Core Insights - The article emphasizes the importance of high-quality after-sales service in the scientific instrument industry, highlighting it as a symbol of brand strength [2] - The "Customer Care Season" is a large-scale public after-sales service initiative organized by the Instrument Information Network, now in its fifth edition, aimed at enhancing user experience and addressing equipment operation challenges [2] Group 1 - The initiative includes free on-site inspections, remote guidance, and after-sales live broadcasts to provide in-depth services to users in the scientific and industrial sectors across the country [2] - The event showcases strong industry influence, with participation from well-known brands such as Thermo Fisher, Shimadzu, Danaher Group, Jena, and HORIBA, creating a comprehensive service network [2] - The focus is on "proactive after-sales and craftsmanship service," reflecting the industry's high regard for customer value and continuous pursuit of service quality [2]

Core Viewpoint - The article emphasizes the importance of recognizing and promoting high-quality domestic instruments in the industry, highlighting the "国产好仪器" initiative as a platform for showcasing superior products and engaging with manufacturers [2][4]. Group 1 - The "国产好仪器" initiative is focused on identifying and promoting high-quality, stable-performing domestic instruments [2]. - The initiative collaborates with company leaders to endorse their products, enhancing visibility and credibility in the market [4]. - Users' feedback is crucial in determining the quality of the instruments, reinforcing the idea that user satisfaction is a key indicator of product excellence [4].

照例，先送书再上干货。今天赠送的是 仪器信息网牵头编写出版的 《近红外光谱实战宝典》 1本： 点击下方免费"参与 抽奖"。 能力验证数据统计技术之简单的稳健统计法 作者： cosmosh73 能力验证（ Proficiency Tes ting, PT ）是实验室质量管理体系中至关重要的一环，它通过实验室间比对来评估实 验室的检测或校准能力。为确保评估结果的科学、公平和可靠，选择恰当的统计方法处理 PT 结果数据是关键。能力 验 证 数 据 往 往 是 一 组 被 异 常 值 污 染 的 数 据 ， 传 统 方 法 常 使 用 平 均 值 和 标 准 偏 差 来 表 征 指 定 值 和 能 力 评 定 标 准 差 （ Standard Dev iation for Proficiency As ses sment, σ pt ），但此法对极端值（离群值）异常敏感，易受"非共 识"实验室结果的影响。因此，能力验证相关的标准常建议使用稳健统计方法处理数据，该方法对于不对称分布及异常 值有较好的抵抗性。 稳健统计方法根据计算复杂度和稳健性能可大体分为三类。第一类方法相对简单，是以中位值（ Median ） 、标准化 ...

Core Points - The Nobel Prize in Physiology or Medicine for 2025 will be awarded to scientists Mary E. Brunkow, Fred Ramsdell, and Shimon Sakaguchi for their contributions to peripheral immune tolerance research [2] Group 1 - The Nobel Prize has been awarded 627 times over its century-long history, with recipients typically receiving medals, certificates, and substantial monetary rewards [6]

Core Viewpoint - The study investigates the impact of endogenous proteins on the physicochemical properties and brewing characteristics of starch in distiller's grains, revealing that the removal of these proteins enhances starch utilization and reduces resource waste [2][46]. Group 1: Materials and Methods - Distiller's grains were sourced from Yibin Nanxi Distillery, Sichuan, China, and various reagents were used for protein extraction and analysis [3][5]. - The study involved multiple extraction methods to isolate different soluble proteins, including water-soluble, salt-soluble, alcohol-soluble, and alkaline-soluble proteins [5][7]. Group 2: Results and Discussion - The relative content of different soluble proteins was analyzed, with alkaline proteins being the most abundant at 37.47%, followed by alcohol-soluble proteins at 15.97% [24][26]. - The removal of endogenous proteins significantly improved the swelling degree, freeze-thaw stability, and in vitro digestibility of starch, indicating enhanced brewing performance [28][32]. - Scanning Electron Microscopy (SEM) showed that the removal of proteins increased the porosity of starch granules, facilitating enzyme access and improving digestibility [35]. - Fourier Transform Infrared Spectroscopy (FT-IR) and X-ray Diffraction (XRD) analyses indicated that the removal of proteins altered the crystalline structure of starch, enhancing its digestibility [38][40]. Group 3: Brewing Characteristics - The study found that the removal of alcohol-soluble and alkaline proteins significantly improved the liquefaction and saccharification performance of starch, leading to higher fermentation efficiency [41][44]. - The total weight loss during fermentation was highest in samples with removed proteins, indicating better utilization of starch by yeast [44]. Group 4: Conclusion - The findings suggest that optimizing the removal of endogenous proteins from distiller's grains can enhance starch utilization, reduce waste, and contribute to sustainable practices in the liquor industry [46].

