Year1
- 规格：
- 5ml~1000ml
- 使用温度：
- 200℃~230℃
- 压力：
- 5MPa
1. Introduction
Nanjing Ruinike
High-pressure digestion tank, also known as autoclave, pressure digestion tank, pressure dissolving bomb, stuffy tank, Digestion tank, PTFE high pressure tank. Our company's digestion tanks have solved the customers' problems of large quantity, high requirements, small size and difficulty in digestion during the digestion process.
Recently, the Hangzhou Municipal Market Supervision and Administration Bureau found that a brand of infant rice noodles produced by a company seriously exceeded the standard of lead during food sampling in the second quarter of this year. The manufacturer has publicly recalled related products on its official website.
As we all know, heavy metals are very harmful to the human body. Among them, lead can directly damage human brain cells, especially the nerves of fetuses, and can cause congenital shallow brain sulci, mental retardation, and dementia and brain death in the elderly. According to relevant toxicology literature, the acute toxicity D (half-lethal dose) of lead is m/. Long-term exposure to lead and its compounds can cause palpitations, irritability, and increased red blood cells in the blood. After lead invades the nervous system, insomnia, dreaminess, memory loss, and fatigue will occur, and then develop into mania, insomnia, confusion, coma, and finally death due to cerebrovascular hypoxia.
China promulgated the standard "B Hygiene Standard for Lead Limit in Food" in 2006, which limits the lead content in food. The standard "National Food Safety Standard Limits of Contaminants in Food", which has been revised many times, clearly requires that the limit of lead in infant formula foods is/.
The high-pressure digestion tank can be used in an oven with a temperature of ℃ and a pressure resistance of M.
The inner cup is made of polytetrafluoroethylene, with a low metal element blank value, lead and uranium content less than .b, no dissolution and precipitation, and extremely low background without added return materials. The outer tank is made of national standard stainless steel. Moreover, the inner cup can also be used with the acid-catching electric hot plate of our unit for later use in acid-catching and digestion. Such as: Taiyuan City, Shanxi Province D, Xinzhou City, Shanxi Province D, Zhongshan City, Guangdong Province D, Nanshan District, Shenzhen City, Guangdong Province D, Nanning City, Guangxi Province D, Beihai City, Guangxi Province D,
Food and Drug Inspection of Guangxi Zhuang Autonomous Region Institute, Beijing Institute of Botany, Chinese Academy of Sciences, Nanjing Soil Research Institute, Chinese Academy of Sciences, Shanghai Silicate Research Institute, Chinese Academy of Sciences, Nanjing University, Qingdao CET, Beijing CET, and Shanghai CET
Selected materials, no recycled materials, clean processing environment, optimized processing technology, ensuring extremely low background.
2. Working Principle
High-pressure digestion tank: The use of the high-temperature and high-pressure sealing system (strong acid or alkali) environment in the tank to achieve the purpose of rapid digestion of insoluble substances can greatly shorten the digestion process, and It can minimize the volatilization loss of the measured components and improve the accuracy of the measurement. It is a powerful assistant for digesting samples when measuring trace elements and trace elements.
It is widely used in sample preprocessing for chemical analysis methods such as spectrum mass spectrometry (M), atomic absorption and atomic fluorescence. In food, geology, metallurgy, commodity inspection, nuclear engineering and other systems, it can digest pesticide residues, medicines, food, rare earths, etc. , heavy metals such as b, r, Z,,, H, etc. in various organic matter in aquatic products. Sample pretreatment digests heavy metals, pesticide residues, food, sludge, rare earths, aquatic products, organic matter, etc.
The imported polytetrafluoroethylene inner cup exclusively developed by our company in China
3. Characteristics of the high-pressure digestion tank
Good sealing: the inner cup of the high-pressure digestion tank has a concave and convex tongue-and-groove design, and the inner cup lid The pointed bottom design facilitates sample collection after the experiment.
, Safety: Unique design, fine workmanship, there is a vent hole on the top of the cup, high safety factor. Even if the temperature is out of control, only the inner cup will be deformed, but the outer can will not be damaged.
It has high digestion efficiency and strong ability. It can digest many samples that are difficult to digest by traditional methods and has wide adaptability.
, The element blank value of the inner cup is low, which improves the accuracy and precision of analysis, and reduces the work intensity and environmental pollution
. The inner cup/outer tank is sequentially numbered to facilitate equal opportunity use.
, low cost and easy to use. The investment in the early stage and later stage is very small, the operation is easy, the operator requires almost no training before use, and the maintenance is simple.
The inner cup can be changed to imported polytetrafluoroethylene (the material of the inner tank of the microwave tank)
which is more resistant to penetration and deformation, lower background guarantee, and higher operating temperature.
The selected materials for the inner and outer tanks, years of production experience, recognition by many users, quality assurance, and trustworthy.
Material for the inner cup of the microwave digestion tank
Characteristics
The inner tank is made of high-purity experimental grade imported enhanced modified M material
Compared with: In addition to all the advantages, M also has some improved characteristics: it has lower background guarantee, better resistance to deformation, penetration resistance, and recoverability under high temperature and pressure. , the limit can even be reached
Special R&D and production technology ensures the smoothness of the extra-long tanks of special manufacturers (such as M). The inner tanks of microwave digestion instruments of various specifications from various manufacturers can be customized and used with the original microwave digestion equipment
, refined by special technology, optimized processing technology to ensure extremely low background value (blank value), the manufacturer's processing technology can also affect your experimental results
, the inner tank matching the imported microwave digestion instrument In particular, M's inner tank is widely used
. The processed inner cup can be used with its instruments, and the experimental data of the product is as good as that obtained from the original import
. We provide inner tanks that are used in various models of M microwave digestion instruments. All are made of M material, the lid is made of transparent material, the tube body and gasket are all made of M material, and all materials are available for customers to choose
. We are the only company that can customize the inner tank that comes standard with each manufacturer's instruments. At the same time, we promise , product quality is consistent with the original factory and has the highest cost performance.
Product name
Specifications (m)
Material
Working temperature ℃
Pressure
High pressure digestion tank
Experimental grade high purity,
National standard stainless steel
The high-pressure digestion method is recognized as a standard method by relevant departments in my country, such as,,,,,,,/, etc. The United States also stipulates that this method is the standard decomposition method of samples for the determination of elements such as d, H, b, and Z.
Advantages and disadvantages of three commonly used methods for sample pretreatment
Advantages of high-pressure digestion method
: safety, low initial investment, simple equipment, easy operation, small amount of sample and reagents, low blank value, avoid Contamination, sample processing is safe and thorough, with high accuracy, and can process samples in large batches.
Limitations
: The sample processing cycle is slightly longer, the temperature and pressure cannot be controlled, and the appearance is simple.
Advantages of room temperature digestion method
: low investment, simple equipment, easy operation, large reagent consumption, average accuracy, short working cycle, and can process samples in large batches.
Limitations
: Easy to stain, pollute the environment, harmful to the operator's health, less precise, requires more reagents, and has limitations for some insoluble samples.
Advantages of microwave digestion method
: safe, temperature and pressure controllable, high efficiency in small batches, less sample and reagent consumption, low blank value, avoidance of contamination, high accuracy, and high degree of intelligence.
Limitations
: Large investment in the early and late stages, high requirements on operators, limitations for certain samples, large loss of r and b, incomplete digestion, low working temperature, and cannot have the highest temperature and pressure at the same time .
Nanjing Ruinike Technology Development Co., Ltd.
Contact person Su Yang QQ
Mobile phone number
Fax email: @qq
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