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Features & Details

💉 GAS-TIGHT PTFE PLUNGER	PTFE-tipped plunger eliminates fluid leakage and dead volume during gas and volatile liquid delivery.
🧪 BORO 3.3 BARREL	Precision precision-bore borosilicate glass barrel with permanently fired volumetric markings.
🎯 CHROMATOGRAPHY INJECTION	Engineered for GC/HPLC analytical sample introduction and micro-titration dispensing.
📏 10μL TO 100ML SIZES	Available from micro-liter Hamilton-style syringes up to large preparative laboratory injectors.

About this item

Product specification

Attribute

Product Specifications

Material & Design Features

Barrel & Needle Material

High-Quality Borosilicate Glass / Stainless Steel Capillary

Piston / Plunger Type

Gas-Tight PTFE-Tipped Plunger (Polytetrafluoroethylene)

Target Applications

Chromatography, GC/HPLC Injection, Precision Trace Dosing

Connection Types & Capacities

Needle Connection Types

Luer Lock (Ruhr): Threaded head for secure, interchangeable needles
Fixed Needle: Permanently attached for zero dead volume

Fixed Needle Outer Diameter (OD)

0.26mm / 0.31mm (Ultra-thin options specifically for septa piercing)

Available Capacity Range

Micro (10μL, 25μL, 50μL, 100μL) up to Bulk (100mL)

Laboratory Synthesis, Distillation & Volumetric Containment

Glass Microsyringe, Gas-Tight Borosilicate Lab Injector by Professional Series

Ensuring dependable accuracy during daily operations requires professional equipment engineered to withstand demanding laboratory and industrial environments. The Glass Microsyringe, Gas-Tight Borosilicate Lab Injector (10uL-100mL) by Xin Tester provides verified stability, user-friendly operation, and certified safety compliance across standard maintenance protocols. Discover our complete line of diagnostic and testing instruments in the Lab Pipette catalog.

Uniform Heavy-Wall Blown Glass

Engineered with consistent wall thickness to resist vacuum pressure gradients and mechanical bench knocks during daily agitation.

Permanent Ceramic Markings

Fired white/blue ceramic graduations and matte labeling spots resist aggressive wash detergents, acid baths, and ultrasonic cleaning.

💡

Glassware Insight: Borosilicate 3.3 Thermal Expansion

With a thermal expansion coefficient of 3.3×10⁻⁶/K, Class A borosilicate glassware prevents thermal strain fractures when transitioning between boiling baths and cold washes.

Ordering & Model Verification

Verify capacity, joint sizing, and closure type in the product options before completing your order in the right-side buy box.

Related technical collections:
Lab Glassware |
Lab Consumables

Use Cases

Chemical Synthesis High Precision Sample Preparation

FAQs

Q1: What is the difference between a Luer Lock and a Fixed Needle syringe?

A1: A Luer Lock (or Ruhr locking head) features a threaded connection that allows you to easily twist on and swap out different sizes of needles, making it highly versatile for various tasks. A Fixed Needle syringe has the stainless steel needle permanently cemented into the glass barrel. This design ensures absolute zero dead volume and eliminates the risk of the needle detaching under extreme high-pressure injections.

Q2: Why is a PTFE-tipped plunger necessary?

A2: A standard stainless steel plunger rubbing against a glass barrel does not create a perfect air seal and can cause liquid to blow back during injection. The PTFE (Teflon) tip provides a self-lubricating, chemically inert, and completely gas-tight seal, ensuring that 100% of your volatile sample is pushed out of the needle accurately.

Q3: Are these ultra-thin 0.26mm needles strong enough?

A3: Yes. The 0.26mm and 0.31mm outer diameter (OD) needles are manufactured from hardened stainless steel. They are specifically engineered to be thin enough to pierce through dense rubber septa in GC/HPLC machines smoothly without “coring” or damaging the rubber, extending the life of your analytical machine’s inlet.

Q4: Can I autoclave this glass microsyringe for sterile work?

A4: While the borosilicate glass barrel can withstand high temperatures, you must exercise caution. The PTFE plunger tip expands at a different rate than glass when heated, which can cause the glass barrel to crack if autoclaved while fully assembled. Always disassemble the plunger from the barrel before attempting any heat sterilization.

Glass Microsyringe, Gas-Tight Borosilicate Lab Injector (10uL-100mL) by Xin Tester

Price range: $28.13 through $129.38

Extra 5% Off with code: welcome5

SIZE

Clear

6–12 Month Warranty

Repair & Refund support available for most products.

Free Worldwide Shipping

Ships within 3 business days.

Taxes & Duties

Buyer responsible for local import fees.

24/7 After-Sales Support

Technical assistance & video guidance within 24h.