Points for attention in using trace element detector

1. After the installation of the large instrument, the testing information should be set up. The name of the unit should be changed to the name of the service station, the name of the testing doctor and the doctor to be sent to the station. The name of the doctor in charge of the station and the testing unit should be changed to ug/L.

2. Before the first test every day, the electrode must be modified before the test, to avoid inaccurate test data, detailed operation please refer to the instructions.

3. Before testing, pay attention to observe whether the saturated potassium chloride in the glass electrode is sufficient, the level of the saturated potassium chloride should not be lower than the silver chloride electrode or the white column of the calomel electrode, and there should be no bubbles below the level.

4. The glassy carbon electrode of large instrument should have good smoothness. It should be wiped frequently to ensure the surface of electrode is clean and bright. When not used, it should be soaked in distilled water to protect the electrode.

5. If the large instrument is not used for a long time, it will lead to slow reaction and slow reaction in the first test, so it is recommended to use it at least once a day.

6. The same sample only take the first test results, multiple tests will appear different results are normal phenomenon, because each test sample elements ions will be absorbed part of the probe, the national allowable error between 10% - 15%.

Throughout the ages, exploring the mystery of life, protecting human health and prolonging life has become a dream of mankind. At present, it has been found that many elements in the body are less than one-thousandth of the body weight, and the total amount is less than one-thousandth of the body weight. Trace elements are the core components of enzymes, hormones, vitamins and other active substances in human body, which play an important role in normal metabolism and health. Modern medicine has proved that the amount of trace elements in human body is closely related to cancer, cardiovascular disease and human life span. Therefore, trace elements are known as the elements of quantity and power.

In recent years, more and more attention has been paid to the relationship between trace elements and human health. Foods containing certain trace elements have emerged as the times require. The so-called trace element is for a large number of elements. A large number of elements in the human body, also known as the main elements, a total of 11, according to the amount of the order: oxygen, carbon, hydrogen, nitrogen, calcium, phosphorus, potassium, sulfur, sodium, chlorine, magnesium. Among them, oxygen, carbon, hydrogen and nitrogen account for 95% of the human body's quality, while the rest are about 4%. Besides, trace elements account for about 1%. Among the essential elements of life, there are 14 kinds of metal elements, of which potassium, sodium, calcium and magnesium account for more than 99% of the total metal elements in the human body, and the other 10 elements are very few. Traditionally, the content of elements higher than 0.01% is called a constant element, lower than this value of the elements, known as trace elements. Although trace elements are very few in the body, their role in life can not be underestimated. Without these essential trace elements, the enzyme activity will be reduced or completely lost, the synthesis and metabolism of hormones, proteins and vitamins will be hindered, human life process will be difficult to continue.

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