Vials and inserts for small volumes

Microsert® limited volume inserts

Microsert® inserts are small borosilicate glass inner vessels placed in a standard autosampler vial. They drastically reduce the dead volume in the vial, so the autosampler needle fully reaches the sample even at very small volumes. Conical inserts provide complete downward drainage for maximum recovery of the contents.

Brown supplies Microsert® inserts in two basic shapes and several volumes:

Conical inserts (maximum drainage)

Cylindrical inserts

OEM references: 5181-1270 (Agilent 300 µl conical), 5181-3377 (Agilent 400 µl cylindrical)

The 50 µl insert (150613) requires a stainless steel compression spring (150614, 37×5 mm) for support. All other inserts sit stably in the vial on their own.

Microsert® hangende inserts (156105)

The hanging insert is an innovative solution in which the insert automatically centres in the neck of the vial, without plastic feet or a metal spring. The insert always hangs at the right height for a complete injection and forms a perfect seal with the septum.

Advantages over traditional inserts:

• No compression spring or plastic feet needed
• Always correctly positioned, even after repositioning
• Perfect seal on the septum guaranteed
• Reusable and more economical than vials with fused inserts
• Large opening for easy pipetting

Waters WISP inserts and compression springs

For Waters WISP autosamplers, Brown supplies specific inserts and matching compression springs:

Compression springs:

Maximum Recovery autosampler vials

Maximum Recovery vials have a conical bottom with a volume of only 50 µl, allowing injection from 5 µl. They are the ideal tool when you work with costly standards, scarce samples or derivatisation reagents where every microlitre counts.

Applications:

• Full use of costly standards and derivatisation reagents
• High concentration ratio on evaporation (up to 100:1)
• Maximum separation in liquid-liquid extraction
• Microsampling in clinical, pharmaceutical and environmental research

Available with 11 mm crimp, 9-425 screw cap or 11 mm snap ring, in clear and amber glass. OEM reference: 5182-3454 (Agilent).

Limited volume vials for Agilent

For Agilent autosamplers with an 8 mm crimp neck or 8 mm snap cap, Brown supplies dedicated limited volume vials in borosilicate glass:

Micro vials for Agilent (8 mm crimp or snap cap)

Mini vials for Agilent 1050 (34-vial tray, amber)

1.1 ml conical bottom vials for Agilent

Limited volume vials for Unicam, Beckman and SGE

Use 8 mm crimp seals or 8 mm snap caps.

Vials with pre-assembled inserts: ready to use

Brown supplies three versions of autosampler vials with the insert already fitted, so you can fill and analyse immediately without extra steps.

Crimp vials with hanging inserts (250 µl, insert 156105)

No compression spring needed. Reusable. Use 11 mm crimp seals or snap caps.

Vials with integrated inserts (0.3 ml, insert 150820 or 155650)

Insert automatically centred, no spring or plastic feet needed.

Vials with bonded inserts (0.3 ml)

For microsampling, trace analysis, environmental research and clinical applications. The insert is permanently bonded to the vial: no risk of shifting or coming loose, no compression spring or plastic feet.

Available with 11 mm crimp (wide opening), XL® 9-425 screw cap or 11 mm snap ring, in clear and amber.

Which solution suits your application?