Application Notes: General
Advancing Environmental Analysis
Modelling Peptide and Protein Retention Times
We present retention-time models for peptides and proteins that link their elution times to solvent fraction and temperature.
Addressing the Challenges of Microplastic Characterisation
This application note demonstrates the quantitative analysis of microplastics using direct thermal desorption (TD) combined GC–MS.
Tips for Regulated Laboratories, Part 2
Detecting Cork Taint with Pegasus® BT
The low sensory threshold of 2,4,6-tricholoranisole (TCA), a major contributor of wine cork taint, is hard to detect without a sensitive instrument like the Pegasus® BT.
Separation, chemical identification, and size characterization of nanoplastic particles using Raman microscopy and FFF-MALS
Here we present an innovative approach for the characterization of nanoplastic particles using centrifugal field-flow fractionation coupled with UV, multi angle light Scattering detection, and raman microscopy.
Boosting LC Method Efficiency with Allowable Compendial Adjustments
Method Validation for Atrazine Analysis
A highly sensitive, validated method for atrazine determination in different water types using the QSight 420 LC–MS/MS employed a simple filtration and direct injection.
Analysis of Challenging Polar Contaminants in Water
Using the LX50 UHPLC and QSight 420 triple quad MS, three analytical methods were developed to provide sensitive, reproducible results without the need for pre-concentration steps.
Analysis of PPCPs in Drinking Water
A methodology for a sensitive and repeatable analysis of PPCPs in drinking water utilizing the QSight SP50 Online SPE system coupled to a QSight 220 MS/MS.
Halo Acetic Acid Identification by Ion–Exclusion
Accurate detection of HAA’s is paramount for the prevention of over oxidation, while still managing enough water sanitation to eliminate water borne pathogens.
Characterization of Polymer Additives
Combining the benefits of the ACQUITY APC System with the ACQUITY UPLC Refractive Index (RI) Detector and the ACQUITY QDa Mass Detector yields laboratory efficiencies.
Column Screening for UPLC Separation
The selection of appropriate column chemistries to separate eighteen polymer additives are routinely monitored in extractables and leachables (E&L) workflows.
Aiding Lithium Ion Battery Electrolyte Design
A flexible analytical system was used in conjunction with a well-defined informatics workflow to elucidate degradation markers in Li-Ion battery electrolytes.
Two-Dimensional Liquid Chromatography for Polymer Applications
Combining the APC System with WinGPC UniChrom™ software allows researchers to increase the peak capacity of their research.
Accelerating Additive Manufacturing Breakthroughs
Collaborative efforts at Virginia Tech University drive better materials through polymer innovation and additive manufacturing.
How to Avoid Contamination in Pipetting
Preventing aerosol contamination during pipetting helps you achieve reliable results. Here we address the main contamination mechanisms that need to be avoided.
Structural Characterization of Functional Polymers via Light Scattering and Differential Viscometry
Monitoring VOC Emissions From Respiratory Medical Devices
Monitoring of potentially harmful VOCs and SVOCs emitted from respiratory medical devices, in accordance with the ISO 18562 standard.
Thermal Desorption Applications Guide: Fragrance and Odour Profiling
A comprehensive guide to assessing the odour profiles of products and materials using thermal desorption.
Quantitative Analysis of Microplastics in Bottled Drinks
Using TD with GC–MS to analyse microplastic samples, detailing the analysis of bottled beverages to measure the leaching of PET from the plastic bottle into the beverage.
Analysis of Fragranced Consumer Products
The complementary roles of dynamic headspace and sorptive extraction in the analysis of fragranced consumer products using TD–GC–MS.
Promoter or Polluter? Separation of Triazines on HxSil C18 Column
The Development of Biopharmaceuticals and the Impact on Separation Scientists
A Rainbow of Synthesized Color
Synthetically derived food and beverage dye analysis to meet regulatory requirements aimed at reducing the risk of allergies, cancers, and attention deficits.
Determination of Epoxy Resin Polymers
This application note describes the molecular weight determination of different polymer samples under micro-GPC conditions with up to 80% less solvent consumption.
Navigating the Digital Journey
Advances in Gas Chromatography for Separation of Challenging Analytes in the Pharmaceutical, Environmental, Cannabis, and Food Industries
Gas Chromatography Method Advancements for the Analysis of Environmental Matrices in the Industrial Landscape
Quantitative Analysis of Explosives by TD–GC–MS
This application note demonstrates quantitative analysis of explosive standards by thermally desorb the sample into a GC-MS by a CDS 7550S system.