Mercury is a chemical element, the element symbol Hg, the 80th position of the periodic table. It is the only metal that exists as a liquid under normal temperature and pressure.
The nature of mercury
Mercury is a silvery white shiny heavy liquid, chemically stable, insoluble in acid and alkali. Mercury can evaporate at room temperature, and most of mercury vapor and mercury compounds are highly toxic (chronic). Mercury has a long history of use and has a wide range of uses.
Mercury is slightly soluble in water, and its solubility increases in the presence of air. Mercury is ubiquitous in nature. Generally, animals and plants contain trace amounts of mercury. Therefore, there are trace amounts of mercury in our food, which can be metabolized through excretion and hair.
Distribution of mercury
Mercury is a naturally occurring element found in air, water and soil. Mercury is a highly toxic and non-essential element, which is widely present in various environmental media and food chains (especially fish), and its traces are all over the world.
The world's mercury resources are about 700,000 tons, and the basic reserves are 300,000 tons. The main countries with mercury reserves and their basic reserves are 90,000 tons in Spain, 69,000 tons in Italy, 81,400 tons in China, and 45,000 tons in Kyrgyzstan.
The world's mercury deposits are mainly distributed in the Tethys-Himalayan structural belt. The main types of mercury deposits are carbonate type, followed by clastic rock type and magmatic rock type. Among them, carbonate type is the most important, accounting for 90% of the reserves of mercury deposits.
What is Mercury used for?
Application of mercury
The most common application of mercury is the manufacture of industrial chemicals and its application in electronic or electrical products. Mercury is also used in thermometers, especially thermometers that measure high temperatures.
More and more gaseous mercury is still used in the manufacture of fluorescent lamps, and many other applications have been gradually eliminated due to health and safety issues, replaced by Galinstan alloys, which are less toxic but much more expensive.
In addition to the uses of mercury
Gold can be decomposed from its minerals, so it is often used in gold mines. Instruments such as barometers and diffusion pumps. Gaseous mercury is used in mercury vapor lamps. Used to make liquid mirror telescopes.
Other uses: mercury switch, insecticide, process of producing chlorine and potassium hydroxide, preservative, used as electrode, battery and catalyst in some electrolysis equipment.
What is the harm of Mercury?
Toxicity of mercury
It should be noted that the ingestion of a small amount of liquid mercury generally does not cause serious poisoning reactions (there is data that it can form organic compounds in the organism), but mercury vapor and mercury salts (except for some extremely small solubility such as mercury sulfide) It is highly toxic and can cause brain and liver damage after oral, inhalation or contact.
Mercury can accumulate in organisms and is easily absorbed by the skin, respiratory and digestive tracts. Minamata disease is a type of mercury poisoning.
Mercury destroys the central nervous system and has adverse effects on the mouth, mucous membranes and teeth. Prolonged exposure to high mercury environment can cause brain damage and death. Despite the high boiling point of mercury, the saturated mercury vapor at room temperature has reached several times the poisoning dose.
Mercury has a corrosive effect on the digestive tract and damages the kidneys and capillaries.
Acute poisoning is mostly caused by accidental ingestion of mercury, with symptoms caused by gastrointestinal corrosion. After absorption, it will cause kidney damage, resulting in urinary obstruction and capillary damage, causing plasma loss, and even shock. Early application of dimercaptopropanol and other symptomatic measures are mostly effective.
Chronic poisoning is generally seen in industrial poisoning, stomatitis and toxic encephalopathy occur, the latter manifested as depression, shrinking and other mental symptoms and muscle tremor.
Note: The above content is for reference only! If you have similar symptoms, seek medical attention immediately!
What specimen can be detected by BALLYA Mercury Test?
Specimen include: all kinds of feed, grains, food and medicine. Widely used in feed industry and food processing industry. You can choose the right products according to your needs.
Significance of testing Mercury
To protect the animal have health feed, food, seafood and medicine, avoid contaminated food. The excess mercury is harmful for animal being, can’t take too much in the body.
1. Take some feed or food specimen 2. Add the supernatant to cassette 3. Wait for 15 minutes to result 4. The details of operation, refer to the kit instruction
Limitations of BALLYA Mercury Test?
BALLYA Mercury Test is a qualitative test kit. It’s only for screening purpose. If have positive cases or suspected case, maybe use other detection method to make a further detection, such as, ELISA, PCR, qPCR, etc.
BALLYA Mercury Test is suitable for the detection of mercury residues in feed, grain, food and medicine. Simple operation, high accuracy and short detection time are the characteristics of this product.
It can be widely used in food and drug administration, health departments, higher education institutions, scientific research institutes, agricultural departments, animal husbandry and veterinarians, breeding farms, slaughterhouses, food and meat products deep processing enterprises, inspection and quarantine departments and other units.