Core Points - The article emphasizes the importance of recognizing and promoting high-quality domestic instruments in the industry, particularly through the "国产好仪器" initiative [1][4] - It highlights the publication of a practical guide titled "Liquid Chromatography Practical Handbook," which aims to support professionals in the field [2] Group 1 - The "国产好仪器" initiative is focused on identifying and endorsing superior domestic instruments, collaborating with industry leaders to enhance product visibility [1][4] - The article encourages participation in the initiative and provides a platform for users to learn about and nominate quality instruments [1] - A free giveaway of the "Liquid Chromatography Practical Handbook" is being promoted to engage the audience and provide valuable resources [2]

Core Viewpoint - The article promotes a new course titled "Wine Testing and Origin Traceability Technology," aimed at enhancing the standardized testing skills of technical personnel in the wine industry [2][4]. Course Overview - The course provides an overview of wine quality safety indicators and deeply analyzes national standard testing methods for various physicochemical indicators such as ethanol, sugar, sulfur dioxide, extract, acidity, flavor, and color [2][16]. - It addresses common issues encountered during testing and explains wine quality problems, supplemented with case studies on origin traceability technology [2][16]. Instructor Credentials - The course is taught by engineers from the Customs Scientific Research Center, who possess substantial practical experience in wine testing and traceability [3][16]. - Notable instructors include: - Zhu Xiaoyi, with 10 years in food testing and a second prize in a national science competition [10]. - Wang Peiyue, involved in chromatography analysis and author of several research papers [12]. - Liu Ying, with experience in alcohol beverage analysis and participation in developing key testing technologies [13]. - Han Shen, a senior engineer with extensive research in food safety and authenticity detection [15]. Target Audience - The course is suitable for personnel responsible for food quality, safety standards, and supervision in wine production and distribution, as well as students from food, chemistry, and biology disciplines [18]. Course Details - The original price of the course is 599 yuan, currently offered at a limited-time discount of 99 yuan for the first 50 participants [4][19]. - The course is a virtual product with no exams or certificates, but participants can apply for a training certificate upon completion [18]. - The course is valid for 360 days post-purchase, allowing unlimited access during this period [19].

Core Viewpoint - The article emphasizes the importance of high-quality after-sales service in the scientific instrument industry, highlighting a customer care initiative aimed at enhancing user experience and addressing equipment maintenance challenges [2]. Group 1: Customer Care Initiative - The "Customer Care Season" is a large-scale public after-sales service event organized by the Instrument Information Network in collaboration with multiple brand partners, now in its fifth edition [2]. - The initiative provides free on-site inspections, remote guidance, and after-sales live broadcasts to users in the scientific and industrial sectors across the country [2]. - The event showcases strong industry influence, with participation from well-known brands such as Thermo Fisher, Shimadzu, Danaher Group, Jena, and HORIBA, covering a wide service network [2]. Group 2: Industry Impact - The initiative aims to deepen the emotional connection between users and brands through proactive customer care [2]. - It reflects the industry's high regard for customer value and the ongoing pursuit of service quality [2].

Core Viewpoint - The article highlights high-paying job opportunities in the after-sales sector of the instrumentation industry during the National Day holiday, encouraging job seekers to consider these positions. Group 1: Job Opportunities - Agilent is hiring Customer Service Engineers nationwide, requiring a Master's degree in relevant fields and strong communication skills [2] - Anton Paar is looking for a Maintenance Engineer in Shanghai, requiring a Bachelor's degree and at least 2 years of experience in laboratory equipment maintenance [3] - Beiyu Analysis is offering positions for Laboratory Technicians in Beijing with a salary range of 5,000 to 8,000 RMB per month [4] - Dalian Tianyi is seeking after-sales maintenance personnel for laboratory analysis instruments in Suzhou, offering a salary of 8,000 to 10,000 RMB per month [6] - Jingtai Technology is hiring for an Operations and Maintenance position in Shanghai, with a salary range of 8,000 to 13,000 RMB per month [7] - Innovation Dynamics is looking for a Compliance Validation Manager in Beijing, offering a salary of 10,000 to 15,000 RMB per month [8] - Puyutech is hiring Operations Service Engineers in Yibin, with a salary range of 6,000 to 8,000 RMB per month [10] - Dan Dong Bate is seeking After-sales Service Engineers in Wuhan, offering a salary of 6,000 to 8,000 RMB per month [12] - Puxi is looking for a Customer Service Manager in Urumqi, with a salary range of 8,000 to 14,000 RMB per month [13] - A position in Zhengzhou offers a salary of 10,000 to 12,000 RMB per month [15] - A position requiring a Master's degree in Life Sciences is available, with a focus on biological and pharmaceutical backgrounds [16]

Core Viewpoint - The article discusses the challenges and solutions in the detection of organophosphate esters (OPEs) in environmental pollutants and food safety, particularly focusing on the contamination issues arising from the use of plastic tools in laboratory settings [3][4]. Group 1: Challenges in Detection - The use of plastic pipette tips in OPEs detection can introduce significant background contamination, leading to distorted experimental results [4]. - Specific difficulties include the preparation of standard solutions, which now requires larger glass volumetric flasks instead of the usual 1ml vials, increasing waste and operational complexity [5]. - Adding internal standards consistently across samples is challenging due to the inefficiency of using micro-syringes, which can lead to significant discrepancies in the actual amounts added [5]. Group 2: Exploration and Initial Attempts - Initial attempts to replace plastic tools with glass micro-syringes aimed to eliminate plastic contamination but revealed new issues such as uneven internal standards due to dead volume and variations in injection speed [6][7]. - The complexity of using volumetric flasks with syringes resulted in human errors, leading to suboptimal standard curve linearity [8]. Group 3: Innovative Solution - A novel approach was proposed, combining a glass pipette tip with a plastic pipette body to maintain accurate volume control while avoiding plastic contamination [10][11]. - The new system was rigorously tested for accuracy, showing that the actual volumes measured were within acceptable error margins compared to the set volumes [12][13]. Group 4: Conclusion and Recommendations - The mixed method of using a plastic pipette with a glass tip proved effective in avoiding plastic contamination while retaining precision and efficiency in OPEs detection [15]. - It is crucial to ensure a tight seal between the glass pipette and plastic tip and to conduct thorough validation tests to confirm volume accuracy [16].