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Updated: Jun 12, 2026

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow
09:04

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow

Published on: April 18, 2019

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在一系列新方法方法 (NAMs) 中测试一组和多基基物质 (PFAS) 库的洞察力

Grace Patlewicz1, Richard Judson1, Katie Paul Friedman1

  • 1Center for Computational Toxicology & Exposure (CCTE), U.S. Environmental Protection Agency, Research Triangle Park, NC, USA.

Journal of toxicology and environmental health. Part B, Critical reviews
|July 7, 2025
PubMed
概括

这项研究使用替代模型选了150种per-和多基基物质 (PFAS),以开发危险评估类别. 该研究旨在有效地优先考虑PFAS进行进一步的毒理学研究和风险评估.

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Methods to Assess Microbial Populations01:30

Methods to Assess Microbial Populations

Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a visible...