As an effective metal anti-corrosion method, hot-dip galvanizing is widely used in the rapid development of high-voltage transmission, transportation, and communications, and the demand for hot-dip galvanized alloy is also increasing. In order to test the quality of hot-dip galvanized alloy, metal elements in hot-dip galvanized alloy should be detected strictly, Innova microwave digestion system SUPER-E is an advanced and efficient method for sample treatment to explore the most suitable digestion parameters.
Experimental method of microwave digestionof hot-dip galvanized alloy
Digestion
The sample of hot-dip galvanized alloy was accurately weighed at about 0.1g (accurate to 0.1mg) and placed at the bottom of the digestion tank. 6mL nitric acid and 2mL hydrochloric acid were added and stood for about 15min until there was no obvious reaction. The digestion tank was assembled and the experiment was carried out according to the following parameters:
| Stage | Temperature/℃ | Time/min | Power/W |
| 1 | 150 | 10 | 400 |
| 2 | 180 | 5 | 400 |
| 3 | 200 | 30 | 400 |
Results and discussion
The sample size of hot-dip galvanized alloy selected in the experiment was 0.1g, and the mixed acid system of nitric acid and hydrochloric acid was used for digestion experiment. The maximum experimental temperature was 200℃, and the temperature was kept for about 30 minutes before it could be completely dissolved.
With the features of safe operation, good flexibility, and high durability, the SUPER-E microwave digestion system offers a perfect solution for microwave digestion of hot-dip galvanized alloy, at the same time, its patented high-pressure digestion vessel design has greatly improved the digestion ability of tough samples.
Features of Innova SUPER-E microwave digestion system
1, The SUPER-E microwave digestion system patented fully-enclosed high-pressure digestion technology , it will not leak during the entire digestion process and can improve the digestion ability and recovery rate, which could ensure the accuracy of results.
2, The outer vessel made of high-strength aerospace composite fiber, with both mechanical strength and anti-corrosion ability. the overall coating of PFA completely wraps the composite fiber, The compressive strength is up to 70MPa (about 10,000psi), and the temperature resistance is as high as 600°C, ensuring the user's safe operation.
3, With nearly 30 years of experience, the Innova SUPER-E microwave digestion system has a safety bolt structure design to ensure that the digestion vessel is completely sealed and leak-free under normal working conditions, and the safety bolt will be automatically raised to trigger a pressure relief once overpressure, ensuring the safe operation.
4, The optical fiber and IR temperature measurement system provides precise temperature control while monitoring any abnormality, thereby ensuring accurate results and safety
5, The SUPER-E microwave digestion system an improved High-precision semiconductor pressure sensor, whose entire pressure transmission path has undergone special anti-corrosion treatment. In addition to accurate pressure measurement, the service life of the sensor has been greatly extended with improved reliability.
6, The SUPER-E microwave digestion system is equipped with the "cloud service" function so that data, methods, and other information can be stored and shared in the cloud, with the unlimited expansion of data storage under the premise of ensuring data security can be provided.
7, The SUPER-E microwave digestion system workstation can provide multiple functions and can be equipped with an organic solvent leakage sensor. Not only the complete pre-processing before microwave digestion and extraction but also capable of research of microwave-assisted synthesis.
Innova offers a large variety of lab equipment and has been committed to delivering the highest quality lab equipment to medical device companies and laboratories worldwide. To learn more, visit our website https://www.innovabiomed.com, or contact us via info@innobiomed.com.
