Full capacity recycling injection bottles are commonly used in laboratories for collecting, storing, and analyzing samples. Cleaning the injection bottle is crucial to ensure the accuracy of experimental results and avoid cross contamination. The following is a detailed method for cleaning fully recovered sample bottles:
1. Preparation before cleaning
Wear protective equipment: During the cleaning process, it is necessary to wear appropriate protective equipment such as gloves, goggles, and lab coats.
Check for residues in the bottle: Check for any residual samples or solvents in the injection bottle to ensure that they are not missed during cleaning.
2. Cleaning steps
(1) Preliminary flushing
Discard the residue inside the bottle: First, discard the sample or residue inside the bottle. If there are substances that are difficult to pour out, gently tap or tilt the bottle mouth.
Preliminary rinsing: Rinse the bottle with deionized water or distilled water to remove most of the residue inside the bottle. It is recommended to rinse with running water to ensure that the residue is removed.
(2) Cleaning with detergent
Use cleaning agents: Choose suitable cleaning agents for bottle cleaning, commonly used cleaning agents include neutral cleaning agents or specialized glass bottle cleaning agents. If there is grease or adhesive in the injection bottle, solvents containing alcohol or acetic acid can be used.
Soaking and cleaning: Soak the sample bottle in a solution containing a cleaning agent for 10-15 minutes, especially when there is a lot of sediment.
Brushing the bottle wall: Use a soft bristled brush or cleaning ball to gently scrub the bottle wall, especially the areas where dirt is easily accumulated such as the bottle mouth and bottom. Avoid using hard objects such as wire brushes to avoid scratching the bottle wall.
(3) Rinse multiple times
Rinse off the cleaning agent: Rinse off the cleaning agent with a large amount of deionized water or distilled water. Usually rinse 3-5 times to ensure complete removal of cleaning agent residue.
Pay attention to the washing sequence: ensure that the bottle mouth, bottom, and wall have been thoroughly washed to avoid any residual cleaning agents or contaminants.
(4) Special cleaning (if necessary)
Organic solvent cleaning: If the sample is organic or contains oil, appropriate organic solvents (such as ethanol, acetone, etc.) can be used for further cleaning. At this point, special attention should be paid to the compatibility between the solvent and the sample.
Acidic cleaning: For some difficult to remove stains (such as mineral deposits), diluted acidic solutions (such as dilute nitric acid or dilute hydrochloric acid) can be used for cleaning.
(5) Rinse with clean water
Deionized water or distilled water: After cleaning, rinse repeatedly with deionized water or distilled water to ensure that all residual cleaning agents, solvents, etc. are removed. Rinse at least 3-5 times.
Drainage: After rinsing, ensure that the water in the sample bottle is completely drained. You can turn it upside down to dry, or gently wipe it with a clean, fiber free cloth.
3. Drying and Storage
Natural drying: Place the cleaned bottle in a clean environment and dry it upside down. You can place it on a clean tissue, ensuring that the bottle mouth is facing downwards.
Drying: If a higher standard of drying is required, an oven can be used for low-temperature drying, usually at a temperature not exceeding 50 ° C.
Be careful to avoid dust pollution: During the drying process, avoid exposing the bottle to dust or other sources of air pollution.
4. Inspection
Appearance inspection: After cleaning, check whether the appearance of the bottle is clean, without residue or water stains.
Internal inspection: Check whether the bottle is completely clean and whether there are any visible stains or deposits through a light source. If it needs to be cleaned again.
5. Maintenance and upkeep
Regular cleaning: Cleaning the injection bottle is not only necessary before use, but also requires comprehensive maintenance on a regular basis. Especially when not used for a long time, regular inspection and cleaning should be carried out.
Avoid using strong acids or strong alkalis: Avoid using strong acids or strong alkaline solutions for cleaning unless specific pollutants are targeted.
By following the above steps, it is possible to effectively clean the volumetric full recovery injection bottle, ensuring that it is free from contamination and residue, and ensuring the accuracy of the experimental results.