preparative version
The Autosampler AS 6.1L can inject from up to 768 positions when equipped with microtiter plates (either high or low formats) or from up to 108 standard 2 ml sample vials. Sample carryover is significantly minimized thanks to a highly-effective interior and exterior needle wash procedure. This autosampler is also fast and flexible: one complete sample injection cycle takes less than one minute, including needle wash. Three different injection modes are supported; “full loop filling” (highest precision and reproducibility), “partial loop filling” (variable volumes, e.g. for dilution series) and “µl pickup” (loss-free injection of extremely small sample volumes), allowing the user to optimize sample usage. The headspace pressure function prevents bubbles from forming in the vial during sample uptake. Precolumn derivatization is supported. Preparative version for sample volumes up to 10 ml.
Technical Data
| Autosampler Flow Path |
Preparative |
| Maximum back pressure |
200 bar |
| Vial/plate dimensions |
max. plate/vial height: 47 mm (incl. septa or capmat) |
| Injection volume range |
0.1 µl – 10 ml depending on sample loop |
| Sample loop |
10 ml |
| Dispenser syringe |
2500 µl |
| Headspace pressure |
built-in compressor, only for sample vials with septum |
| Switching time inj. valve |
< 100 ms |
| Piercing needle precision |
± 0.6 mm |
| Sample tray cooling |
none |
| Vial detection |
missing vial/well plate detection by sensor |
| Needle wash |
programmable: wash between injections and wash between vials |
| Wetted materials |
Tefzel® (ETFE), Glass, Teflon® (PTFE), Kel-F® (PCTFE), stainless steel, PEEK |
| Injection modes |
partial loop filling |
| Injection precision |
RSD (Relative Standard Deviation):full loop injection: <0.3%partial loop injection at injection volume>5 µl: <0.5%microliter pickup injection at an injection volume>5 µl: <1.0% |
| Sample carryover |
< 0.1 % with standard needle washRSD ≤ 1.0 % for partial loop filling, injection volumes> 10 µl up to 50 % of the installed sample loop |
| Injections per vial |
max. 9 injections |
| Injection cycle time |
minimum 7 s from the same vial, 14 s from different vials;< 60 s for>100 µl sample injection in all injection modes, incl. 300 µl needle wash |
| 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) |
| Interfaces |
LAN, analog |
| Ambient conditions |
temperature range: 10–40 °C; 50–104 °F air humidity: 20 – 80% |
| Power supply |
95–240 V AC |
| Dimensions |
377 x 300 x 510 mm (W x H x D) |
| Weight |
30 kg |
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AZURA Autosampler AS 6.1L User Manual EN (V6821)
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AZURA Autosampler AS 6.1L Benutzerhandbuch DE (V6821)
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List of supported devices in chromatography data systems EN (V1663)
Device support in KNAUER CDS / KNAUER device support in 3rd party software
ICON Scientific, Inc
