Adaptive Flow Titration System with Optical Endpoint Detection
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Solution Overview
Problem
Automated titration systems face challenges in accurately determining the endpoint of reactions and require significant time, making it impractical for continuous monitoring of solution concentrations, especially in processes where manual operation is not feasible.
Innovation Solution
An automated titration system with a reaction manifold, sample and titrant pumps, and a controller that adjusts flow rates and uses detectors to continuously mix and analyze a sample stream, allowing for variable flow rates and titrant concentrations to accurately determine analyte concentrations within a specified range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated titration systems are used to determine endpoint of reactions, then productivity is improved, but measurement precision deteriorates due to difficulty in accurately determining endpoint
Solution Approach 1:
An optical detector is introduced as an intermediary between the titration reaction and the automated system control. The detector optically monitors the reaction mixture and provides objective endpoint detection signals, eliminating the subjectivity and inaccuracy of automated visual judgment while maintaining automation benefits.
Solution Approach 2:
The patent replaces the mechanical/visual endpoint detection method with an optical detection system. Instead of relying on automated cameras or visual inspection mechanisms, the system uses optical sensors to detect color changes or other optical properties at the endpoint, providing more precise and reliable measurement.
2Productivity
If automated titration systems are used for continuous monitoring, then productivity is improved, but loss of time increases due to large amount of time required to complete process
Solution Approach 1:
The system implements continuous flow titration where the sample stream continuously flows through the reaction manifold and mixes with titrant in real-time. The optical detector continuously monitors the reaction, enabling continuous monitoring applications without discrete batch processing delays.
Solution Approach 2:
The system performs preliminary mixing of the sample stream with titrant in the reaction manifold before detection. This pre-mixing ensures the reaction is well-established and the endpoint is clearly defined before optical detection occurs, reducing the time required for each measurement cycle.
3Device complexity
If fixed flow rates are used in titration systems, then device complexity is reduced, but adaptability deteriorates due to inability to measure wide range of analyte concentrations
Solution Approach 1:
The patent implements variable flow rate capability in the titration system. The flow rate of titrant or sample stream can be dynamically adjusted based on the expected concentration range of analytes, allowing the same system to accurately measure both low and high concentrations without hardware changes.
Solution Approach 2:
The system changes operational parameters (flow rates) to adapt to different measurement requirements. By adjusting flow rate parameters, the system can optimize the titration process for different analyte concentration ranges, expanding its measurement capability without increasing physical complexity.
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 system enables efficient and accurate continuous monitoring of analyte concentrations, reducing the need for manual operation and minimizing analysis time, while maintaining measurement reliability across a dynamic range of concentrations.
Implementation Method 1
a detector for detecting a titration endpoint of the reaction between the analyte and the titrant
Implementation Method 2
The detector of the automated titration system can be an oxidation-reduction potential probe, an amperometric probe, an optical sensor
Implementation Method 3
a sample pump for pumping the continuously flowing and refreshed sample stream into the reaction manifold; a titrant pump for pumping the titrant into the reaction manifold
Implementation Method 4
a reaction manifold for mixing a continuously flowing and refreshed sample stream containing an unknown concentration of an analyte with titrant
Data Source
AI summary
Systems for quantifying a target analyte concentration in a process solution are provided and can be used, for example, in methods for quantifying a target analyte concentration. These systems and methods include continuous automated titration methods that use titration chemistries to measure the target analyte concentration in the process solution. The method steps provide for efficient and robust automated titration methods for a variety of target analytes and can include methods that provide for methods that provide a dynamic range for measurement of target analyte concentrations.