In laboratory and industrial testing scenarios, the calibration accuracy of pH meters directly affects the reliability of measuring the acidity and alkalinity of solutions.As the pioneer of electrochemical analysis instruments in China, the Leici brand has achieved automated calibration of three core standard buffer solutions through intelligent recognition technology for multiple pH meter products, providing efficient and accurate solutions for water quality monitoring, pharmaceutical research and development, food testing and other fields.

　　1、 Three standard buffer solutions: the "gold standard" for calibration

The three standard buffer solutions automatically recognized by the Thunder Magnetic pH meter all comply with international standards (such as GB, DIN, NIST) and the requirements of the Chinese Pharmacopoeia, and their pH values cover the full range of acid, medium, and alkali:

　　1. Potassium hydrogen phthalate buffer at pH 4.00Suitable for calibration in acidic environments, commonly used for pH measurement verification of acidic solutions such as industrial wastewater and fruit juice beverages.

　　2. pH 6.86 phosphate buffer solutionAs a neutral benchmark, it has strong stability and is a key transition point in the calibration process, especially suitable for detecting near neutral samples such as pure water and drinking water.

　　3. Borax buffer solution with pH 9.18Designed for alkaline environments, it is commonly used for calibrating strong alkaline solutions such as chemical raw materials and cleaning agents to ensure the accuracy of high pH measurement.

　　2、 Intelligent recognition technology: the "automation revolution" of calibration process

The Thunderbolt pH meter achieves rapid identification and automatic calibration of standard buffer solutions through built-in intelligent algorithms and sensors.

1. Multi group buffer compatibility: Supports international standard buffer groups such as GB, DIN, NIST, etc. Users can customize calibration schemes to meet the needs of different industries.

2. One click calibration function: The instrument automatically recognizes the type of buffer solution inserted, eliminating the need for manual input of pH value. The calibration time is shortened to 30 seconds, significantly improving experimental efficiency.

　　3、 Application scenario: Full coverage from laboratory to production line

1. Environmental monitoring: The North Sea Forecasting Center of the State Oceanic Administration uses equipment to achieve continuous monitoring of seawater pH value through automatic calibration function, and the data accuracy meets the requirements of "HJ 1147-2020 Water Quality pH Determination Electrode Method".

2. Pharmaceutical industry: In the vaccine production process, instruments are calibrated with borax buffer to ensure that the pH value of the culture medium is stable at 7.2 ± 0.1, avoiding the risk of microbial contamination.

3. Food testing: In the determination of total acidity in soy sauce, the instrument is calibrated using phosphate buffer solution and combined with an automatic titration module to shorten the detection time from 2 hours in traditional methods to 15 minutes.

　　4、 Technology Inheritance and Innovation: Seventy Years of Quality Accumulation

As the birthplace of the first domestically produced pH meter, the Leici brand continues to iterate its technology, and its products have formed a complete product line from portable to desktop, from single channel to multi-channel. PHSJ-6L equipment supports IP54 protection level and firmware upgrade function, meeting GMP and GLP specifications, and has become the top choice brand for scientific research institutions and industrial enterprises.

From precise preparation of standard buffer solution to optimization of intelligent recognition algorithm, the Thunder Magnetic pH meter has redefined the calibration standard for pH measurement with technological innovation, providing global users with "accurate, stable, and efficient" detection solutions.