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1-25 的 473 产品与服务

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1-25 的 89 技术资源

  • 产品手册

    MPS 320™ 微波消解系统

    分析化学关键步骤的质量控制—是分析结果的科学保证和安全保障。对于痕量元素分析,获得可靠、可重复的结果取决于样品制备的质量。MPS 320TM 是一种安全、易用的微波消解系统,适用于多种样品基质和应用,具有以下优势:实现精准控制,结果高重现性;提高吞吐量,高效快捷;配置灵活,轻松应对不同应用;具备优秀的易用性和安全性;高质量长寿命,低运行成本

  • 产品手册

    大麻分析解决方案手册

    无论您的实验室已经稳住根基还是刚刚起步,拥有一个能够提供符合当前法规交钥匙解决方案的单一来源合作伙伴,对于成功的业务至关重要。多年来,我们一直与政府和合同大麻实验室合作,开发行业领先的方法、技术和超高投资回报。我们帮助推动分析标准,并致力于确保您的实验室具有最大的正常运行时间。了解我们用于大麻分析的各种测试方法和应用,让我们与您一起建立一个高效的工作流程,这样您就可以专注于发展您的业务和品牌。

  • 应用文献

    黄曲霉毒素的超高效液相色谱分析

    黄曲霉毒素B1被认为是最具遗传毒性的真菌毒素,当被奶牛食用后,会转化为黄曲霉毒素M1,而黄曲霉毒素M1在某些动物身上被证明会导致肝癌。

  • 应用文献

    超高压液相色谱-串联质谱法测定猪肉中13种β-受体激动剂

    β-肾上腺素受体激动剂(β-激动剂)是一种用于治疗哮喘等疾病的合成药物,在生产食品的动物中也被用作生长促进剂。出于对人类健康的考虑,许多国家都禁止或管制在生产粮食的牲畜中使用β-激动剂。为了有助于监测和检测牲畜体内的β-激动剂,本研究建立了一种高灵敏度和高选择性的分析方法。采用LC/MS/MS方法详细分析了猪肉样品中的13种β-激动剂,并利用同位素标记的内标物来补偿复杂食品基质中存在的基质效应。

  • 应用文献

    各种食品中大麻素的监测

    本文介绍了用光电二极管阵列(PDA)检测器检测,通过HPLC分离和定量监测几种食品基质提取物中12种主要大麻素的样品制备和分析方法。该方法重现性好,并能提供远低于当前食用大麻素浓度水平的定量限。因此,本文所定义的方法/程序可预期完成确保食用食品中产品一致性和大麻素筛选的基本任务。

  • 应用文献

    采用ASE萃取- GPC纯化结合GC/MS法测定熏肉中24种多环芳烃

    多环芳烃是一类含有两个或两个以上苯环的复杂化合物,广泛存在于环境和食品中。多环芳烃是在有机物不完全燃烧的过程中形成的,如用于烹饪和食品制备的木材。由于研究表明多环芳烃化合物具有致畸性和致癌性,因此受到广泛关注。对人类来说,食物摄入是多环芳烃暴露的主要来源之一,可能是人为来源、食品加工或烹饪活动的污染所致。本文采用快速溶剂萃取(ASE)和凝胶渗透色谱(GPC)相结合,然后进行硅胶固相萃取(SPE)和GC/MS分析测定的方法,对烟熏肉中多环芳烃(PAHs)进行了检测。结果表明,该方法适用于烟熏肉中24种多环芳烃的同时测定,具有良好的效率、准确度和重现性。

  • 应用文献

    UHPLC使用PDA检测分析 防晒露和润唇膏中的有效 防晒成分与对羟基苯甲酸酯

    用于防止皮肤受到太阳辐射伤害的化妆品中通常含有较高浓度的相关成分,这可能会对人体健康带来风险。例如,氧苯酮可能会导致黑色素瘤,这种黑色素瘤与紫外线照射后产生攻击DNA的自由基有关。已证实用作抗菌防腐剂的对羟基苯甲酸酯具有雌激素活性,可能导致罹患乳腺癌的风险增加。尽管FDA等监管机构认为该成分无害,但制造商必须对其产品中这些成分及其他潜在有害化合物的浓度进行监测,确保各物质的浓度处于安全水平且符合相关规定的要求。本应用文献建立了一种分析方法,即利用配有PDA检测器的UHPLC对多种化妆品中的对羟基苯甲酸酯和其他活性成分进行分析。

  • 应用文献

    超高效液相色谱-串联质谱法分析海产品中硝基呋喃代谢物

    硝基呋喃是一类广谱抗生素,在水产养殖业中被广泛用于杀灭或减缓细菌的生长。由于硝基呋喃及其代谢物对人体健康有害的副作用,欧盟、美国和中国的一些国家和组织限制了硝基呋喃及其代谢物的使用,并为食品、动物和水产品规定了1.0µg/kg的最低要求执行限量(MRPL)。

    由于LC/MS/MS方法具有较高的灵敏度、选择性和特异性,在许多研究中被用于硝基呋喃代谢物的检测。然而,在LC/MS/MS系统中,硝基呋喃代谢物在电喷雾离子源中电离效率较低。因此,在提取和LC/MS/MS分析之前对硝基呋喃代谢物进行衍生化,这对于满足食品样品中1.0µg/kg的低监管限值至关重要。本工作主要目的是使用QS ...

  • 产品手册

    HPLC and UHPLC Column Portfolio Interactive Brochure

    Every decision you make in the lab affects your scientific outcomes – and that holds true for column choices. Sample solubility, chemical differences among analytes, and stationary phase chemistry are key factors in deciding which column is right for your application. The column vendor you choose ...

