700 Series

Hamilton 700 Series Syringes

Original fitted microliter syringes for precise liquid handling, smooth plunger control, and reliable chromatography injections.

Hamilton 700 Series Syringes

Hamilton 700 Series Microliter Syringes are precision liquid-handling syringes designed for accurate, repeatable low-volume dispensing in chromatography and analytical laboratory workflows. Chrom Tech supplies Hamilton 700 Series syringes for laboratories that need dependable manual injection performance across routine HPLC, GC, microinjection, titration, and related small-volume liquid applications.

The Hamilton 700 Series is the original Hamilton Microliter syringe. The series uses a stainless-steel plunger individually fitted to its matching glass barrel, creating a tight liquid seal and the smooth “velvet feel” associated with this platform. This fitted construction is a key reason the 700 Series remains a widely used standard for precision liquid dispensing.

The Original Fitted Microliter Syringe

The 700 Series is built around a fitted syringe design, where the stainless-steel plunger and glass barrel are precision matched to one another. This close fit supports a liquid-tight seal without relying on wearing sealing parts, helping the syringe deliver strong day-to-day precision for homogeneous liquid samples. The plunger and barrel are not interchangeable.

Reliable Performance for Routine Lab Use

The 700 Series is well suited for everyday lab use in applications such as HPLC, microinjection, and titration. The family also supports manual and automated GC and HPLC injections, making it a versatile option for laboratories that need one syringe platform to support multiple routine analytical workflows.

Designed for Homogeneous Liquid Samples

Because the 700 Series uses a fitted plunger-and-barrel construction, it is best suited for homogeneous liquid samples that are not prone to precipitation, crystallization, or residue buildup. In clean liquid applications, this design can provide long service life and very consistent manual handling performance. Samples that leave residue or contain particulates typically require more careful syringe cleaning and maintenance to preserve fit and accuracy.

Broad Volume Range for Analytical Flexibility

The 700 Series covers core models ranging from 5 µL to 500 µL, allowing laboratories to choose a syringe size that matches the required sample volume and injection style. This broad usable range helps make the 700 Series a practical platform for both very small manual injections and larger-volume analytical dispensing tasks.

Configurable for Application-Specific Use

The 700 Series can be configured through multiple sizes, terminations, and needle selections. This allows laboratories to adapt the syringe to different injection ports, sample handling methods, and workflow preferences while maintaining the fitted precision the series is known for.

Smooth Plunger Feel and Precision Liquid Control

A key advantage of the 700 Series is the smooth feel created by the precision-matched plunger and barrel. This “velvet feel” helps users achieve fine control during low-volume manual dispensing and repeatable injection technique in chromatography applications.

As an authorized distributor, Chrom Tech helps laboratories select the right Hamilton 700 Series syringe based on volume, termination style, needle configuration, and application requirements. For workflows that require accurate liquid handling with a proven fitted Microliter syringe design, Chrom Tech can help match the right 700 Series syringe to your method.

Key Definitions ▸
700 Series Microliter Syringe
Hamilton’s original fitted Microliter syringe family designed for accurate low-volume liquid handling in analytical workflows.
Fitted Plunger-and-Barrel Design
A syringe construction in which the stainless-steel plunger is individually matched to the glass barrel to create a tight liquid seal and smooth plunger movement.
Leak-Free Fit
A close-tolerance seal between the plunger and barrel that helps prevent liquid leakage during manual dispensing or injection.
Velvet Feel
Hamilton’s term for the smooth plunger motion created by the precision-fitted 700 Series stainless-steel plunger and glass barrel.
Homogeneous Liquid Sample
A uniform liquid sample without particulates or phase separation, typically best suited for fitted Microliter syringe use.
Syringe Termination
The end connection style of the syringe, such as cemented needle or removable needle, chosen to match the application and hardware setup.
Microinjection
A very small-volume injection technique used in analytical and research workflows where precise sample delivery is essential.
Manual and Automated Injection
Syringe use in either hand-operated or instrument-assisted workflows, including GC and HPLC injection methods.
Non-Interchangeable Plunger
A plunger that must remain with its original matched barrel because fitted Microliter syringe components are precision paired rather than universally replaceable.
Frequently Asked Questions ▸
What is the Hamilton 700 Series used for?
Hamilton positions the 700 Series for low-volume liquid handling in HPLC, microinjection, titration, and manual or automated GC and HPLC injections. :contentReference[oaicite:1]{index=1}
What makes the 700 Series different from other Microliter syringes?
Hamilton describes the 700 Series as the original Microliter syringe family, built with a stainless-steel plunger individually fitted to the glass barrel for a leak-free fit and smooth “velvet feel.” :contentReference[oaicite:2]{index=2}
Are the plunger and barrel interchangeable in a 700 Series syringe?
No. Hamilton states that the plunger and barrel are not interchangeable because they are precision fitted to each other for accurate liquid handling. :contentReference[oaicite:3]{index=3}
What kinds of samples are best suited for the 700 Series?
The 700 Series is best suited for homogeneous liquid samples where the fitted plunger-and-barrel design can provide smooth, accurate, and repeatable dispensing. Hamilton broadly positions the Microliter family for homogeneous samples. :contentReference[oaicite:4]{index=4}
What volume range is available in the 700 Series?
Hamilton lists core 700 Series syringe options from 5 µL to 500 µL, depending on syringe model and configuration. :contentReference[oaicite:5]{index=5}
Can the 700 Series be configured for different applications?
Yes. Hamilton notes that the 700 Series can be personalized with different sizes, terminations, gauges, point styles, and needle lengths to better match specific applications. :contentReference[oaicite:6]{index=6}
Why is the 700 Series often chosen for routine lab use?
Hamilton highlights the 700 Series for everyday lab use because it combines precise low-volume liquid handling, a leak-free fitted design, and broad versatility across manual and automated workflows. :contentReference[oaicite:7]{index=7}
Does Chrom Tech help with 700 Series syringe selection?
Yes. Chrom Tech can help identify the right Hamilton 700 Series syringe based on volume, needle style, termination, and whether your workflow involves HPLC, GC, titration, or other small-volume liquid handling tasks.