A simple understanding of a computer element analyzer is a semi-automatic or automated instrument that can detect a certain element content. Is a multi-element analyzer that can detect silicon, molybdenum, titanium, rare earth, magnesium, vanadium, manganese in a variety of materials such as ordinary carbon steel, high, medium and low alloy steel, stainless steel, raw cast iron, ductile cast iron, alloy cast iron, ferromanganese and other materials , Phosphorus, copper, nickel, chromium, aluminum, tungsten, niobium and other elements.
Computer element analyzer is a precision instrument. What should users pay attention to when using it?
1. When measuring liquid reagents with a measuring cylinder in an elemental analyzer laboratory, use a left-handed measuring cylinder, the bottle with a thumb indicating the required volume scale, and a right-handed chemical reagent bottle, taking care to touch the chemical reagent bottle into the measuring cylinder. This prevents droplets from flowing down the outer wall of the reagent bottle. Then place the reagent bottle upright, close the stopper tightly, and place it back with the label outward. When reading the scale, the line of sight and the liquid surface should be on the same level. If too much liquid reagent is poured out carefully, you can only discard or pour it into a designated container for use by others.
2. When dispensing chemical reagents, solid reagents should be packed in wide-mouth bottles that are easy to pick up, and liquid reagents should be stored in small-mouth bottles or drip bottles that are easy to pour. See reagents that are easily decomposed, such as silver nitrate, etc. It should be packed in a brown reagent bottle and stored in a dark place; a rubber stopper should be used for reagent bottles containing lye.
3. General solid chemical reagents can be weighed on clean waxed paper. Corrosive, strong oxidizing or deliquescent solid reagents should be weighed in off-duty vessels. Filter paper should never be used for weighing. If you take too much during weighing, you should pour the extra medicine into the designated container for others to use, and never return the reagent bottle.
4. Familiar with the properties of chemical reagents of commonly used elemental analyzers, such as the concentration of commercially available acids and bases, the solubility of reagents, the boiling point of organic solvents, the toxicity and chemical properties of reagents, etc.
5. Apply a clean medicine spoon to the solid chemical reagent. If the reagent is agglomerated, use a clean and dry coarse glass rod or a special stainless steel medicine knife to crush it before taking it. After removing the chemical reagents, the stoppers should be capped immediately to prevent the wrong stoppers from contaminating the reagents. Used spoons and glass rods must be washed in time.
6. Before taking the chemical reagent, you should read the label clearly. When removed, the top of the stopper is flat. The stopper can be inverted on the analysis table. If the top of the stopper is not flat, the stopper can be clamped or placed on a clean and dry watch glass with the index and middle fingers. It is strictly prohibited to place the stopper on the analysis table.
7. Use a dropper to drop the reagent into the test tube with the element analyzer laboratory. Hold the test tube vertically with your left hand, grip the rubber tip of the dropper with your thumb and forefinger, and clamp the rubber tip of the dropper with your middle finger and ring finger to get off work. At the connection of the tube, take the dropper vertically or obliquely, and place it directly above the test tube mouth. The dropper mouth is about 2-3mm away from the test tube, and then squeeze the rubber tip to make the reagent drip into the test tube. When entering the test tube, do not touch the inner wall of the test tube, otherwise, the dropper mouth may easily be stained with other solutions on the inner wall of the test tube. If the dropper is returned to the original solution bottle, the reagent in the dropper bottle will be contaminated.
8. All chemical reagent bottles should be labeled with the name, concentration, preparation date, and a thin layer of wax on the outside of the label. In the work, pay attention to protect the label of the reagent bottle to make it complete. If it is lost, it should be subsidized in time.
9. When taking out a small amount of reagent from the dropper bottle, first lift the dropper to make the nozzle away from the liquid surface, pinch the rubber head on the top of the dropper with your finger to drive out the air in the dropper, and then extend the dropper into In the dropper bottle, put your finger on the watch, inhale the reagent, then lift the dropper to drip the reagent into a test tube or other container.