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Scientific and standardized storage of high-temperature resistant sample bottles is the key to ensuring their performance and lifespan
Date: 2025-11-17Read: 14
High temperature resistant sample bottles are widely used in laboratory scenarios such as high-temperature digestion, heat treatment, standard solution storage, and trace analysis, and can withstand temperatures above 300 ℃ or even 1000 ℃. However, if stored improperly, it can easily affect experimental results and even cause safety accidents due to collision rupture, contamination adsorption, seal failure, or stress aging. Scientific and standardized storage of high-temperature resistant sample bottles is the key to ensuring their performance and lifespan.
1、 Cleaning and drying are prerequisites for storage
Immediately clean with deionized water or appropriate solvents (such as dilute nitric acid, acetone) after use to avoid residue drying up;
High temperature drying (110-150 ℃) or natural air drying to ensure that there are no water stains or organic volatile compounds inside the bottle;
It is prohibited to clean high borosilicate glass bottles with ultrasonic waves for a long time to prevent the occurrence of microcracks.
2、 Sort in an orderly manner and avoid mixing
Store in different zones according to material (high borosilicate/quartz/ceramic), specifications (capacity, caliber), and purpose (digestion/storage/injection);
Bottles used for heavy metal or organic matter analysis should be individually labeled to avoid cross contamination;
Empty bottles and bottles containing samples are strictly managed separately to prevent misuse.
3、 Specialized containers and environmental control
Storage cabinet requirements:
Choose a clean drying cabinet with anti slip partitions to avoid stacking and squeezing;
The humidity inside the cabinet should be ≤ 50%, the temperature should be stable (15-25 ℃), and it should be kept away from heat sources, direct sunlight, and corrosive gases;
Bottle body protection:
Cover the bottle mouth with original PTFE lining or clean aluminum foil to prevent dust from falling in;
Quartz bottles should be stored away from light (brown cabinets or light blocking bags can be used) to reduce UV aging;
It is recommended to store valuable or trace analysis bottles in a locked dust-proof box.
4、 The placement method pays attention to details
Standing upright: All sample bottles must be stored vertically upright, and horizontal lying is prohibited to prevent deformation or rolling collision of the bottle mouth sealing ring;
Leave enough space: Leave a 1-2cm gap between bottles for easy access and to avoid collision with each other;
Heavy duty bottle bottom holder: For large capacity (≥ 100mL) or quartz bottles, a soft silicone pad can be added to the bottom to cushion vibrations.
5、 Regular inspection and rotation management
Check the bottle body quarterly for micro cracks, scratches, whitening (stress manifestation), or aging of the bottle cap;
For empty bottles stored for a long time, they need to be pickled again and activated by high-temperature baking before use;
Establish the principle of "first in, first out" to avoid sealing failure caused by long-term idle of some bottles.