Analytical Device Reagent Segmentation for Storage Stability
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Solution Overview
Problem
Existing analytical devices require frequent maintenance due to the limited storage life of reagents, which are degraded by contact with air, leading to continuous worsening of analytical results over time.
Innovation Solution
An analytical device with separate supply containers for reagent components that are mixed just before use, minimizing exposure to air and degradation, using a controlled mixing apparatus to produce a predetermined amount of reagent for each analysis, and incorporating a control unit to monitor and adjust the storage life based on consumption and environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If reagents are stored in supply containers for automated analytical devices, then the device can operate automatically for extended periods, but the reagents degrade due to contact with air, limiting their storage life and requiring frequent maintenance
Solution Approach 1:
The reagent is divided into multiple separate components stored in different containers. Each component has extended individual stability, and they are combined only when needed for analysis. This segmentation allows each component to be stored separately without degradation from air contact, while still enabling automated operation.
Solution Approach 2:
The reagent components are prepared and stored in their stable, separated states in advance. The mixing of components to form the active reagent occurs just before use through automated mixing apparatus, ensuring the reagent is fresh and stable without requiring long-term storage of the mixed formulation.
2Duration of action of stationary object
If reagents are stored in sealed containers to prevent degradation, then storage life is extended, but the device complexity increases due to additional sealing mechanisms and gas exchange systems
Solution Approach 1:
Instead of sealing a single reagent container with complex gas exchange systems, the reagent is segmented into multiple unsealed or简单地 sealed containers. Each container can be opened and refilled independently without affecting others, eliminating the need for complex centralized sealing and gas management systems.
Solution Approach 2:
The problematic air-reagent contact interface is extracted and eliminated by storing reagent components in separate containers that can be independently managed. The mixing occurs in a controlled environment just before use, removing the need for continuous sealing and gas exchange mechanisms during storage.
3Productivity
If reagents are mixed in advance to enable automated analysis, then analysis speed increases, but reagent degradation accelerates due to extended exposure to air
Solution Approach 1:
The reagent components are prepared and stored in their stable, separated states in advance. The mixing of components to form the active reagent occurs just before use through automated mixing apparatus, ensuring the reagent is fresh and stable without requiring long-term storage of the mixed formulation. This enables rapid automated analysis while maintaining reagent stability.
Solution Approach 2:
The system automatically mixes reagent components immediately before analysis through integrated mixing apparatus, eliminating the need for manual preparation. This self-service mixing ensures reagents are always fresh and stable while maintaining high analysis throughput and automation.
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
Enables high-quality analytical results over an extended period without the need for operator intervention, as the reagents are produced in the required amount just before analysis, maintaining their effectiveness and reducing waste.
Implementation Method 1
a mixing apparatus, especially a mixing apparatus controllable by the control unit, for mixing a predetermined amount of the first reagent component contained in the first supply container with a predetermined amount of the second reagent component contained in the second supply container to produce a predetermined amount of the reagent
Implementation Method 2
the reagents are selected so that the chemical reaction is detectable by means of physical methods, for example, through optical measurements or by means of potentiometric or amperometric sensors or through a conductivity measurement
Implementation Method 3
For example, the chemical reaction can affect a coloring or a color change, which is detectable photometrically, thus through optical means
Data Source
AI summary
An analytical device, including: a processing system for treating a liquid sample and for supplying the treated liquid sample to a measuring cell, to the liquid sample; a measuring transducer for registering a measured value of the treated liquid sample variable; a control unit to control the processing system; and an evaluating unit for determining the measured variable based on the measured value registered by the measuring transducer. The analytical device includes at least one first supply container containing a first reagent component, at least one second supply container containing a second reagent component and a mixing apparatus, for mixing a predetermined amount of the first reagent component contained in the first supply container with a predetermined amount of the second reagent component to form a predetermined amount of the reagent.