250 µL, Gastight Waters Manual HPLC Syringe, Removable Needle (RN), PN: 84989

25s gauge, 1.97 inches (50.0 mm), Point Style 3: Blunt

Part # 84989

This 1800 series Gastight #1825 syringe features a blue holder attached to the syringe that prevents heat transfer, improves accuracy, and stops plunger blowouts. This 250 µL syringe (PN: 84989) supports small plungers, preventing bending during injection. Compatible with Large Hub RN needles.

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Minimum: 1, Maximum: 1000

250 µL, Gastight Waters Manual HPLC Syringe, Removable Needle (RN), PN: 84989 Details

Hamilton's 1800 series, Gastight # 1825 Removable Needle (RN) Waters Manual HPLC Syringe is a reinforced plunger version of the 1700 series syringe. This syringe also features a blue Syringe Holder attached to the flange. This unique component safeguards against any heat transfer from barrel, ensuring accurate dispensing. The reinforced plunger provides crucial support to delicate small-volume plungers, preventing bending and maintaining injection integrity. Commonly used with Waters U6K valve for manual HPLC injections.

Gastight Syringe with a Syringe Holder Design

  • Integrated blue holder on the flange prevents heat transfer to the syringe barrel.
  • Prevents dispense inaccuracies from sample heating.

Reinforced Plunger Style

  • Engineered to safeguard delicate plungers in small volume syringes, preventing bending of their fine plunger wires.
  • Increases the overall durability of the syringe, providing a reliable instrument for repeated use.
Scientific Citations

  • Gastight Syringes Ensures Integrity of Environment Sensitive Catalysts (or Samples)

    For such, we utilize highly reactive catalysts that are in many cases air and moisture-sensitive. Gastight Hamilton syringes are essential to maintaining the catalyst integrity and, therefore, ensuring reproducible and trustable results.

    Stella A. Gonsales
    Assistant Professor, University of Chemistry and Technology Prague | Department of Polymers

250 µL, Gastight Waters Manual HPLC Syringe, Removable Needle (RN), PN: 84989 Specifications

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Volume 250 µL
Syringe Type Gastight
Syringe Series 1800
Termination Removable Needle (RN)
Needle Large RN
Gauge 25s gauge
Point Style 3: Blunt
Needle Length 1.97 inches (50.0 mm)
Plunger Style Reinforced Plunger
Fluid Path SST, Borosilicate glass, PTFE
Autoclavable Yes
Gas Sterilizable Yes
Pressure 500 psig (34.5 bar)
Maximum Operating Temperature 80°C / 176°F
Minimum Operating Temperature 10°C / 50°F
Barrel Inner Diameter 0.091 inches (2.30 mm)
Barrel Outer Diameter 0.305 inches (7.75 mm)
Needle Inner Diameter 0.007 inches (0.18 mm)
Needle Outer Diameter 0.02 inches (0.508 mm)
Std Needle Dead Volume 0.91 µL
Sales Quantity 1 syringe per pack
Syringe Model Number 1825
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