detection limit

简明释义

探测限

英英释义

例句

1.To ensure safety, the detection limit (检测限) for pesticide residues in food must be strictly adhered to.

为了确保安全，食品中农药残留的detection limit（检测限）必须严格遵守。

2.In clinical trials, understanding the detection limit (检测限) of a new drug is crucial for assessing its efficacy.

在临床试验中，了解新药的detection limit（检测限）对于评估其有效性至关重要。

3.The laboratory has determined the detection limit (检测限) for lead in water samples to be 5 ppb.

实验室已确定水样中铅的detection limit（检测限）为5 ppb。

4.The detection limit (检测限) for contaminants in soil was set at 10 mg/kg by the environmental agency.

环境机构将土壤中污染物的detection limit（检测限）设置为10 mg/kg。

5.A lower detection limit (检测限) can improve the accuracy of analytical results.

更低的detection limit（检测限）可以提高分析结果的准确性。

作文

The concept of detection limit is crucial in various scientific fields, particularly in environmental science, chemistry, and medical diagnostics. The detection limit refers to the lowest concentration of a substance that can be reliably detected by a particular analytical method, but not necessarily quantified as an exact value. Understanding the detection limit is essential for researchers and practitioners because it determines the sensitivity and reliability of their measurements. In many cases, a lower detection limit means that even trace amounts of a substance can be identified, which is particularly important in fields like toxicology or drug testing.For example, consider a laboratory that tests water samples for pollutants. If the detection limit for a specific contaminant is high, say 10 parts per million (ppm), then any concentration below this threshold will go undetected. This could lead to severe environmental consequences, as harmful substances may remain in the water supply without being identified. Therefore, laboratories strive to develop methods that can achieve lower detection limits, enabling them to identify harmful substances at much lower concentrations.In medical diagnostics, the detection limit is equally significant. For instance, in blood tests for certain diseases, the ability to detect low levels of biomarkers can be critical for early diagnosis and treatment. If the detection limit of a test is too high, it may miss the early signs of a disease, allowing it to progress unchecked. Thus, improving the detection limit of diagnostic tests can lead to better patient outcomes and more effective healthcare.Moreover, the detection limit is not a fixed value; it can vary depending on several factors, including the method used, the equipment's calibration, and the sample matrix. For instance, complex biological samples may interfere with the detection process, leading to a higher detection limit. Researchers must carefully assess these variables when designing experiments and interpreting results to ensure that they account for the potential limitations of their methods.In conclusion, the detection limit is a fundamental concept that impacts various scientific disciplines. Its importance cannot be overstated, as it influences the accuracy and reliability of measurement techniques. By striving for lower detection limits, scientists can enhance their ability to detect and quantify substances, ultimately leading to safer environments and improved health outcomes. As technology advances, the quest for lower detection limits will continue to drive innovation in analytical methods, making it an exciting area for future research and development.

“检测限”这一概念在多个科学领域中至关重要，特别是在环境科学、化学和医学诊断中。“检测限”是指通过特定分析方法可以可靠检测到的物质最低浓度，但不一定能以确切值量化。理解“检测限”对于研究人员和从业者至关重要，因为它决定了他们测量的灵敏度和可靠性。在许多情况下，更低的“检测限”意味着即使是微量的物质也能被识别，这在毒理学或药物检测等领域尤为重要。例如，考虑一个测试水样中污染物的实验室。如果某种污染物的“检测限”很高，比如10 ppm，那么低于这个阈值的任何浓度都将无法被检测到。这可能导致严重的环境后果，因为有害物质可能在水供应中未被识别。因此，实验室努力开发能够实现更低“检测限”的方法，使他们能够在更低浓度下识别有害物质。在医学诊断中，“检测限”同样重要。例如，在某些疾病的血液检测中，检测低水平生物标志物的能力对早期诊断和治疗至关重要。如果一种测试的“检测限”过高，它可能会错过疾病的早期迹象，从而让疾病在不受控制的情况下进展。因此，提高诊断测试的“检测限”可以导致更好的患者结果和更有效的医疗保健。此外，“检测限”并不是一个固定值；它可以根据多种因素而变化，包括所使用的方法、设备的校准以及样本基质。例如，复杂的生物样本可能会干扰检测过程，导致“检测限”提高。研究人员在设计实验和解释结果时必须仔细评估这些变量，以确保他们考虑到方法的潜在局限性。总之，“检测限”是影响多个科学学科的基本概念。它的重要性不容小觑，因为它影响测量技术的准确性和可靠性。通过追求更低的“检测限”，科学家们可以增强其检测和量化物质的能力，最终导致更安全的环境和改善的健康结果。随着技术的进步，对更低“检测限”的追求将继续推动分析方法的创新，使其成为未来研究和发展的一个令人兴奋的领域。