Micro-Volume Inserts 150uL 250uL 300uL

Description

Feature

Specification

Product

FAQ

Packing and Delivery

Overview

These premium micro-volume inserts are specialized for high-performance liquid chromatography (HPLC) and gas chromatography (GC) applications involving trace or highly limited samples. Offering standard capacities of 150uL, 250uL, and 300uL, they efficiently convert standard 2mL autosampler vials into micro-sampling vessels. Fabricated from ultra-pure USP Type 1 Class A borosilicate glass or high-grade chemical-resistant polypropylene (PP), these inserts ensure maximum chemical inertness, minimizing analyte adsorption and cross-contamination during highly sensitive analytical runs.

By optimizing the physical internal taper, they maintain standard autosampler needle-depth configurations while restricting dead volume to a bare minimum. The precise outer diameter tolerances guarantee that each insert aligns perfectly centered inside the host vial, eliminating the operational risks of misaligned injections, bent needles, or instrument downtime across all primary autosampler brands.

Features

Core Feature Highlight: Advanced structural stability combined with high material purity ensures maximum sample extraction efficiency while protecting delicate autosampler hardware.

Integrated Polyspring Shock Absorption: Features an innovative polymer bottom spring (Polyspring designs) that acts as a vertical buffer, absorbing physical needle impact and preventing needle breakage during deep bottom-draws.

Minimized Sample Dead Volume: The sharp conical/tapered bottom geometry forces target analytes into a concentrated point, allowing the autosampler needle to draw down to the last few microliters of critical samples.

Broad Modular Compatibility: Flawlessly engineered to fit 8-425 standard opening vials (5mm OD inserts) as well as 9mm, 10-425, and 11mm snap/crimp wide-opening chromatography vials (6mm OD inserts).

Strict Dimensional Consistency: Manufactured via fully automated molding processes to keep length, flange diameter, and straightness within micrometric tolerances, ensuring zero jammed vials in high-throughput loops.

Ultra-Inert Material Selection: Available in both USP Type 1 borosilicate glass for universal solvent compatibility and premium polypropylene (PP) for aqueous or ion chromatography where HF acid resistance is vital.

Related products

Assorted Micro Vials including Base Bonded and Shell Vials for HPLC

Micro-Vials and Shell Vials Series: Integrated Insert, Base Bonded and PP

Specification

Strategic Sourcing & Technical Selection Guide

Part No.	Volume	Insert Base Design & Material	Suitable for Vial Types	Opening
IP150	150 uL	Polypropylene (PP) / Conical with Polyspring	8-425 Screw Top Vials	5mm
IV150	150 uL	USP Type 1 Glass / Conical with Polyspring	8-425 Screw Top Vials	5mm
I250	250 uL	USP Type 1 Glass / Flat Bottom Straight Tube	8-425 Screw Top Vials	5mm
IP250	250 uL	Polypropylene (PP) / Conical with Polyspring	9mm Screw / 10-425 Screw / 11mm Snap / 11mm Crimp	6mm
IV250	250 uL	USP Type 1 Glass / Conical with Polyspring	9mm Screw / 10-425 Screw / 11mm Snap / 11mm Crimp	6mm
I300	300 uL	USP Type 1 Glass / Flat Bottom Straight Tube	9mm Screw / 10-425 Screw / 11mm Snap / 11mm Crimp	6mm

FAQ

Technical clarifications regarding micro-volume insert material selections, vial physical dimensions, and operational safeguards during autosampler processing.

Glass vs. PP micro-inserts: How do I choose for my chromatography analysis?

Choose Glass (IV150/IV250) for universal organic solvent resistance and to avoid plasticizer contamination. Choose PP (IP150/IP250) for aqueous samples, ion chromatography, or when working with acids like HF that etch glass.

What is the practical benefit of the polymer Polyspring on the insert bottom?

The Polyspring acts as a physical shock absorber. When the autosampler needle hits the bottom to maximize sample recovery, the spring flexes to prevent needle bending, blunting, or system errors.

Can I use IP150/IV150/I250 inserts inside 9mm or 11mm opening vials?

