atomic absorption spectrometer

简明释义

1. 原子吸收分光光度计; 2. 原子吸收分光计; 3. 原子吸收光谱议;

英英释义

例句

1.The laboratory uses an atomic absorption spectrometer to analyze the concentration of metals in water samples.

实验室使用原子吸收光谱仪分析水样中的金属浓度。

2.We need to run a sample through the atomic absorption spectrometer to determine the lead content.

我们需要通过原子吸收光谱仪运行一个样本，以确定铅含量。

3.Before starting the experiment, make sure the atomic absorption spectrometer is calibrated properly.

在开始实验之前，确保原子吸收光谱仪已正确校准。

4.The accuracy of the results obtained from the atomic absorption spectrometer is crucial for our research.

从原子吸收光谱仪获得的结果的准确性对我们的研究至关重要。

5.The atomic absorption spectrometer can detect trace elements in soil, making it essential for environmental studies.

原子吸收光谱仪可以检测土壤中的微量元素，这使它在环境研究中至关重要。

作文

The field of analytical chemistry has made significant advancements in recent decades, particularly with the development of various instruments that enable scientists to analyze the composition of materials with great precision. One such instrument is the atomic absorption spectrometer, which plays a crucial role in determining the concentration of specific elements in a sample. The atomic absorption spectrometer (原子吸收光谱仪) is widely used in laboratories around the world for its ability to provide accurate and reliable results. At its core, the atomic absorption spectrometer operates on the principle of atomic absorption spectroscopy (AAS). This technique involves the measurement of the absorption of light by free atoms in the gaseous state. When a sample is introduced into the instrument, it is typically vaporized in a flame or graphite furnace, where it is atomized. The resulting free atoms then absorb light at characteristic wavelengths specific to each element. By measuring the amount of light absorbed, scientists can determine the concentration of the element within the sample. The applications of the atomic absorption spectrometer are vast and varied. It is commonly used in environmental monitoring to detect heavy metals in water and soil samples. For instance, regulatory agencies often employ this technology to ensure that drinking water meets safety standards by quantifying contaminants such as lead, cadmium, and mercury. Additionally, the atomic absorption spectrometer is utilized in the pharmaceutical industry to analyze the purity of drugs, ensuring that they meet required specifications before reaching consumers. Another significant application of the atomic absorption spectrometer is in the field of food safety. Food products are regularly tested for trace elements and contaminants that could pose health risks. For example, the presence of toxic metals in seafood can be detected using this technology, safeguarding public health. Furthermore, agricultural scientists use the atomic absorption spectrometer to analyze soil samples, helping farmers make informed decisions about fertilizer use and crop management. The design and functionality of the atomic absorption spectrometer have evolved over time, incorporating advancements in technology to improve sensitivity and efficiency. Modern spectrometers are equipped with sophisticated detectors and software that allow for rapid data analysis and enhanced accuracy. Some models even feature automated systems that streamline the sample introduction process, reducing the potential for human error. Despite its many advantages, the use of the atomic absorption spectrometer does come with certain limitations. One challenge is its inability to simultaneously measure multiple elements, as it typically analyzes one element at a time. This can be time-consuming when analyzing complex samples containing various elements. However, advancements in instrumentation, such as the development of inductively coupled plasma optical emission spectrometry (ICP-OES), are addressing these limitations. In conclusion, the atomic absorption spectrometer (原子吸收光谱仪) is an invaluable tool in analytical chemistry, providing essential insights into the elemental composition of various materials. Its applications span across multiple industries, including environmental science, pharmaceuticals, and food safety. As technology continues to advance, the capabilities of the atomic absorption spectrometer will likely expand, further enhancing its role in scientific research and quality control. Understanding how to effectively utilize this instrument is crucial for anyone involved in analytical chemistry, as it not only aids in research but also contributes to the overall safety and well-being of society.

分析化学领域在近几十年取得了显著进展，特别是在各种仪器的发展方面，这些仪器使科学家能够以极高的精度分析材料的成分。其中一种仪器是原子吸收光谱仪，它在确定样品中特定元素的浓度方面发挥着至关重要的作用。原子吸收光谱仪（atomic absorption spectrometer）在全球实验室中广泛使用，因为它能够提供准确可靠的结果。原子吸收光谱仪的核心原理是原子吸收光谱法（AAS）。该技术涉及测量自由原子在气态下对光的吸收。当样品被引入仪器时，通常会在火焰或石墨炉中气化，在那里样品被原子化。产生的自由原子然后在特定于每个元素的特征波长处吸收光。通过测量吸收的光量，科学家可以确定样品中元素的浓度。原子吸收光谱仪的应用广泛且多样。它通常用于环境监测，以检测水和土壤样本中的重金属。例如，监管机构经常利用这项技术来确保饮用水符合安全标准，通过量化铅、镉和汞等污染物。此外，原子吸收光谱仪还被广泛应用于制药行业，以分析药物的纯度，确保它们在到达消费者之前符合要求的规格。原子吸收光谱仪的另一个重要应用是在食品安全领域。食品产品定期测试以检测可能构成健康风险的微量元素和污染物。例如，可以使用此技术检测海鲜中的有毒金属，从而保障公众健康。此外，农业科学家使用原子吸收光谱仪分析土壤样本，帮助农民就施肥和作物管理做出明智的决策。原子吸收光谱仪的设计和功能随着时间的推移而不断发展，结合了技术进步，提高了灵敏度和效率。现代光谱仪配备了复杂的探测器和软件，允许快速数据分析和增强的准确性。一些型号甚至具有自动化系统，简化样品引入过程，减少人为错误的可能性。尽管有许多优点，使用原子吸收光谱仪确实存在某些限制。其中一个挑战是它无法同时测量多个元素，因为它通常一次分析一个元素。当分析含有多种元素的复杂样品时，这可能会耗时。然而，仪器的进步，例如感应耦合等离子体光发射光谱法（ICP-OES）的发展，正在解决这些限制。总之，原子吸收光谱仪（atomic absorption spectrometer）是分析化学中一项宝贵的工具，为各种材料的元素组成提供了重要见解。它的应用跨越多个行业，包括环境科学、制药和食品安全。随着技术的不断进步，原子吸收光谱仪的能力可能会进一步扩展，进一步增强其在科学研究和质量控制中的作用。有效理解如何使用这一仪器对于任何参与分析化学的人来说都是至关重要的，因为它不仅有助于研究，还促进了社会整体的安全与福祉。