polarographic

简明释义

英[/ˌpoʊlərəˈɡræfɪk/]美[/ˌpoʊlərəˈɡræfɪk/]

adj. 极谱法的

英英释义

单词用法

同义词

反义词

例句

1.Papain(PAP) yielded a polarographic catalytic hydrogen wave with the peak potential-1.

介质中，木瓜蛋白酶（PAP）产生一个极谱催化氢波，峰电位为-1。

2.The polarographic behaviors of triptophenolide at different buffer systems and oxidants were studied by linear sweep polarography.

用线性扫描伏安法研究了雷酚内酯在不同缓冲体系及氧化剂作用下的极谱行为。

3.By using different electrochemical methods, the properties of the polarographic wave and the mechanism of electrode reaction were studied.

采用多种电化学方法研究了极谱波的性质和电极反应机理。

4.A new method of polarographic double-point titration through displacement and complexation reactions was established.

本文提出了络合极谱双点滴定中置换滴定法的测定方法和定量公式。

5.Polarographic catalytic wave of organic compounds is mainly classed to two variations, the parallel catalytic wave and the catalytic hydrogen wave.

有机化合物极谱催化波主要有两种，即催化氢波和平行催化波。

6.The polarographic behavior and the mechanism of the electrode reaction were studied by single sweep oscillopolarography and cyclic voltammetry.

用单扫描极谱法与循环伏安法研究了该体系的极谱行为和反应机理。

7.In this paper, the polarographic properties of these waves have been discussed.

对这三种化合物与铜离子的络合物波的性质和机理进行了初步研究。

8.Using a polarographic method, researchers were able to detect trace amounts of lead in the soil.

研究人员使用极谱法能够检测到土壤中微量铅。

9.In clinical settings, polarographic sensors are used to monitor blood oxygen levels.

在临床环境中，使用极谱法传感器监测血氧水平。

10.The laboratory conducted a polarographic analysis to determine the concentration of heavy metals in the water sample.

实验室进行了极谱法分析，以确定水样中重金属的浓度。

11.The polarographic technique is essential for measuring the electrochemical properties of various compounds.

极谱法技术对于测量各种化合物的电化学性质至关重要。

12.The polarographic analysis revealed significant changes in the redox state of the solution.

极谱法分析显示溶液的氧化还原状态发生了显著变化。

作文

The field of analytical chemistry has seen numerous advancements over the years, one of which is the technique known as polarographic analysis. This method plays a crucial role in determining the concentration of various substances in a solution by measuring the current that flows through the solution as a function of an applied voltage. The invention of polarographic techniques dates back to the early 20th century, and since then, it has evolved into a powerful tool used in laboratories around the world.To understand the significance of polarographic analysis, we must first delve into its principles. At its core, polarographic analysis involves the use of a dropping mercury electrode or a solid electrode, where the potential is varied while measuring the resulting current. As the voltage is increased, different species in the solution are reduced or oxidized at specific potentials, leading to distinct peaks on a current-voltage graph. These peaks correspond to the concentration of the analytes present, allowing chemists to quantify them accurately.One of the primary advantages of polarographic methods is their sensitivity. This technique can detect substances at very low concentrations, making it invaluable in fields such as environmental monitoring, pharmaceuticals, and food safety. For instance, trace amounts of heavy metals in water can be analyzed using polarographic techniques, ensuring compliance with safety standards and protecting public health.Moreover, polarographic analysis is not limited to just inorganic compounds. It can also be applied to organic molecules, including neurotransmitters and pharmaceuticals, expanding its utility across various scientific disciplines. Researchers have employed polarographic methods to study reaction mechanisms and kinetics, providing insights into the behavior of different chemical species in solution.Despite its many benefits, polarographic analysis does come with challenges. The presence of interfering substances can complicate measurements, leading to inaccurate results. Therefore, it is essential for chemists to carefully prepare samples and consider potential interferences when conducting polarographic analyses. Additionally, the use of mercury in traditional polarographic methods raises environmental and health concerns, prompting the development of alternative electrodes that do not pose such risks.In conclusion, polarographic analysis is a vital technique in the field of analytical chemistry, offering sensitive and accurate measurements of various substances in solution. Its ability to detect low concentrations of analytes makes it an essential tool in environmental monitoring, pharmaceuticals, and food safety. While challenges exist, ongoing research and innovation continue to enhance the capabilities of polarographic methods, ensuring their relevance in modern scientific inquiry. As we advance further into the realm of analytical techniques, the role of polarographic analysis will undoubtedly remain significant, contributing to our understanding of complex chemical systems and improving safety standards across multiple industries.

分析化学领域多年来经历了许多进步，其中一种技术被称为极谱法分析。这种方法在通过测量在施加电压时流过溶液的电流来确定溶液中各种物质的浓度方面起着至关重要的作用。极谱法技术的发明可以追溯到20世纪初，从那时起，它已发展成为全球实验室中使用的强大工具。要理解极谱法分析的重要性，我们必须首先深入了解其原理。在其核心，极谱法分析涉及使用滴汞电极或固体电极，在测量所产生的电流的同时改变电位。随着电压的增加，溶液中的不同物质在特定电位下被还原或氧化，导致在电流-电压图上出现明显的峰值。这些峰值对应于存在的分析物的浓度，使化学家能够准确地量化它们。极谱法方法的主要优点之一是其灵敏度。这种技术可以检测非常低浓度的物质，使其在环境监测、制药和食品安全等领域中不可或缺。例如，可以使用极谱法技术分析水中微量重金属，确保符合安全标准并保护公众健康。此外，极谱法分析不仅限于无机化合物。它还可以应用于有机分子，包括神经递质和药物，扩展了其在各个科学学科中的实用性。研究人员已经采用极谱法方法研究反应机制和动力学，为不同化学物质在溶液中的行为提供了见解。尽管有许多好处，但极谱法分析确实面临挑战。干扰物的存在可能会使测量变得复杂，从而导致不准确的结果。因此，化学家在进行极谱法分析时，必须仔细准备样品并考虑潜在的干扰。此外，传统极谱法方法中汞的使用引发了环境和健康问题，促使开发不构成此类风险的替代电极。总之，极谱法分析是分析化学领域的一项重要技术，提供对溶液中各种物质的灵敏和准确的测量。其检测分析物低浓度的能力，使其成为环境监测、制药和食品安全领域的重要工具。虽然存在挑战，但持续的研究和创新不断增强极谱法方法的能力，确保其在现代科学研究中的相关性。随着我们进一步进入分析技术的领域，极谱法分析的角色无疑将继续保持重要性，为我们理解复杂的化学系统做出贡献，并提高多个行业的安全标准。