mass spectrometer

简明释义

质谱仪

英英释义

例句

1.The pharmaceutical company employed a mass spectrometer to ensure the purity of their products.

制药公司使用质谱仪确保其产品的纯度。

2.A mass spectrometer can help detect trace amounts of pollutants in environmental samples.

质谱仪可以帮助检测环境样品中微量污染物。

3.The scientist used a mass spectrometer to analyze the chemical composition of the new compound.

科学家使用质谱仪分析新化合物的化学成分。

4.In forensic labs, a mass spectrometer is essential for identifying unknown substances.

在法医实验室中，质谱仪对于识别未知物质至关重要。

5.Researchers are using a mass spectrometer to study the isotopic composition of ancient artifacts.

研究人员正在使用质谱仪研究古代文物的同位素组成。

作文

The world of science is filled with fascinating tools and techniques that help researchers uncover the mysteries of matter. One such tool is the mass spectrometer, a sophisticated instrument used to analyze the composition of substances at the molecular level. The mass spectrometer (质谱仪) operates on the principle of mass-to-charge ratio, allowing scientists to identify and quantify various compounds in a sample. This technology has revolutionized fields such as chemistry, biology, and environmental science by providing precise measurements that were previously unattainable.At its core, a mass spectrometer consists of three main components: an ion source, a mass analyzer, and a detector. The ion source generates ions from the sample, which are then accelerated into the mass analyzer. Here, the ions are separated based on their mass-to-charge ratios. Finally, the detector measures the abundance of each ion, producing a spectrum that reveals the sample’s composition.One of the most significant applications of the mass spectrometer (质谱仪) is in the field of proteomics, where it is used to study proteins and their functions. By analyzing the mass of peptide fragments generated from protein digestion, researchers can determine the identity and quantity of proteins in complex biological samples. This information is crucial for understanding cellular processes and discovering new biomarkers for diseases.In addition to proteomics, the mass spectrometer plays a vital role in drug development. Pharmaceutical companies utilize this technology to analyze the purity and concentration of active ingredients in their products. By ensuring that drugs meet stringent quality standards, the mass spectrometer helps safeguard public health and improve therapeutic outcomes.Environmental scientists also benefit from the capabilities of the mass spectrometer (质谱仪). It is employed to detect trace levels of pollutants in air, water, and soil samples. For instance, by measuring the isotopic composition of carbon dioxide in the atmosphere, researchers can track sources of greenhouse gas emissions and assess their impact on climate change. Such data is invaluable for formulating effective environmental policies and strategies.Furthermore, the mass spectrometer is increasingly being used in forensic science. Forensic analysts use this tool to identify substances found at crime scenes, such as drugs or explosives. The ability to accurately determine the chemical makeup of a sample can provide critical evidence in criminal investigations, helping to solve cases and bring justice.While the mass spectrometer (质谱仪) is a powerful analytical tool, it is not without its challenges. The complexity of the instrument requires skilled operators who can interpret the data accurately. Additionally, the costs associated with purchasing and maintaining a mass spectrometer can be prohibitive for some laboratories, limiting access to this valuable technology.In conclusion, the mass spectrometer is an essential instrument that has transformed scientific research across multiple disciplines. Its ability to analyze the composition of substances at a molecular level has led to significant advancements in our understanding of biology, chemistry, and environmental science. As technology continues to evolve, we can expect the mass spectrometer (质谱仪) to play an even more prominent role in addressing global challenges and advancing human knowledge.

科学的世界充满了迷人的工具和技术，这些工具和技术帮助研究人员揭示物质的奥秘。其中一个工具就是质谱仪，这是一种复杂的仪器，用于分析物质在分子水平上的成分。质谱仪(mass spectrometer)的工作原理是基于质量与电荷比，使科学家能够识别和量化样品中的各种化合物。这项技术已经彻底改变了化学、生物学和环境科学等领域，通过提供以前无法获得的精确测量。在其核心，质谱仪由三个主要组件组成：离子源、质谱分析器和探测器。离子源从样品中生成离子，然后将其加速进入质谱分析器。在这里，离子根据其质量与电荷比进行分离。最后，探测器测量每个离子的丰度，产生一个光谱，揭示样品的组成。质谱仪在蛋白质组学领域的应用是其最重要的应用之一，它用于研究蛋白质及其功能。通过分析从蛋白质消化中生成的肽片段的质量，研究人员可以确定复杂生物样品中蛋白质的身份和数量。这些信息对于理解细胞过程和发现新疾病生物标志物至关重要。除了蛋白质组学，质谱仪在药物开发中也发挥着重要作用。制药公司利用这项技术分析其产品中活性成分的纯度和浓度。通过确保药物符合严格的质量标准，质谱仪有助于保障公众健康并改善治疗效果。环境科学家也从质谱仪(mass spectrometer)的能力中受益。它被用来检测空气、水和土壤样本中微量污染物的存在。例如，通过测量大气中二氧化碳的同位素组成，研究人员可以追踪温室气体排放的来源，并评估其对气候变化的影响。这些数据对于制定有效的环境政策和战略至关重要。此外，质谱仪在法医学中也越来越多地被使用。法医分析师使用该工具识别在犯罪现场发现的物质，例如毒品或爆炸物。准确确定样本的化学组成的能力可以为刑事调查提供关键证据，帮助解决案件并伸张正义。虽然质谱仪(质谱仪)是一种强大的分析工具，但并非没有挑战。仪器的复杂性需要熟练的操作员来准确解释数据。此外，购买和维护质谱仪所需的成本可能会使一些实验室承受不起，从而限制了对这一宝贵技术的访问。总之，质谱仪是一种必不可少的仪器，已经在多个学科的科学研究中发生了变革。它在分子水平上分析物质组成的能力，导致了我们对生物学、化学和环境科学理解的重大进展。随着技术的不断发展，我们可以期待质谱仪(质谱仪)在应对全球挑战和推动人类知识进步方面发挥更突出的作用。