Platinum-Cobalt Standard Colorimetric Method for Detecting Water Color

The chromaticity of water quality is an indicator when the color of natural water or various treated water is quantitatively measured. The color of water indicates that it has been polluted to a certain degree, and the quantitative degree of color is chro

time:2021/2/5 17:11:20

The principle of Kjeldahl method to detect the content of ammonia nitrogen in water

Kjeldahl nitrogen refers to the nitrogen content in water measured by the Kjeldahl method. It includes ammonia nitrogen and organic nitrogen compounds. Such organic nitrogen compounds refer to proteins, amino acids, nucleic acids, urea and a large number

time:2021/3/5 14:53:16

The preparation method of reagent when detecting Fe2+ in water

Heavy metal detection accounts for a considerable proportion of water pollution, and heavy metals are highly toxic. Excessive heavy metals in water are very harmful to the ecological environment and human health. Today we will introduce the principle of F

time:2021/3/3 14:20:23

Detection method of biochemical oxygen demand in water

Biochemical oxygen demand detection refers to the amount of dissolved oxygen consumed by the biochemical process carried out by microorganisms decomposing certain oxidizable substances in water, especially organic matter, under aerobic conditions. This bi

time:2021/3/1 14:59:29

Principle of water quality detection by direct potential method

The direct potentiometric method used in water quality detection is a quantitative analysis method by measuring the electromotive force in the galvanic cell. In the potentiometric method, the galvanic cell consists of two electrodes. An indicator electrod

time:2021/2/25 14:40:14

The principle of potassium permanganate to determine the content of CODMn in water

Common reducing inorganic substances such as ferrous salts, sulfides, and nitrites in water and organic substances oxidized under these conditions can consume potassium permanganate. Therefore, some people regard the index of permanganate as the water bod

time:2021/2/23 13:38:17

Determination of Dissolved Oxygen in Water by Iodometry

Oxygen is one of the main components of the atmosphere. Because surface water is directly exposed to the air, it also contains a certain amount of oxygen. We call the oxygen dissolved in water the dissolved oxygen, and every liter of water contains oxygen

time:2021/2/20 15:06:27

Iodometric method for detecting dissolved oxygen in water

Oxygen is one of the main components of the atmosphere. Because surface water is directly exposed to the air, it also contains a certain amount of oxygen. We call the oxygen dissolved in water the dissolved oxygen, and every liter of water contains oxygen

time:2021/2/18 15:14:36

Method of using acidity meter to test the pH value of water quality

1. How to use the pH meter1. According to the requirements of the instrument manual, turn on the power, press the power button, and the instrument will warm up for 30 minutes.2. To install the electrode, first clamp the electrode clip on the electrode rod

time:2021/2/3 14:21:49

How to use the dissolved oxygen detector

Iodometry is a relatively high measurement method when detecting dissolved oxygen in water quality, but this type of method is mainly suitable for water with relatively high cleanliness such as source water and surface water. For some seriously polluted i

time:2021/2/1 14:17:10