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 role of metal indicator in water quality testing

When detecting water quality, different items use different reagents. For example, in the process of coordination titration of heavy metals in water, in order to obtain relevant parameters more accurately, indicators are used to assist detection. The reag

time:2021/10/14 10:56:00

Detection method of heavy metal cadmium in water

The heavy metal cadmium in the water mainly comes from the mining of different minerals, such as coal mines, aluminum mines and copper mines. In practical applications, cadmium detection methods mainly use atomic absorption methods, such as direct inhalat

time:2021/10/12 9:13:16

Classification and selection methods of chemical reagents for water quality testing

Regardless of which method you use when conducting water quality testing, various chemical reagents are used in the experiment. Therefore, mastering the classification, specifications, properties and methods of use of water quality testing reagents is an

time:2021/10/9 10:59:01

Problems that need to be paid attention to when detecting aluminum content in water

Most of the aluminum in daily drinking water comes from the alum used in the treatment. Under normal circumstances, the content of aluminum in natural water is actually very low. In addition, the "Sanitary Standards for Drinking Water" clearly s

time:2021/9/30 9:28:41

Method for detecting dissolved solids in water

There are two types of solids in water, soluble and insoluble, but there are only two types of total solids and soluble solids in the measurement. In the previous article, we have already introduced how to use the gravimetric method to detect total solids

time:2021/9/26 11:53:23

Problems that need to be paid attention to when detecting dissolved oxygen in water by iodometry

The principle of iodometric detection of dissolved oxygen in water is mainly through the oxidation of divalent manganese ions by dissolved oxygen in water to trivalent or tetravalent manganese in an alkaline solution. In this way, the dissolved oxygen is

time:2021/9/23 10:14:00

New silver salt spectrophotometric method to detect arsenic in water

In the "Urban Water Supply Quality Standard", one of the toxicological indicators clearly stipulates that the arsenic content in drinking water should not exceed 0.01mg/L. It can be seen that the excessive arsenic content in water is a very seri

time:2021/9/18 9:51:02

Matters needing attention in the detection and sampling of volatile phenols in water

The detection of volatile phenols in water is more complicated than some other substances. The main reason is that the volatile phenol in the water is easily polluted and interfered during the collection and detection process, which leads to inaccurate me

time:2021/9/16 11:21:38

Problems that need to be paid attention to when detecting sulfide in water

In daily water quality testing, we can indirectly determine the content of sulfide in water by interacting with iodine under acidic conditions, and we can also determine the sulfide in water by gas phase molecular absorption spectroscopy. However, no matt

time:2021/9/14 11:50:29