Analysis Using Chemical Indicators TRIZ Cases
- Pyrene-Triazine Derivatization Reagent for Amine Analysis
A pyrene derivative with a triazine functional group enables selective fluorescence derivatization of amines.
- Blood Spot Quantification Using Hydrophilic Marker Normalization
Hydrophilic markers in dried blood spots enable volume normalization for accurate cholesterol quantification despite specimen variations.
- Nitrate Detection via Copper Oxidation and Ion Exchange
Cation exchange resin converts nitrate to nitric acid, driving copper oxidation and colorimetric absorbance measurement without toxic cadmium.
- Dry Reagent Strip for Portable Liquid Analyzer
A dry reagent strip on a solid support produces color indications to detect target molecules or ions in portable liquid analyzers.
- All-in-One Specimen Cup with Integrated Color Test Strip
An all-in-one specimen cup integrates a color test strip and reference chart on its lid for biological material analysis.
- Fluorescence Detection of Amine-Based Substances Using Protonated PQP
Protonated PQP reporter changes fluorescence upon amine interaction, replacing complex instruments with portable vapor-phase detection.
- Zinc Measurement Using Fluorescent Sulfonic Acid Indicator
A sulfonic acid indicator reacts with zinc ions to produce a measurable fluorescence intensity change proportional to concentration.