Vial Inserts
Vial inserts are small inner containers placed inside autosampler vials to allow accurate and efficient handling of low-volume samples. Made from glass or polypropylene (PP), these inserts help reduce sample loss, improve injection accuracy, and are ideal for limited or precious samples.
Available in flat bottom, conical bottom, and polyspring designs, vial inserts are commonly used in HPLC, GC, and LC-MS applications across pharmaceutical, analytical, and environmental labs.
Vial Inserts – FAQs
Q1. What are Vial Inserts?
Vial inserts are small glass or plastic liners placed inside chromatography vials to reduce sample volume, improve recovery, and ensure accurate analysis in HPLC, GC, and LC-MS applications. They are widely used in autosampler vials for handling low-volume samples.
Q2. Why are Vial Inserts used in chromatography?
Vial inserts are used because they:
- Allow small sample volumes to be analyzed.
- Improve sample recovery and accuracy.
- Protect samples from evaporation.
- Ensure the autosampler needle reaches the liquid.
Q3. What are the types of Vial Inserts?
Common vial insert types include:
- Conical Inserts – tapered bottom for maximum sample recovery.
- Flat Bottom Inserts – stable base, suitable for robotic autosamplers.
- Glass Inserts – chemically resistant, used for sensitive samples.
- Plastic Inserts (Polypropylene) – cost-effective and shatterproof.
- With/Without Plastic Spring – keeps insert centered in vial.
Q4. What sizes are Vial Inserts available in?
Vial inserts are typically available in volumes of:
- 100 µL
- 200 µL
- 300 µL
- 500 µL (depending on vial compatibility)
Q5. What materials are Vial Inserts made of?
- Borosilicate Glass Inserts – ideal for chemical resistance and high-purity samples.
- Plastic Inserts (Polypropylene or Polyethylene) – economical and durable, but less resistant to organic solvents.
Q6. How to choose the right Vial Insert?
- Select based on sample volume (low-volume = conical insert).
- Consider instrument compatibility (HPLC, GC autosampler).
- Choose glass inserts for sensitive/organic solvents.
- Choose plastic inserts for general or routine use.
Q7. What is the difference between Conical and Flat Bottom Inserts?
- Conical Inserts – best for very small sample recovery, as liquid collects at the tip.
- Flat Bottom Inserts – stable, ideal for robotic autosamplers and automated handling.
Q8. Where to buy high-quality Vial Inserts in India?
You can buy glass vial inserts, plastic vial inserts, conical inserts, and flat bottom inserts from trusted manufacturers, suppliers, and exporters in India. For premium-quality vial inserts, Simson Chemtech is a reliable manufacturer and supplier in India.
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