Trace element analyzer is mainly used for quality supervision of maternal and child health care.

Trace element analyzer manufacturer China is the country with the longest history of using trace elements. Stone, sediment, shells and metals have been used in traditional Chinese medicine for a long time. Trace elements play a special and important role in the chemical process of human life. In order to detect trace elements and control harmful trace elements, trace element analyzer came into being.

At present, the microelement analyzer is mainly used in health and epidemic prevention, hospitals, maternal and child health care quality supervision, environmental protection research institutions and other departments to do a variety of microanalysis and trace analysis. Its detection methods are mainly divided into three categories: optical principle, atomic absorption spectrometry and electrochemical analysis.

First of all, through the optical principle of testing, using optical principle, through lens acquisition and amplification to generate the image of the nail to be examined, on television or monitor display invisible things, analysis, and then draw a conclusion, used to detect the human orthopedics required mineral elements (calcium, iron, zinc and selenium, etc.) is normal. The process is simple and the price is low, but the result is not accurate. Mostly used to promote health care products, hospital clinics are absolutely useless.

Repeatability and stability, which is the most basic requirement of instrument, is the basis of analysis and inspection. If this indicator is not good, others will not be able to talk about it. If the same sample is detected, the result is very high and low, which means that there is a problem with the instrument. If you look at the actual measurement of the instrument, some manufacturers are avoiding this problem because of the poor performance of the instrument and the fear of being seen by others. In fact, some manufacturers of instrument coefficient of variation between 10-20%, the error greatly exceeded the relevant provisions, so that the results of low credibility, our company's product coefficient of variation within the control of less than 5%, through the instrument test can be seen at a glance.

Simultaneous determination of silicon, manganese and phosphorus contents by three element analytical apparatus

Determination of silicon by three element analysis instrument: main method - ferrous reduction blue molybdenum blue photometric method

1, method summary

The sample is dissolved in dilute solution, oxidized by potassium permanganate dropping, and all silicate ions are converted into orthosilicate ions, which react with ammonium molybdate at a certain acidity to form silicon-molybdenum heteropoly acids. Then, in the presence of oxalic acid, ferrous silicon is reduced to silicon molybdenum blue, which is used for photometric determination of silicon.

2. Reagents

(1) dilute * (1+5) (2) Potassium Permanganate solution (2%) (3) alkaline ammonium molybdate solution.

A, ammonium molybdate solution (9%)

B, potassium carbonate solution (18%)

A, B two solution is combined in equal volume and stored in plastic bottles.

(4) oxalic acid solution (2.5%)

(5) * ferrous ammonium solution (1.5%)

Weigh * ferrous ammonium 15g, first dilute * (1 + 1) 1ml wet even ferrous salt, then dilute to 1L with water, dissolve and shake well reserve.

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