ECL Measuring Cell Gas Bubble Detection via Light Guide
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current electrochemiluminescence (ECL) methods for detecting analytes in liquid samples face challenges in accurately monitoring and separating liquids due to gas bubbles, which can lead to inconsistent and unreliable measurements.
Innovation Solution
Incorporating a light source into the measuring cell to detect gas bubbles within the transport path, allowing for controlled analysis of light intensity and duration to determine bubble properties, thereby ensuring accurate separation and measurement of analytes by providing a measurement state when deviations from target states occur.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gas bubbles are present in the transport path during ECL measurement, then liquid mixing occurs and measurement reliability deteriorates, but detecting and managing gas bubbles requires additional monitoring mechanisms
Solution Approach 1:
The patent combines the gas bubble detection function with the existing optical detector used for ECL measurement. The same detector that measures electrochemiluminescence signal is also used to detect light transmitted through or scattered by gas bubbles in the transport path, eliminating the need for a separate detection system and reducing overall device complexity while maintaining measurement reliability.
Solution Approach 2:
The optical detector is designed to perform multiple functions: detecting electrochemiluminescence signals for analyte measurement and detecting gas bubbles in the transport path. This multi-functionality allows the system to monitor both analytical signals and flow conditions using a single component, improving reliability without proportionally increasing device complexity.
2Difficulty of detecting and measuring
If light source is incorporated into measuring cell to detect gas bubbles, then bubble detection capability is improved, but device complexity increases
Solution Approach 1:
The light source is integrated into the existing measuring cell structure, combining bubble detection functionality with the analytical measurement chamber. This integration allows gas bubble detection to occur within the same spatial envelope as the ECL measurement, avoiding the need for separate detection chambers or external monitoring systems.
Solution Approach 2:
The measuring cell is designed to serve dual purposes: performing electrochemiluminescence measurements and detecting gas bubbles through light transmission or scattering. The light source and optical detector are positioned to enable both analytical signal detection and flow condition monitoring without requiring separate dedicated structures for each function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the reliability and reproducibility of ECL measurements by effectively detecting and managing gas bubbles, preventing liquid mixing and ensuring consistent flow conditions, thus improving the accuracy of analyte detection.
Implementation Method 1
Incorporating a light source into the measuring cell to detect gas bubbles within the transport path, allowing for controlled analysis of light intensity and duration to determine bubble properties
Implementation Method 2
a working electrode for excitation of electrochemiluminescence in the liquid sample
Data Source
AI summary
A method of monitoring detection of an analyte in a liquid sample using a measuring cell, the measuring cell comprising a working electrode for excitation of electrochemiluminescence in the liquid sample, an optical detector for detecting the excited electrochemiluminescence, the excitation and detection being performed in an measurement cycle, the measurement cycle comprising transporting the liquid sample via a transport path to the working electrode using a support liquid, the method comprising: coupling light of a light source into the transport path during part of the measurement cycle, the transport path forming a light guide between the light source and the optical detector, detecting the coupled light by the optical detector, analyzing the detected light for a gas bubble in the transport path, providing a measurement state if the result of the analysis deviates from a target state regarding the presence of a gas bubble in the transport path.