回顾历年315案例，哪些仪器在默默“站岗”？

Core Viewpoint - The article emphasizes the crucial role of scientific instruments in exposing consumer fraud and ensuring food safety, highlighting their importance in the annual CCTV 3.15 Gala, which reveals various illegal practices in the industry [2][14]. Group 1: Food Safety Violations - The 2025 CCTV 3.15 Gala exposed the excessive use of phosphates in shrimp products, with some manufacturers adding up to 145% more than allowed, resulting in a water retention rate of 20%-30% [3]. - The article discusses the black market for refurbished sanitary napkins and diapers, where substandard products are resold as "second-class" items, yielding profit margins exceeding 400% [5]. - The use of chemical fragrances to mimic the aroma of Thai rice was revealed, with some companies selling thousands of tons of this "fragrant rice" annually [6][8]. Group 2: Scientific Instruments in Detection - Ion chromatography has been established as a key tool for detecting excessive phosphates in seafood, supported by a comprehensive standard testing system in China [3]. - Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) are highlighted as essential for identifying heavy metal contamination in recycled materials used in sanitary products [5]. - Gas Chromatography-Mass Spectrometry (GC-MS) is noted for its effectiveness in detecting fraudulent food products, such as the "fragrant rice" scandal, by analyzing specific chemical compounds [6][8]. Group 3: Regulatory Measures and Standards - The article mentions the introduction of new standards for identifying starch sources in food products, utilizing real-time PCR methods for accurate detection [10]. - Various detection methods for "lean meat powder" have been established, including rapid screening technologies and confirmatory analysis techniques, ensuring compliance with national standards [12][13].