  • 产品手册

    Chromatography Solutions for Soft Drink Analysis

    Monitoring the consistency and quality in soft drinks is essential to ensure a positive brand image and a loyal customer base. Our full portfolio of chromatography solutions, including LC, GC and GC/MS, enables you to meet – and even exceed – your quality control goals with rapid, intuitive, and ...

  • 产品说明

    MacroSep BIO-Gold HPR Column Product Brief

    MacroSep BIO-Gold packings are based on ultra-high purity spherical silica, state-of-the-art high density bonding and full endcapping produces the separation or purification of high molecular weight bio compounds such as proteins and peptides. Significant improvements in acidic ...

  • 产品说明

    ChromegaChiral CCO F2 Columns Product Brief

    ChromegaChiral CCO F2 is a fluorinated phase for chiral separations and was developed in collaboration with Bill Farrell of Pfizer, La Jolla, CA. It incorporates a fluoro group in its structure. The addition of a fluorine atom into a phenyl carbamate cellulose structure can be useful in promoting ...

  • 产品说明

    Epic PFP-LB HPLC Columns

    Epic PFP-LB is a truly unique stationary phase with properties significantly different than ODS phases. This unique characteristic results from bonded Pentafluorophenyl groups imparting a π-π electron interaction, producing an enhanced retention for many compounds.

  • 产品说明

    SFC Isolation of THC-Delta 9 and THCV in Cannabis Using GreenSep NP-II

    Supercritical Fluid Chromatography (SFC) is a powerful chromatographic technique for the separation of complex mixtures, which has been useful in the areas of preparative chromatography and rapid analysis chromatography.

    GreenSep NP-II is the product of our column research efforts to develo ...

  • 指南

    The Basics of HPLC/UHPLC and LC Columns Training Guide

    Establishing the basics is important when it comes to Chromatography. Whether you're looking to brush up your knowledge on the difference between HPLC and UHPLC, or looking for tips on choosing the right Stationary Phase/Bonding Chemistry for your application, look no further than this complete e ...

  • 指南

    Selecting HPLC Columns: Going Under the Hood

    With a wide variety of stationary phases and column dimensions commercially available in the market, it can be difficult to select the right HPLC column for your application. PerkinElmer is here to help.

    This comprehensive guide provides direction on column selection and helps assist you t ...

  • 白皮书

    Advantages and Applications of Superficially Porous Particle Columns in Liquid Chromatography

    The current trend in liquid chromatography is towards the achievement of higher kinetic efficiency and shorter analysis time. Different types of column packings are now available for attaining very fast and high resolution separations without changing instruments, worrying about high backpressure or ...

  • 应用文献

    Rapid, High Throughput Analysis of Compounds in Urine

    Urine is the matrix of choice as it can be collected easily and in large volumes. The variations within the urine matrix can adversely impact chromatographic separation and LC-MS/MS signal. The present study demonstrates that a simple “dilute and shoot” method coupled with the high sensitivity QSigh ...

  • 应用文献

    High Sensitivity Methotrexate Quantitation in Human Serum Utilizing

    This application note outlines a rapid LC-MS/MS research method utilizing the QSight® 220 triple quadrupole mass spectrometer. The developed method provides exceptional results for the quantitation of methotrexate in serum especially in terms of LLOQs and linearity.

  • 应用文献

    Determination of Nine Carbonates in Lithium Ion Battery Electrolyte by GC/MS

    The composition and content of carbonates, such as dimethyl carbonate and ethyl methyl carbonate, in electrolytic solution plays an important role in the development and quality control of lithium ion batteries. Monitoring the composition and ratio of carbonates has important implications for en ...

  • 应用文献

    Metanephrine and Normetanephrine Quantification by SPE-LC-MS/MS

    Measurement of metanephrines and normetanephrine in plasma is challenging due to the low physiological concentrations, their hydrophilic nature1, and time consuming traditional sample preparation. With use of the PerkinElmer QSight® 220 triple quadrupole mass spectrometer, LC-MS/MS analysis was perf ...

  • 应用文献

    HPLC: Determination of Urea Content in Urea- Based Fertilizers in Accordance with AOAC Official Method 2003.14

    Urea is a white, crystalline solid containing 46% nitrogen. Due to its high nitrogen content, urea is the most widely used source of nitrogen for nitrogen-based fertilizers worldwide. The accurate determination of urea in urea-based fertilizers is important for regulatory and product quality purp ...

  • 应用文献

    A Fast, Simple and Green Chemistry Method for the Analysis of Additives in Diet Soft Drinks by HPLC

    Soft drink products serve as a major revenue stream for food and beverage manufacturers, with a global market size of USD 237 billion in 2021. Due to the popularity and wide consumption of these products, product consistency, which drives customer satisfaction, is of the utmost importance. For qu ...

  • 应用文献

    Resurgence in Fluorinated Chiral Polysaccharide Phases for Supercritical Fluid Chromatography

    Chiral supercritical fluid chromatography (SFC) is the primary tool for the separation of enantiomers in support of drug discovery efforts. SFC uses a simple mobile phase system consisting of non-toxic CO2 and an organic modifier, typically an alcohol. The lower toxicity of solvents and reduced ...

  • 应用文献

    Characteristic Analysis of Honeysuckle Extract Granule

    This application outlines the HPLC analysis of honeysuckle granules following the Chinese National Medicine and Pharmacy agency's (NMPA) published TCM formulated granule guidelines. Successfully meet method requirements with the LC 300 instrument and a Chromegabond C18 WR column.

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