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Characterization of Stable Isotope Caffeine as Reference Material for Isotope Dilution Mass Spectrometry

This technique is based on the direct proportionality of mass fraction ratio and signal intensity ratio of the natural isotope and the C-13 labeled caffeine.

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.

Extractables Studies of Single-Use Equipment Immediate Identification and Quantification of Unknown Extractables by GC/MS with a Certified Reference Material Mix for Extractables and Leachables

Identification and quantification of the most common extractables originating from single-use equipment by GC/MS and an Extractables and Leachables Screening Standard.

Extractables Study with LC-UV/MS

Ascentis® C18 column facilitates LC-UV/MS analysis of extractables from single-use systems, ensuring reliable identification and quantification.

Flame Retardant Analytical Standards

Flame Retardant Standards: PBDE Standards. Polybrominated diphenyl ether standards accompany our chromatography products for this important 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.

Isotopically Labeled Steroid Standards

Anabolic steroid testing remains crucial in competitive sports to maintain fairness.

New Certified Reference Materials for Proteins

CRMs of milk proteins aid accurate testing for infant formula, ensuring compliance and quality control.

New cis/trans FAME Standard for GC Optimization

AOCS and AOAC methods for trans fatty acid composition require highly polar cyanosilicone capillary columns.

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.

NMR Reference Standards

NMR reference standards ensure proper instrument performance. Review key operational parameters for these standards such as pw90, sensitivity, resolution and line shape.

P-I-A-N-O Standards for Detailed Hydrocarbon Analyses

This is an article concerning P-I-A-N-O standards for detailed hydrocarbon analyses.

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.

The Proper Storage and Handling of Volatile Analytical Standards

Properly storing and handling standards is critical to achieving accurate and reproducible analytical results.

Reference Standards for Analyzing Polyphenol Catechins

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.

Evaluation of Millex^® Syringe Filters for Nitrosamine Impurities Testing in Pharmaceutical Drugs

An overview of nitrosamine impurity testing, worldwide regulations, and key considerations in filter selection for sample preparation and analysis.

The Importance of Filtration in Ocean Water Research and Environmental Testing

Learn how Sterivex™ pressure-driven sterile filters can be used for large-volume sample processing in environmental research and testing.

Membrane Learning Center

Membrane filters for sample preparation and analysis are discussed, emphasizing chemical compatibility and selectivity.

Dissolution Testing Filtration

Hydrophilic PTFE Millex® syringe filters ensure accurate dissolution testing and sample preparation for HPLC analysis.

Factors Affecting Analyte Binding on Membrane Filters: A Guide for Filter Validation in Pharmaceutical Analytical QC

Syringe membrane filter selection and validation methods to assess analyte loss due to membrane filter adsorption in pharmaceutical quality control (QC) testing.

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.

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