Can examine beverages and link C content in 3 seconds

Can examine beverages and link C content in 3 seconds
It is reported ' Reporter Jiang Peng) The iron content in water is zero, the color of the test paper is white; If the content is 2 milligrams / each liter, test paper will become thin and pink; If has reached terrific 100 milligrams / each liter, test paper has become orange; If do not have inferior nitrate in the overnight jardiniere soup, the test paper is white, if it is enough to reach the carcinogenic density, rose which become gorgeous of test paper - -The intersection of Shanghai and the intersection of normal university and the intersection of department of chemistry and the intersection of breast and great professor and chemical test paper that seminar develop jointly Yu, let citizens' diet security measure tools. It is reported, these magical test paper, even the content of vitamin C in the beverage, can all measure within two or three seconds.

Talk about test paper, everybody will remember at oneself study in the middle school chemical course probably, the teachers will all demonstrate by chemical test paper in professor's impractical alkalinity course: The acid material will make the test paper red, the alkaline material will make the test paper blue. Besides sour alkalinity, the test paper can also test whether the heavy metal exceeds standard, contains inferior nitrate in the meal in water.

It is introduced, research and develop " magical test paper " Original intention come from daily life. The human body may contact the harmfulness material every day, for example a lot of citizens think that use iron a pot of stir-fry, also mend irons healthily, but few people know the iron pan if improperly use, but the rust produced may become strong carcinogen. The vegetables will be carcinogenic the previous night that people say often, it is not in fact that the vegetables are problematic, but in the vegetables of the previous night after inferior nitrate included is combined with ammonium in the human body, will turn into strong carcinogen inferior ammonium nitric acid. And ammonium exist in all animal's albumens nearly, so vegetables formate appear inferior the intersection of nitric acid and possibility of ammonium in human body the previous night, it is nearly a hundred per cent.

Professor Yu explains, the chemical test paper mainly utilizes the chemical analysis principle, analyse paper as carriers with layer, can support many kinds of reagent, can test swiftly, simply and conveniently. General water analysis, need certain instrument and equipment and professional the intersection of analysis and personnel, finish, and adopt chemical test paper test, so long as soak the test paper to one second in the liquid, color of test paper can tell you whether what is some content of compound rapidly.

As early as 8 years ago, Professor Yu paid close attention to the demand for quality of drinking water quantity according to people at that time, set up the water analysis office, and begin to research and develop the test paper of water quality. Seminar find, influence to except hardness of water, have, harmful to the element while being many kinds of water quality. For this reason, the seminar chooses calcium magnesium element at first, because these two elements are most difficult to remove in water, if the content of calcium magnesium element is qualified, other metallic elements should have been already removed. Subsequently, the seminar has also developed a series of relevant test paper, the content test used for all kinds of pollutant in the river, especially in the area different to popularize of the instrument and equipment, the scope of application of the chemical test paper is more extensive.

Can examine beverages and link C content in 3 seconds