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New technology for the detection of pH
Miao Yuqing1, Chen Jianrong, Fang Keming
1Laboratory of Bioanalysis and Biosensor, College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China. biosensors@zjnu.cn
Journal of Biochemical and Biophysical Methods
|May 17, 2005
Summary
This review explores diverse pH measurement techniques beyond traditional glass electrodes. It covers advancements like ISFET, optical, nano, and polymer methods, highlighting new trends in chemical sensing.
Area of Science:
- Analytical Chemistry
- Materials Science
- Biochemistry
Background:
- pH measurement is a fundamental technique in biochemical and chemical laboratories.
- The glass electrode has been the standard for pH detection since its inception.
- Significant advancements have expanded the range of pH detection methodologies.
Purpose of the Study:
- To provide a comprehensive review of various pH detection methods.
- To discuss the evolution of pH sensing technologies.
- To explore emerging trends and future directions in pH measurement.
Main Methods:
- Review of established pH detection techniques including metal/metal oxide sensors.
- Analysis of advanced methods such as ion-sensitive field-effect transistors (ISFET).
- Exploration of fiber-optical, nanotechnique, and conducting polymer-based pH sensors.
Main Results:
- The development of diverse pH sensing technologies beyond the traditional glass electrode.
- Extensive research has led to specialized methods for various applications.
- New materials and device architectures are continuously being developed.
Conclusions:
- The field of pH detection has evolved significantly with numerous innovative techniques.
- Emerging trends point towards miniaturization, enhanced sensitivity, and multi-functional sensing.
- Continued development in materials and nanotechnology will further advance pH measurement capabilities.