Calibration, qualification, and validation

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High-Performance Thin-Layer Chromatography: A Fast and Efficient Fingerprint Analysis Method for Medicinal Plants

In this article we present several HPTLC applications and analytical standards for ginsenosides.

Quick, Sensitive LC/MS/MS Analysis of Aflatoxins in Cannabis

Analyte recovery values from spiked cannabis extracts ranged from 102 to 127% with RSD below 12% for 3 replicates. Excellent recovery values were even observed for Aflatoxins B2 and G2 which were spiked at a low level of 6.1 ppb.

Reference Standards for Analyzing Polyphenol Catechins

Enzymatic Method for Determining Branched Chain Amino Acids (BCAA Assay)

Assay protocol for the colorimetric detection of Branched Chain Amino Acids (BCAA) in biological samples using the alanine assay kit.

Calculating Your Working Tolerance: A Guideline

Guideline to calculate your working tolerance - Certified Standard Solutions (CRM)

Quantification of Infliximab in Human Serum by LC-MS/MS Using A Full-Length Stable Isotope Labeled Internal Standard

Infliximab, a chimeric monoclonal antibody, is used to treat rheumatoid arthritis, psoriatic arthritis, Crohn’s disease, and other autoimmune diseases.

Analysis of Tetrahydrocannabinol (THC) and Carboxytetrahydrocannabinol (THCCOOH) in Surface Waters by SPME and GC/MS

Columns and Analytical Standards for Protein SEC

Size-exclusion chromatography (SEC) columns and ready-to-use standards facilitate method development and increase robustness of protein SEC methods.

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.

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.

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.

Analysis of Pesticides in Baby Food by Solid Phase Microextraction (SPME) Using a New Overcoated Fiber

A direct immersion SPME method using a new overcoated SPME fiber was developed for the extraction of pesticides from pureed prune baby food.

Biomolecular NMR: Isotope Labeling Methods for Protein Dynamics Studies

We presents an informational article concerning biomolecular NMR and the use of Isotope Labeling Methods for Protein Dynamics Studies.

Mixed-Mode SPE Improves Extraction of Pharmaceutical Compounds from Biological Fluids

Drinking Water Testing by Ion Chromatography using Ultrapure Water

This study reviews the suitability of ultrapure water for the IC analysis of drinking water. Inorganic ions and disinfectant by-products (DBPs) were assessed.

Certified Reference Materials for ¹⁹F NMR

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

HPLC Method for Cannabinoid Analysis in Hemp

HPLC methods for efficient cannabinoid analysis in hemp flower samples.

Elemental Impurities - Certified Ref. Materials

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

Workflow for Pesticide Analysis in Cannabis

Complete workflow for cannabis flower pesticide testing using LC-MS/MS and GC-MS/MS ensures product safety.

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.

Radiello Sampler: Monitoring 1,3-Butadiene & Isoprene

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

Cannabis Potency Testing: Method Dev. & Cost Considerations

Overview of gradient HPLC-based cannabinoid analysis optimized for key method parameters.

Multiplex Quantification of Infliximab & Adalimumab

Monoclonal antibodies Infliximab and Adalimumab target TNFα for treating rheumatoid arthritis and autoimmune diseases.

Fast Vitamin D Metabolite Analysis

Vitamin D deficiency affects bone health, highlighting its vital role in calcium absorption and bone growth.

Improving the Chromatographic Separation of DMB-Labeled Sialic Acids for the Comparison of Biosimilars to Reference Materials

A significantly improved HPLC-fluorescence method for DMB-NANA and -NGNA, and application of this method to compare 2 candidate biosimilar therapeutic proteins to their respective RMs.

Cannabinoid CRMs: Testing Accuracy & Traceability

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

Analysis of California Cannabis List of Pesticides, Mycotoxins, and Pyrethrins Using Ascentis® Express Biphenyl Column

Cannabis testing regulations include analysis of purity, potency, and contaminants. Learn more about analysis of cannabis for pesticides, mycotoxins, and pyrethrins registered in California by LC-MS/MS and GC-MS/MS Using Ascentis® Express Biphenyl and SLB®-5ms Columns

Choosing Correct Reference Material Quality Grade

Choose ideal reference materials for analytical testing needs, whether for calibration or quantitative analysis, ensuring accuracy and reliability.

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.

The Proper Storage and Handling of Volatile Analytical Standards

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

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