weighing burette

简明释义

计量滴定管

英英释义

例句

1.Using a weighing burette helps minimize errors in quantitative chemical analysis.

使用称量滴定管有助于减少定量化学分析中的误差。

2.The laboratory technician calibrated the weighing burette before starting the analysis.

实验室技术员在开始分析之前对称量滴定管进行了校准。

3.In titration experiments, a weighing burette ensures precise delivery of reagents.

在滴定实验中，称量滴定管确保试剂的精确投放。

4.The weighing burette was filled with distilled water for the calibration process.

称量滴定管被装满蒸馏水用于校准过程。

5.The chemist used a weighing burette to accurately measure the volume of the solution required for the experiment.

化学家使用称量滴定管准确测量实验所需的溶液体积。

作文

In the field of chemistry, precision is paramount, especially when it comes to measuring liquids and solutions. One of the most essential tools for achieving this level of accuracy is the weighing burette. A weighing burette is a specialized piece of laboratory equipment that allows chemists to dispense precise volumes of liquid while simultaneously measuring their mass. This dual functionality makes it an invaluable asset in various experimental setups, particularly in titrations and concentration determinations.The design of a weighing burette typically includes a graduated glass tube with a stopcock at the bottom, similar to a standard burette. However, what sets it apart is the built-in scale or balance that enables users to weigh the liquid as it is dispensed. This feature is particularly beneficial for experiments that require high accuracy, as it eliminates the need for separate weighing of the liquid before and after dispensing.Using a weighing burette can significantly enhance the reliability of experimental results. For instance, during a titration, the ability to measure the mass of the titrant being added allows for better calculation of molarity and concentrations. This is crucial in reactions where even slight variations in volume can lead to significant changes in outcome. By using a weighing burette, chemists can ensure that they are working with exact quantities, thereby minimizing errors and improving the reproducibility of their results.Moreover, the weighing burette is not only limited to titrations; it is also widely used in various applications such as preparing standard solutions, conducting kinetics studies, and performing gravimetric analyses. Its versatility makes it a staple in educational laboratories as well as in research settings.One of the key advantages of the weighing burette is its ability to provide real-time feedback on the amount of liquid dispensed. This is particularly useful in dynamic experiments where conditions may change rapidly, requiring precise adjustments. For example, in a reaction that is sensitive to temperature or pH changes, having immediate access to the mass of the reagent being added can help researchers make informed decisions quickly.In addition to its practical benefits, the weighing burette also contributes to the overall safety of laboratory operations. By allowing chemists to measure and dispense chemicals accurately, the risk of over- or under-dosing hazardous substances is reduced. This is especially important in experiments involving toxic or corrosive materials, where precise handling is crucial to prevent accidents.In conclusion, the weighing burette is an essential tool in modern chemistry that enhances precision, accuracy, and safety in liquid measurement. Its ability to weigh and dispense liquids simultaneously makes it a preferred choice for many chemists, whether in academic or industrial settings. As the field of chemistry continues to evolve, the importance of such innovative tools will only grow, ensuring that scientists can conduct their work with the highest standards of accuracy and reliability.

在化学领域，精确性至关重要，尤其是在测量液体和溶液时。实现这种准确性的重要工具之一是称量滴定管。称量滴定管是一种专用实验室设备，可以让化学家在同时测量液体的质量时，精确地分配液体的体积。这种双重功能使其成为各种实验设置中不可或缺的资产，特别是在滴定和浓度测定中。称量滴定管的设计通常包括一个带有底部阀门的刻度玻璃管，类似于标准的滴定管。然而，区别在于它内置的刻度或天平，使用户能够在分配液体时称量其质量。这一特点对于需要高精度的实验特别有益，因为它消除了在分配前后单独称量液体的需要。使用称量滴定管可以显著提高实验结果的可靠性。例如，在滴定过程中，能够测量所添加的滴定剂的质量，有助于更好地计算摩尔浓度和浓度。这在那些微小的体积变化可能导致显著结果变化的反应中至关重要。通过使用称量滴定管，化学家可以确保他们使用的是确切的数量，从而最小化错误并提高结果的可重复性。此外，称量滴定管不仅限于滴定，它还广泛应用于各种应用，如制备标准溶液、进行动力学研究和进行重量分析。它的多功能性使其成为教育实验室和研究环境中的基本设备。称量滴定管的一个主要优点是能够实时反馈分配液体的量。这在动态实验中尤为有用，因为实验条件可能快速变化，需要精确调整。例如，在对温度或pH变化敏感的反应中，能够立即获取所添加试剂的质量，可以帮助研究人员迅速做出明智的决策。除了实用的好处外，称量滴定管还提高了实验室操作的整体安全性。通过允许化学家准确测量和分配化学品，减少了过量或不足投放危险物质的风险。这在涉及毒性或腐蚀性材料的实验中尤其重要，精确处理对于防止事故至关重要。总之，称量滴定管是现代化学中一种重要工具，增强了液体测量的精确性、准确性和安全性。它能够同时称量和分配液体，使其成为许多化学家的首选，无论是在学术还是工业环境中。随着化学领域的不断发展，这类创新工具的重要性只会增加，确保科学家能够以最高的准确性和可靠性进行工作。