Detecting tablet for measuring manganese content in water bodies

Abstract

The invention discloses a detecting tablet for measuring manganese content in water bodies, relating to preparation and application methods of tablets for detecting manganese content in water quality and solid samples. The detecting tablet is prepared from potassium periodate, potassium pyrophosphate, anhydrous sodium acetate, sulfamic acid and citric acid, which are mixed according to a certain proportion and then are subjected to tabletting. When in use, the detecting tablet is directly soaked in a 10mL water sample, the water sample is slightly shook for 5-10 minutes to dissolve the detecting tablet, and the manganese content is measured by a spectrophotometer or a liquid colorimeter. The detecting tablet for measuring manganese content disclosed by the invention is convenient to carry and easy to store, no reagent is added during an application process, and the measurement result is accurate, so that the detecting tablet is suitable for onsite detection on manganese content of solid materials and the water bodies such as surface water, underground water, domestic sewage and industrial wastewater.

Description

technical field [0001] The invention relates to a method for preparing and using a test piece for measuring manganese content in water, and belongs to the technical field of analysis and test. Background technique [0002] Heavy metals in water and food are hard to degrade, poor in mobility, potentially harmful, and long-term irreversible. Their presence in the environment will seriously affect the yield and quality of drinking water and agricultural and livestock products. More importantly, they can pass through The biomagnification of the food chain enters the human body and threatens human health. In addition to mining, battery production, non-ferrous smelting, catalysts, leather, dyes, pesticides and other fine chemical enterprises are accompanied by a large amount of heavy metal emissions. In the middle of the 20th century, bone pain disease caused by cadmium pollution in Toyama Prefecture, methylmercury polluted wheat in Iraq caused more than 80,000 people to be poiso...

AI Technical Summary

Problems solved by technology

As an on-site detection method, Fu Yanfang and others used the potassium periodate oxidation method to study a reagent that can develop color at room temperature and quickly determine the concentration of manganese in water. The reagents are divided into reagent Ⅰ (buffer) and reagent Ⅱ (oxidant). The solid powder is individually packaged and has a long shelf life. It is an accurate, sensitive, fast and easy method for the determination of manganese (Fu Yanfang, Deng Jinhua, Cai Shuzhen, etc., Research on the Rapid Detection Method of Manganese in Water, Guangdong Chemical Industry, 2010, 5(37): 200-206), but no reports on the development of manganese detection sheets have been found