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相关概念视频

Special considerations while measuring oxygen saturation01:19

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Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
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Amperometry is a technique commonly used to measure the concentration of specific analytes in a solution by monitoring the electric current generated during an electrochemical reaction. It involves applying a constant potential between a working electrode and a reference electrode to measure the resulting current, which is proportional to the concentration of the analyte. The Clark oxygen electrode operates based on this principle of amperometry. It consists of a cathode and an anode enclosed...
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Updated: May 5, 2026

Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation
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毛细血管流动驱动的,一次性装置,用于在水样中检测溶解氧气.

Izabela Lewińska1, Prakash Aryal2, Eric Brack3

  • 1Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw 02-093, Poland.

Analytical chemistry
|November 5, 2025
PubMed
概括

一个新的,低成本的微流体装置提供了简单的,一次性色度测定溶解氧 (DO). 这种用户友好的传感器非常适合公民科学和广泛的水质监测.

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科学领域:

  • 环境科学 环境科学
  • 分析化学 分析化学
  • 微流体学 微流体学

背景情况:

  • 水体中溶解氧 (DO) 水平的下降是一个越来越令人担忧的问题.
  • 现有的DO监控技术往往很昂贵,需要专门的培训.

研究的目的:

  • 开发一种简单,用户友好和一次性微流体装置,用于颜色测量溶解氧 (DO) 测定.
  • 为水质监测提供一个可访问的工具.

主要方法:

  • 使用PET薄膜,粘合剂和玻璃微纤维与固定试剂构建了一个毛细管流动驱动的微流体装置.
  • 修改后的温克勒色度测试被用于DO量化.
  • 该设备允许通过浸入水中直接采集样本.

主要成果:

  • 开发的设备实现了DO的检测极限为1.7ppm.
  • 现场应用性评估证实了对环境干扰的强度.
  • 用各种淡水和水族馆样本进行验证,证明了高精度.

结论:

  • 拟议的微流体装置为DO监控提供了一个具有成本效益和用户友好的解决方案.
  • 这项技术有可能赋予以公民为基础的水质监测计划的力量.
  • 传感器的易用性和准确性使其适合在各种环境条件下部署.