How to Choose a Dedicated pH Electrode for Non-Liquid Sample Measurement

2026-07-23

In food processing, laboratory testing, and quality control, pH value is a crucial indicator for determining the acidity, alkalinity, stability, and quality of products. Traditional spherical electrodes are primarily suitable for liquid sample testing, such as beverages, aqueous solutions, and chemical reagents. However, for non-liquid samples like cheese, meat, fruit, and dough, due to their dense structure and uneven water content distribution, ordinary spherical electrodes often struggle to achieve accurate measurements. Therefore, selecting a suitable pH electrode is essential for improving detection efficiency and data accuracy.

How to Choose the Right pH Electrode for Small Samples

2026-07-02

In laboratory analysis, biomedical research and development, and scientific testing, pH measurements of trace samples are frequently required. However, when the sample volume is small or the container opening is narrow, conventional pH electrodes often cannot be easily inserted into the container, causing considerable inconvenience to the testing process. Therefore, choosing a suitable miniature pH electrode is crucial for this application scenario.

How to Choose the Right pH Electrode for Deep Container Measurements

2026-06-25

In laboratory testing, chemical production, bio-fermentation, and wastewater treatment, pH electrodes are essential tools for measuring the acidity and alkalinity of liquids. However, many users encounter a common problem: the sample container is deep, and electrodes of standard length cannot reach the liquid being measured, affecting the accuracy of the measurement results.

Why Is Measuring Low-Conductivity Water Samples Difficult? Choosing the Right pH Electrode Is Crucial

2026-06-11

In the water treatment, laboratory analysis, electronics and semiconductor, and pharmaceutical industries, pH measurement of low-conductivity water samples has long been considered a specialized application scenario. For samples such as tap water, rainwater, deionized water, and ultrapure water—which possess low ion content—standard electrodes often suffer from issues such as slow response times, data drift, and insufficient stability during the measurement process. Therefore, selecting a pH electrode specifically designed for low-conductivity environments is critical for enhancing measurement accuracy.

REX × PHYSICO-OPTICAI | Invitation to PMEC & CPHI 2026

2026-06-05

How to Correctly Select a pH Electrode in Hydrofluoric Acid Environments? Many Companies Overlook This Crucial Detail

2026-06-04

In industries such as chemical manufacturing, electronics cleaning, metal etching, and semiconductor fabrication, hydrofluoric acid (HF) is a ubiquitous yet highly corrosive medium. Due to its unique chemical properties, standard pH electrodes often have an extremely short lifespan in hydrofluoric acid environments—sometimes failing or sustaining damage within a very short period. Consequently, selecting the appropriate pH electrode based on specific fluoride ion concentrations is critical for ensuring measurement stability and minimizing maintenance costs.