The halogenated hydrocarbons in the collected surface water samples were adsorbed by solid-phase microextraction fibers, enriched in the headspace, and detected by gas chromatography and electron capture detector (ECD). Qualitative by chromatographic rete

Mercury exists in various forms in the natural environment and is very variable. For example, mercury compounds in the environment are converted to methylmercury by microorganisms. This organic compound of methyl and mercury is not easily decomposed and a

In the daily testing of drinking water, one of the sensory properties and general chemical indicators is very special, that is, odor and taste. Many people may think that this test is very simple, but we want to tell you that this test is not simply a mat

The principle of graphite furnace atomic absorption spectrophotometry to detect molybdenum ions or titanium ions in water is to filter or digest the water sample to be tested and inject it into a graphite furnace atomizer. The atom produces selective abso

The principle of detecting methanol and acetone in water by headspace gas chromatography is that under certain temperature conditions, the volatile components in the sample in the headspace bottle volatilize to the headspace to generate vapor pressure, an

At present, whether it is drinking water, surface water or sewage, ammonia nitrogen can roughly determine the change of water quality. Before we introduced Kjeldahl method, Nessler method, etc., today we will introduce another method - salicylic acid spec

The detection principle of calcium and magnesium ions in regenerated water is to spray the water sample into the flame through atomization, and the calcium and magnesium ions are pyrolyzed into ground state atoms. The absorbance of calcium and magnesium a

Faecal coliform is a very important parameter to know if and to what extent surface water is contaminated with fecal water. Therefore, how to quickly, reliably and accurately detect the content of fecal coliforms is of great significance to the health of

Generally, most of the iron ions in reclaimed water come from industrial waste water. These waste water will be treated once before leaving the site, and only after reaching a certain standard can they enter the sewage treatment plant and domestic waste w

Many people have talked about the detection method of anionic synthetic detergents in water. Before, we also introduced how to detect anionic surfactants in reclaimed water. When it comes to anionic synthetic detergents, everyone is also familiar with the