Welcome to Qinsun Instruments Co., Limited.
2023-09-15 0 Views

Analytical cleaning and maintenance of the microwave digestion tank

A microwave digestion tank is a reactor designed for the synthesis of chemical substances under specific temperature and pressure conditions. KIATextile Testing Instruments, Testing Equipment Manufacturer


Currently, most of the microwave digestion tanks on the market use the dual control mode of temperature and pressure, and the mode of controlling temperature or pressure independently is gradually being phased out by the market. KIATextile Testing Instruments, Testing Equipment Manufacturer


The higher the temperature, the higher the reaction rate of the sample and the degree of digestion;KIATextile Testing Instruments, Testing Equipment Manufacturer


The higher the pressure, the higher the pressure resistance requirements of the digestion tank and the higher the relative risk. KIATextile Testing Instruments, Testing Equipment Manufacturer


Therefore, the authenticity and accuracy of the data read from the temperature sensor and pressure sensor is very important. KIATextile Testing Instruments, Testing Equipment Manufacturer


Temperature sensors and pressure sensors are important and fundamental configurations of microwave digestion tanks.KIATextile Testing Instruments, Testing Equipment Manufacturer


To attract customers' attention, eiSome manufacturers have introduced new concepts for non-contact temperature measurement, such as B. Infrared temperature measurement and total tank temperature measurement. KIATextile Testing Instruments, Testing Equipment Manufacturer


Infrared temperature measurement is based on the principle that infrared rays can only penetrate transparent substances to determine the temperature of the sample digestion solution. KIATextile Testing Instruments, Testing Equipment Manufacturer


Therefore, the temperature of the digestion solution can be accurately measured only when the inner tank of the digestion vessel is made of transparent material. KIATextile Testing Instruments, Testing Equipment Manufacturer


When making a purchase, consumers can use their own knowledge or consult experts in the industry to think rationally and make decisions. KIATextile Testing Instruments, Testing Equipment Manufacturer


Traditional cleaning method for microwave digestion tanks: This method is suitable for cleaning most tanks after digestion. The steps are as follows: KIATextile Testing Instruments, Testing Equipment Manufacturer


1. Clean the microwave digestion tank with hot cleaning solution:KIATextile Testing Instruments, Testing Equipment Manufacturer


Use oneSponge or absorbent cotton to scrub the visible dirt in the microwave digestion tank. Avoid using hard brushes to clean the microwave digestion tank to avoid scratching the microwave digestion tank, which will make it easier to pick up samples and shorten the life of the tank. KIATextile Testing Instruments, Testing Equipment Manufacturer


2. Rinse the microwave digestion tank alternately with tap water and deionized water, dry and place in a clean and dry place for later use. KIATextile Testing Instruments, Testing Equipment Manufacturer


3. The lid part does not need to be cleaned every time the sample is digested. It only needs to be cleaned once a day. KIATextile Testing Instruments, Testing Equipment Manufacturer


4. It is forbidden to use reagents to clean the jacket. If there is dirt or drops of acid, wipe them off with a damp cloth. KIATextile Testing Instruments, Testing Equipment Manufacturer


5. If there are organic substances in the dirt that are difficult to clean with the cleaning solution,you may need to use solvents such as acetone and xylene. When using such solvents to clean the microwave digestion tank, be sure to rinse off the remaining solvent with water. KIATextile Testing Instruments, Testing Equipment Manufacturer


Clean the sample solution cup in time after dissolving the sample because the material of the sample solution cup is polytetrafluoroethylene.KIATextile Testing Instruments, Testing Equipment Manufacturer


So it can be soaked with various inorganic acids and cleaned, the sample residue can be washed with a soft brush, and it can be cleaned with an ultrasonic cleaner. KIATextile Testing Instruments, Testing Equipment Manufacturer


After acid washing, rinse with tap water, wash with pure water, and dry for later use. KIATextile Testing Instruments, Testing Equipment Manufacturer


The piston seal cup can be soaked in dilute acid and rinsed with water. KIATextile Testing Instruments, Testing Equipment Manufacturer


All parts of the digester should be wiped dry with soft paper and a dry cloth before use. KIATextile Testing Instruments, Testing Equipment Manufacturer


SunIf acid mist is emitted during operation, stop the machine immediately, remove all parts of the digestion tank after the pressure has dropped, and thoroughly clean it with water (organic solvents such as acetone and ethanol are prohibited). KIATextile Testing Instruments, Testing Equipment Manufacturer


Then dry it in the drying oven at 50 °C before use. KIATextile Testing Instruments, Testing Equipment Manufacturer

KIATextile Testing Instruments, Testing Equipment Manufacturer