No. These models have a 5mm outer diameter tailored for narrow-opening 8-425 vials. Placing them in 9mm or 11mm wide-opening vials causes them to tilt, leading to missed injections or bent needles.

What is the difference between flat bottom (I250/I300) and conical inserts regarding dead volume?

Conical inserts concentrate samples into a sharp point, reducing dead volume to ＜5ul for trace samples. Flat-bottom inserts are budget-friendly but leave more residual sample, suitable when sample volume is sufficient.

Will these micro-volume inserts affect the sealing efficiency of my vial caps?

No. Our inserts are precision-machined to standard heights (29mm and 31mm). When placed inside, the top flange rests flush with or slightly below the vial lip, ensuring the septa compresses evenly and stays airtight.

GC headspace vial carousel cleaning and reuse workflow

Jul

Headspace Vial Cleaning & Reuse: Workflow, Cost‑Risk Comparison of Disposable vs. Reusable Vials

This paper illustrates a typical GC‑HS sample vial carousel and details a multi-step cleaning and desorption-preconditioning protocol for high-borosilicate headspace vials. It further analyzes disposable vs. reusable vial models in terms of cost, contamination risk, and operational efficiency, assisting labs in designing an environmentally friendly, reliable, and efficient SOP for sample preparation.

2ml clear and amber autosampler vials manufactuer and supplier

Dec

Packing and Delivery

Packing

Each vial is individually protected in shrink-wrapped trays, 100–200 pcs per inner box, then packed into corrugated export cartons.

Labeling

Each carton includes lot number and product information for traceability.

Delivery Time

Normally 7–15 working days after order confirmation.

Shipping Options

Air freight, sea freight, or express (DHL/UPS/FedEx) available upon request.

Storage Condition

Store in a clean, dry environment at room temperature.

Company Profile

Zhejiang Aijiren Technology Co., Ltd.

A dedicated original manufacturer of chromatography and laboratory consumables.

10,000+ m² modern facility with Class 100,000 cleanrooms
Automated production lines and rigorous in-house quality control
High-volume capacity, fast lead times, and reliable global supply
OEM/ODM customization with full batch traceability
Trusted by laboratories and analytical instrument brands worldwide

VR Showroom

OEM/ODM Custom Laboratory Consumables

Aijiren turns your customized requirements—size, material, color, logo, or packaging—into reliable, ready-to-use products.

OEM/ODM

Precise manufacturing based on your drawings and specifications, with one-stop development support

Confidentiality

Full protection of all commercial information, molds, and designs

Stable Supply

Automated production ensures consistent quality and fast lead time

Technical Support

Dedicated team ensures smooth communication and hassle-free delivery

FAQ From Customers (VR Display)

What certificates do you have?

Aijiren is certified to ISO 9001:2015 by SGS, ensuring controlled manufacturing processes and stable, fully traceable product quality.

With continuous investment in R&D and multiple independent patents, we deliver high-performance and reliable consumables to laboratories worldwide.

Some of the certificates of Aijiren are displayed

What’s the MOQ? Do you accept small orders?

Aijiren supports both standard and small batch orders. While MOQ varies by product type, we are happy to accommodate smaller quantities for trial, testing, or special projects. Please contact us for specific requirements. aijiren Quality control

Is the quality guaranteed?

All Aijiren products undergo random sampling and multiple in-house quality tests. Each batch is fully traceable, ensuring stable and reliable performance for your laboratory work.

What kind of after-sales support does Aijiren provide?

Aijiren provides practical after-sales support:

● Returns & replacements: Any product affecting use or sales can be returned or replaced.

● Technical support: Assistance with product use and troubleshooting.

● Order tracking & follow-up: We monitor shipments and follow up to ensure timely delivery.

● Dedicated contact: Aijiren provides a direct contact for after-sales inquiries.

This ensures your laboratory work runs smoothly with minimal disruption.

How long will it take for orders?

The delivery time depends on the order quantity and whether customization is required:

In-stock products: shipped within 3–7 days after payment
Standard bulk orders: shipped within 2–4 weeks
OEM/ODM customized products: shipped within 3–5 weeks (depending on mold, logo, color, packaging, etc.)
Aijiren has automated production lines and a 100,000-class cleanroom, ensuring stable lead times and reliable supply.