Year1
- 规格：
- 5ml~1000ml
- 使用温度：
- 200℃~230℃
- 压力：
- 5MPa
1. Introduction
Nanjing Ruinike Technology
Special high-pressure digestion tank for detection of pesticide residues in food and agricultural products, also known as sample dissolver, pressure Dissolving bomb, autoclave, 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 Ministry of Agriculture and the National Health and Family Planning Commission jointly issued the national food safety standard "Maximum Residue Limits of Pesticides in Food" (B). The maximum residue limits of pesticides in food in my country will be increased from the current items to new items, and new items will be added.
The newly released "Maximum Residue Limits of Pesticides in Food" (B) has been significantly improved in terms of scientificity, pertinence and practicality, and strives to use the most stringent standards to provide the most stringent supervision and the most stringent regulations. Punishment and the most serious accountability provide legal technical basis to ensure the safety on the tip of the people's tongue. The new standard stipulates the limit indicators for certain pesticides in certain (categories) of food. Compared with the "Maximum Residue Limits of Pesticides in Foods" (B) promulgated and implemented in 2017, the new standards have newly added limit indicators for certain pesticides, species (categories) and items. This newly released standard has the following characteristics: First, it expands the types of food and agricultural products. Second, it covers commonly used pesticide varieties in agricultural production. The third is to focus on increasing the limit standards for fresh agricultural products such as vegetables and fruits. Fourth, the new standards are basically in line with international standards.
Therefore, our company launched a high-pressure digestion tank to solve the problem of sample digestion. Moreover, the inner cup can also be used with the acid catching board of our unit
for acid catching and digestion in the later stage, such as: D in Taiyuan City, Shanxi Province, D in Xinzhou City, Shanxi Province, D in Zhongshan City, Guangdong Province, and Nanshan District, Shenzhen City, Guangdong Province D. Nanning City, Guangxi Province D. Beihai City, Guangxi Province D.
Guangxi Zhuang Autonomous Region Food and Drug Inspection Institute, Beijing Institute of Botany, Chinese Academy of Sciences, Nanjing Soil Research Institute, Chinese Academy of Sciences, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Nanjing University, Qingdao Hua The feedback results are very good, such as the test, Beijing Ctest, and Shanghai Ctest
.
The high-pressure digestion tank is specially used for detecting pesticide residues in food and agricultural products. The temperature can reach
℃ in the oven and it can withstand pressure M.
The inner cup is made of high-purity experimental grade polytetrafluoroethylene material, with low metal element blank value, lead and uranium content less than . National standard stainless steel.
Selected materials, no recycled materials, clean processing environment, optimized processing technology, ensuring extremely low background.
2. Features 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 has a pointed bottom design to facilitate 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
(
Microwave tank inner tank material)
, which is more resistant to penetration and deformation, lower background guarantee, higher operating temperature.
The selected materials for the inner and outer tanks, years of production experience, recognition by many users, quality assurance, and trustworthy.
Product name
Specifications (m)
Material
Working temperature ℃
Pressure
High pressure digestion tank
Experimental grade high purity,
National standard stainless steel
3. Working Principle
High-pressure digestion tank: The environment of the high-temperature and high-pressure sealing system (strong acid or strong alkali) in the tank is used to achieve the purpose of quickly digesting insoluble substances. It greatly shortens the digestion process, minimizes the volatilization loss of the measured components, and improves 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.
Our company’s domestically exclusively developed imported polytetrafluoroethylene inner cup
Characteristics
The inner tank is made of high-purity experimental grade imported enhanced modified M material
Compared with: In addition to all the advantages of M, it also has some improved characteristics: lower background guarantee, better resistance to deformation, penetration resistance, and recoverability under high temperature and pressure, and its appearance is closer to jade white
. The maximum operating temperature is d, and the limit can even reach
. 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 manufacturers and specifications can be customized and matched with the original factory. The microwave digestion instrument is used
. It is processed by a special process to optimize the processing technology to ensure an extremely low background value (blank value). The manufacturer's processing technology can also affect your experimental results
. For imported microwaves The inner tank matching the digestion instrument is especially the M inner tank which is widely used
. The processed inner cup can be used with other instruments. The experimental data of the product is as good as that obtained from the original import
. Various models of matching M microwave digestion are provided. The inner tank used by the instrument is all 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
The only company that can customize the standard equipment of each manufacturer Inner tank, at the same time we promise that the product quality is consistent with the original factory and has the highest cost performance.
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 amount of reagents, 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
WhatsApp
