Acidity refers to the definition of the total PH value of a substance that can neutralize a strong base in water: PH=-lg{H+} 1. The greater the value of acidity, the stronger the acidity of the solution. 2. At any temperature, medium The sexual solution AG is always 0. In contrast, it is customary to assume that the neutral solution at 25 degrees Celsius has a pH of 7, and the pH of the neutral solution at other temperatures is not 7. In addition, the range of acidity AG is R, whereas the range of pH is conventionally 0. ~14.
The acidity meter is a commonly used instrument and equipment. It is mainly used to accurately measure the pH value of liquid medium. It can also measure the MV value of ion electrode potential with the corresponding ion selective electrode. It is widely used in industrial, agricultural, scientific research, environmental protection and other fields. A pH meter is an instrument that measures the pH of a solution. The body of the pH meter is a precision potentiometer. During the measurement, the composite electrode is inserted into the solution to be tested. Due to the difference in acidity (hydrogen ion concentration) of the solution to be tested, different electromotive force is generated, which is amplified by a DC amplifier, and finally the reading solution (voltmeter) indicates the solution to be tested. pH value. The pH meter can be used in the range of 0 to 14 pH.
The pH meter is available in desktop, portable, and stylus types. The reading indicators are digital and analog.
PH meter is a commonly used instrument and equipment, which is mainly used to accurately measure the pH value of liquid medium. It can also measure the MV value of ion electrode potential with the corresponding ion selective electrode. It is widely used in industrial, agricultural, scientific research, environmental protection and other fields.
Classification of PH pH meter:
According to the needs of production and life, people have scientifically researched and produced many types of pH meters: According to the measurement accuracy, they can be divided into 0.2, 0.1, 0.01 or higher precision.
According to the volume of the instrument, there are pen-type (mini), portable, desktop and online continuous monitoring and measurement online. According to the requirements of use: Pen type (mini type) and portable PH pH meter are generally used by inspectors for on-site inspection. The accuracy level of the PH pH meter is chosen according to the accuracy required by the user's measurement.
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