1 principle Hydrogen chloride and hydrochloric acid in the air were collected by a porous glass plate with an alkaline solution, separated by column separation, conductivity detector, retention time, peak height or peak area. 2 instrument: porous glass plate absorption tube; air sampler, flow 0 ~ 1L / min; microporous membrane, aperture 0.2μm; filter device; with a scale test tube, 5ml; Qingdao P...
Determination of Aminosulfonic Acid and Sulfuric Acid in Top
In the nitrogen cycle, ammonia nitrogen is oxidized to nitrite under the action of nitrosation, and nitrite is the intermediate product of ammonia conversion to nitrate. In the middle and late stages of farming, the accumulation of large amounts of excrement of aquatic animals in the water body due to the large amount of bait, the use of disinfectants on a regular basis, the killing of harmful and...
Comparison of Ion Chromatography Conductivity Detector with
Comparison of Conductivity Detector and UV Detector in Ion Chromatograph and the Comparison of Different Mobile Phase in UV Detection In the chromatographic method, the components to be tested are separated by a separation column and passed into a detector (a suppressor is added to the ion chromatographic suppression conductance detection), thus selecting an appropriate one depending on the nature...
Determination of halogen - containing oxyacids in drinking w
Drinking water with chlorine disinfection, because of its low cost, good disinfection effect is widely used. However, since 1970, studies have shown that the use of chlorine disinfection in the process may produce carcinogenic by-products such as trihalomethanes, so countries are looking for a more safe and reliable alternative to chlorine disinfection methods. Currently developed countries are mo...
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