Simplify Excipient Testing
MRR offers a simpler and faster way to identify and measure harmful residuals in common excipients.
Read the App Note
What You'll Learn
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PEG Without the Headaches
How BrightSpec-MRR™ eliminates the dilution, filtration, and derivatization steps that slow down GC/MS workflows.
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High Confidence
How BrightSpec-MRR™ achieves LOQs that meet USP acceptance thresholds for ethylene oxide and acetaldehyde.
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Fast, Parallel Analysis
How headspace-MRR delivers results in under a minute per analyte with up to 8 samples running simultaneously.
Problem and Solution
Problem
PEG is essential across pharma and consumer products, but its viscosity makes impurity testing slow and error-prone. Traditional GC/MS requires dilution, filtration, and complex method development, all while regulators push for stricter testing.
Solution
BrightSpec-MRR™ delivers direct, chromatography-free analysis of ethylene oxide and acetaldehyde. With headspace sampling, results are clear, fast (40–60 seconds), and meet USP thresholds—offering confidence and efficiency in a single platform.
Resources
App Note
EG and DEG in PEG-400
Learn how Headspace-MRR delivers a new level of simplicity and reliability to excipient testing.
Webinar
Rapid & Reliable Excipient Safety Testing with MRR
Learn how MRR provides a breakthrough approach for quantitation of residuals without the limitations of conventional gas chromatography.
App Note
Ethylene Oxide and Acetaldehyde in PEG-3350
Tracking Ethylene Oxide and Acetaldehyde in PEG-3350 How Molecular Rotational Resonance Spectroscopy Outpaces Gas Chromatography
App Note
EG and DEG in PEG-400
Learn how Headspace-MRR delivers a new level of simplicity and reliability to excipient testing.
Webinar
Rapid & Reliable Excipient Safety Testing with MRR
Learn how MRR provides a breakthrough approach for quantitation of residuals without the limitations of conventional gas chromatography.
App Note
Ethylene Oxide and Acetaldehyde in PEG-3350
Tracking Ethylene Oxide and Acetaldehyde in PEG-3350 How Molecular Rotational Resonance Spectroscopy Outpaces Gas Chromatography