1. Chemical inertness: Borosilicate glass is stable to most chemical reagents and avoids sample contamination.

2. High temperature and high pressure resistance: capable of withstanding high temperature sterilization and low temperature storage.

3. Low solubility: Glass material has very little solubility, ensuring sample purity.

4. Transparency: Transparent bottles facilitate the observation of sample color, precipitation, or layering phenomena.

5. Sealing: The screw or bayonet design ensures that the sample does not leak during transportation and storage.

Glass injection bottleKey points for purchasing:

1. Material selection:

Conventional analysis: Transparent borosilicate glass.

Photo sensitive sample: Brown borosilicate glass.

Special chemical environment:PTFE or PP material (compatibility needs to be confirmed).

2. Specification matching:

Select the capacity according to the requirements of the analytical instrument (such asHPLC typically uses 1.5mL or 2mL bottles.

Confirm if the bottle mouth type is compatible with the sampler or sealing cap.

3. Sealing requirements:

Long term storage or transportation: Choose bayonet or screw bottle, and use high-quality sealing gasket.

Automated sampling: prioritize screw on bottles for easy mechanical operation.

4. Preprocessing requirements:

Sterilization required: Confirm that the glass material can withstand high temperature and high pressure.

Trace analysis: Choose round bottomed bottles to reduce residue.

5. Cost and batch size:

Bulk procurement can reduce costs, but it requires a balance between quality and price.

Consider the matching cost of consumables such as gaskets and aluminum covers.