LC-ESI-MS/MS method for the accurate quantification of eight nitrosamines in pharmaceutical products
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View abstract on PubMed
Summary
This summary is machine-generated.A new method reliably detects hazardous nitrosamine impurities in pharmaceuticals. This advancement is crucial for ensuring drug safety and protecting public health from carcinogenic contaminants.
Area Of Science
- Analytical Chemistry
- Pharmaceutical Science
- Toxicology
Background
- Nitrosamine impurities in drugs pose significant carcinogenic and mutagenic risks.
- International regulatory agencies classify nitrosamines as highly hazardous Class 1 substances.
- Detecting these impurities at trace levels is critical for pharmaceutical product safety.
Purpose Of The Study
- To develop a simple, efficient method for extracting and detecting nitrosamine impurities in pharmaceutical products.
- To minimize matrix effects during sample preparation and analysis.
- To ensure reliable identification and quantification of potential nitrosamines.
Main Methods
- High-Performance Liquid Chromatography (HPLC) coupled with tandem Mass Spectrometry (MS/MS).
- Utilized an Agilent 1260 series HPLC and an Agilent 6460 triple quadrupole MS.
- Employed an Inertsil ODS-3 C18 column and electrospray ionization with multiple reaction monitoring for quantification.
Main Results
- Achieved high correlation coefficients (r² ≥ 0.999) for eight nitrosamines.
- Determined low limits of detection (0.05-0.8 ng/mL) and quantification (0.1-2.0 ng/mL).
- Demonstrated satisfactory method validation including selectivity, accuracy, precision, and stability.
Conclusions
- The developed method reliably detects trace levels of potential nitrosamines in pharmaceutical products.
- This analytical approach significantly enhances pharmaceutical safety.
- The method serves as a valuable tool for ongoing nitrosamine impurity analysis in drug manufacturing.
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