A Comprehensive Review of Analytical Methods for Volatile Organic Compounds (VOCs) in Ambient Air

Volatile Organic Compounds (VOCs) are critical atmospheric pollutants that contribute to ozone formation and secondary aerosol generation, significantly impacting regional air quality. Accurate measur

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Standardized Pre-Repair Inspection Protocol for Laboratory Instruments

Disconnect main power and unplug cables For high-voltage devices: Ensure capacitor discharge (use discharge rods) For pneumatic/hydraulic systems: Close valves and depressurize lines

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Analysis of Factors Influencing the Price of Second-Hand Gas Chromatography-Mass Spectrometers and Explanation

As a critical tool in scientific research and industrial testing, the price fluctuations of second-hand GC-MS instruments are influenced by multiple factors. This article systematically examines the p

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Analysis of Core Differences Between Triple Quadrupole LC-MS and Traditional Mass Spectrometers

As a hallmark of modern analytical technology, the triple quadrupole liquid chromatography-tandem mass spectrometer (LC-MS/MS) exhibits fundamental differences from traditional mass spectrometers in t

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Common HPLC Fault Diagnosis and Systematic Solutions

Column degradation: Replace C18 column after 2,000 runs (pH>8 accelerates damage) Extra-column effects: Use ≤30cm PEEK tubing (0.13mm ID)

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Design Analysis and Safety Assurance Strategies for Second-Hand HPLC Column Ovens

The column oven in High-Performance Liquid Chromatography (HPLC) systems is a critical component ensuring separation reproducibility and detection accuracy. For second-hand equipment, performance and

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