Calibration of Volumetric Glassware

본 내용은 " Calibration of Volumetric Glassware " 의 원문 자료에서 일부 인용된 것입니다. 2023.02.22

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• 1. Volumetric Glassware Calibration

  실험을 통해 buret의 표시된 부피와 실제 부피 간의 오차를 확인하고 calibration curve를 얻었습니다. 20mL에서는 실제 부피가 buret reading보다 0.01mL 작게 나타났고, 나머지 측정값(5mL, 10mL, 15mL, 25mL)에서는 실제 부피가 0.01~0.02mL 더 크게 나타났습니다. 이를 통해 buret의 오차 범위가 제작사에서 제시한 ±0.03mL 이내임을 확인할 수 있었습니다.

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• 1. Volumetric Glassware Calibration

  Volumetric glassware calibration is an essential process in analytical chemistry and laboratory work. Accurate measurement of volumes is crucial for ensuring the reliability and reproducibility of experimental results. The calibration of volumetric glassware, such as pipettes, burettes, and volumetric flasks, involves determining the true volume of the instrument and comparing it to the stated or nominal volume. This process helps to identify and correct any systematic errors or variations in the glassware, which can arise from factors like manufacturing tolerances, temperature fluctuations, and wear and tear over time. The calibration process typically involves weighing the amount of water or other reference liquid dispensed by the glassware and comparing it to the expected volume. This can be done using a high-precision balance and applying appropriate temperature and meniscus corrections. Proper calibration ensures that the glassware provides accurate and consistent measurements, which is particularly important in applications where precise volumes are required, such as in titrations, dilutions, and sample preparation. Regular calibration of volumetric glassware is essential to maintain the integrity of analytical data and to comply with quality assurance and regulatory requirements in various industries, including pharmaceuticals, environmental analysis, and food and beverage production. By implementing a robust calibration program, laboratories can improve the reliability of their measurements, reduce the risk of errors, and enhance the overall quality of their analytical work.