科学仪器应用
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264份食品农林牧渔标准,2026年实施
仪器信息网· 2026-01-23 09:02
Core Viewpoint - In 2026, the food, agriculture, forestry, animal husbandry, and fishery sectors will implement 264 new standards, which will drive industry upgrades and technological applications [1]. Group 1: Food Testing Standards - Advanced chromatographic and mass spectrometric techniques will be central to the new standards for food physicochemical and nutritional component testing. For instance, the determination of chiral amino acids will utilize pre-column derivatization high-performance liquid chromatography-tandem mass spectrometry [2]. - The detection of sulfonamides, nitroimidazoles, and β-agonists in feed will fully transition to liquid chromatography-tandem mass spectrometry technology [2]. - Ion chromatography will be explicitly used for the determination of polysaccharides in tremella, while near-infrared spectroscopy will be applied for rapid analysis of moisture and oil content in rapeseed due to its efficient and non-destructive characteristics [2]. Group 2: Biotechnology and Advanced Fields - The application of scientific instruments in biotechnology has penetrated molecular and cellular levels. Standards for next-generation sequencing (NGS) technology in nucleic acid preparation and statistical analysis procedures for cell counting will provide a quantitative basis for biomanufacturing and cell therapy products [3]. - The selection and confirmation of genome editing terminology and rapid detection methods for microorganisms will further standardize the operational methods and processes of precision biological experimental instruments [3]. Group 3: List of New Standards - A comprehensive list of new standards to be implemented in 2026 includes: - GB/T 46804-2025: Determination of phosphatidylserine in food - GB/T 45733-2025: Determination method for polysaccharides in tremella using ion chromatography - GB/T 22106-2025: Quality general rules for non-fermented soybean products - GB/T 45809-2025: Traceability technical specifications for condiments - GB/T 45685-2025: Technical guidelines for quality control and management of condiment production enterprises [4][5][6].
《千里江山图》 绢密度显微图:科学仪器在书画鉴定中的应用
仪器信息网· 2025-11-25 09:07
Core Viewpoint - The application of scientific instruments in the field of art authentication marks a significant shift from traditional experience-based methods to a more scientific and systematic approach, integrating advanced technologies such as AI, spectroscopy, and imaging techniques [3][36]. Group 1: Technological Advancements - Recent breakthroughs in fields like optical engineering, materials science, and AI have created favorable conditions for the application of scientific instruments in art authentication [2]. - The range of scientific instruments used in art authentication has expanded from simple magnifying glasses and microscopes to advanced spectral analysis devices and digital scanning systems [3]. Group 2: Methodologies in Art Authentication - The scientific principles and core logic behind using scientific instruments for verifying the authenticity of artworks are based on their physical and chemical properties, analyzed through three technical dimensions: microscopic observation, spectral imaging, and trace evidence [3]. - Various scientific instruments are employed to examine surface traces, material composition, and hidden features of artworks, providing objective evidence for authentication [18][36]. Group 3: Specific Instrument Applications - High-magnification stereo microscopes are used to observe microscopic details of artworks, helping to identify whether they are forgeries or aged pieces [6]. - Infrared imaging technology has recently uncovered over 40 characters in the "Zidan Ku Bo Shu" at the Hunan Provincial Museum, demonstrating the capability of modern instruments to reveal hidden information [5][27]. Group 4: Case Studies and Findings - Research conducted on five Song Dynasty silk paintings revealed that the quality and density of the silk used can indicate the authenticity and historical significance of the artworks [8][15]. - The use of scientific instruments has provided critical evidence in legal cases involving art fraud, such as identifying prints and forgeries through established national standards [9][36]. Group 5: Future Directions - The integration of various technological methods, such as Raman spectroscopy and infrared imaging, enhances the reliability of art authentication results, indicating a trend towards a more systematic and scientific approach in the field [46].
液相色谱仪等714份标准将于7月1日起实施
仪器信息网· 2025-06-30 08:35
Core Viewpoint - The implementation of 714 new standards in July 2025 highlights the importance of analytical techniques such as chromatography, mass spectrometry, and environmental monitoring in advancing various industries including agriculture, environmental protection, healthcare, and manufacturing [2][4][5]. Group 1: Instrumentation and Standards - The update of the "GB/T 9008-2024 Liquid Chromatography Terminology" reflects the need for standardized terminology in liquid chromatography, enhancing clarity and consistency in the field [3][7]. - New standards like "GB/T 45139-2024" utilize high-performance liquid chromatography (HPLC) to accurately measure harmful components in food products, ensuring food safety [4][10]. - The introduction of "HJ 1399-2024" employs triple quadrupole mass spectrometry to detect antibiotic residues in water, demonstrating advancements in environmental monitoring technologies [5][10]. Group 2: Industrial Applications - Instrumentation technologies are driving innovation in industries such as steel and automotive, with standards like "SN/T 5691-2024" ensuring the safety of automotive materials by analyzing heavy metal content [8][10]. - The application of chromatography and mass spectrometry in monitoring air quality and pollution levels is crucial for environmental governance, as seen in standards like "HJ 1392-2024" [5][10]. Group 3: Food Safety and Environmental Monitoring - The new standards are pivotal in establishing a robust ecological monitoring network, with high-sensitivity detection methods being essential for effective environmental management [5][10]. - The focus on food safety through rigorous testing standards ensures that harmful substances are monitored and controlled, safeguarding public health [4][10].