Preparative version for sample volumes up to 10 ml with biocompatible flow path.
Autosampler 3950
High precision injection
Low carry-over due to efficient needle wash
Supports three injection modes: full loop, partial loop filling, and µl pickup
Headspace pressure function prevents bubbles at sample uptake
| Sample capacity | 24 vials, 10 ml each (LSV) |
|---|---|
| Vial/plate dimensions | max. plate/vial height: 47 mm (incl. septa or capmat) |
| Injection volume range | 1–10000 µl programmable |
| Sample loop | 10 ml |
| Dispenser syringe | 2500 µl |
| Headspace pressure | built-in compressor, only for vials with septum |
| Switching time inj. valve | < 100 ms |
| Piercing needle precision | ± 0.6 mm |
| Sample tray cooling | 4-20°C |
| Vial detection | missing vial/well plate detection by sensor |
| Needle wash | programmable: wash between injections and wash between vials |
| Wetted materials | PEEK,Tefzel®, Vespel®, glass, Teflon®. |
| Injection modes | partial loopfill |
|---|---|
| Injection volumes | 1–5000 µl, 1 µl increments |
| Sample carryover | RSD ≤ 1.0 % for partial loopfill injections, injection volumes > 10 µl up to 50 % of the installed sample loop |
| Injections per vial | max. 9 injections |
| Analysis time | max. 9 h, 59 min, 59 s |
| Inputs | 2 programmable TTL inputs (next injection, freeze, stop) |
|---|---|
| Outputs | 1 programmable relay output (inject marker, auxiliary, alarm) |
| Control | Ethernet (LAN) |
| Ambient conditions | temperature range: 4–40 °C; 39.2–104 °F air humidity: below 90 % humidity (non condensing) |
|---|
| Power supply | 90–230 V AC ± 10 %; 50–60 Hz; 200 VA |
|---|---|
| Dimensions | 300 x 360 x 510 mm (W x H x D) |
| Weight | 21 kg |
Vials: Crimp neck vials N20 (ø 22 mm), 10 ml, clear glass Caps: Cap PE transparent, N20 for flat crimp neck, center hole, Septa: Natural rubber red-orange/TEF, 1000 pcs. each
Article No.: A1585
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