, along with an HPLC method with the Supelco Ascentis® Express RP-Amide column, are presented in this article.

Certified Reference Materials for ¹⁹F NMR

Introduction of 19F qNMR certified reference materials for complex molecule certification.

Ion Chromatography Instrument Qualification using IQ/OQ/PQ Kit

Explore key tests in ion chromatography qualification using a pre-packaged IQ/OQ/PQ kit with six certified bromide standards for IC performance checks.

Titripac® Sustainable Packaging for Ready-to-Use Certipur® pH Buffers

Learn about our ready-to-Use Certipur® pH Buffer solutions (4 L & 10 L), available in an innovative Titripac® sustainable packaging for a wide pH range of 1 to 12.

Integrity Test Kit User Guide

Integrity Test Kit verifies small volume filter units' integrity, enhancing filtration reliability in lab processes.

Universal Hydrophilic Syringe Filters: Millex^®

Millex® hydrophilic PTFE syringe filters offer broad chemical compatibility and robust performance for various sample filtrations.

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.

Nanoparticle Ultrafiltration

Filtration methods and membrane filter selection in nanoparticle purification and production.

Syringe Filters for Chromatography

Syringe filter selection guide for HPLC, UHPLC, and Ion Chromatography using pore size, filter diameter, chemical compatibility, analyte binding, and extractables.

Syringe Filters

Answers to common syringe filter selection questions, such as sterile vs non-sterile, how to use, membrane and housing types, and pore size.

Virus Concentration by Ultrafiltration

Ultrafiltration using Amicon® Ultra centrifugal devices for concentrating virus in preparation of high titer virus stocks and isolation of virus from samples.

Biodiesel

Learn more about Biodiesel as a renewable, alternative diesel fuel produced from vegetable oils, animal fats, or recycled restaurant grease.

Bioethanol

Learn more about Bioethanol as a renewable, alternative fuel traditionally produced by the yeast fermentation of sugar.

Effect of Container Materials on Milk Off-Flavors

HS-SPME with Carboxen®/PDMS coated Nitinol fiber allows low MW analyte detection in light-exposed milk plastics.

Exactly Why is Low Bleed Important for Capillary Columns?

Melamine Analysis via GC-MS

The analysis of melamine and related compounds in dog food with the use of more economical gas chromatography-mass spectrometry (GC-MS) instrumentation.

Principal Component Analysis (PCA) Evaluation of Seven Commercial Ionic Liquid Capillary GC Columns

In order to cover a broad range of possible solute-stationary phase interactions, 95 solutes with varied functional groups were selected to perform stationary phase characterization.

Proline Derivatization and Enantioresolution by Chiral GC

Chromatographic enantiomeric separation of amino acids, like proline, is described for chiral GC analysis after derivatization.

Radiello Sampler: Monitoring 1,3-Butadiene & Isoprene

Microbial test method development: Laboratory develops compliant methods for antimicrobial products, ensuring regulatory compliance and quality.

An LC/MS Peptide Standard for Rapid System Suitability Assessment and Retention Time Translation Across LC/MS Platforms

Standards are critical in liquid chromatography/mass spectrometry (LC/MS) based proteomics to ensure optimal and consistent system performance before, during, and after sample analysis.

Middle-Up Antibody Analysis by RP Chromatography

Compare columns in resolving medium-sized antibody fragments after digestion with DTT or IdeS using Reversed-Phase Chromatography for analysis.

Oligonucleotide Standard 6 Mix LC-UV Analysis

Chromolith® RP-18e columns optimize Oligo Standard 6 separation with varied flow rates and ion-pairing reagent evaluation.

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