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The AOC-20 Series are autosamplers for Shimadzu gas chromatographs that dramatically improve the work efficiency and reliability of GC analysis.
Sample introduction is a key aspect of any gas chromatographic system. The auto injector must be able to inject samples into a variety of injection ports, including split/splitless, direct (WBI), cool on column (OCI) or programmed temperature vaporization (PTV).
Injection parameters also must be controlled to best suit your sample analysis. The new AOC-20 (Automatic Operation Controller) does all of this and more, providing the ideal solution for your laboratory challenges.
The AOC-20 provides the highest degree of reliability. This means that the unit produces reproducible results, with a minimum of problems such as bent needles, evaporating samples, etc. Maintaining reproducible results requires that periodic maintenance be performed, such as changing the injection port septa or syringe. With the AOC-20, these procedures are simple and you can comfortably perform them without fear of adversely affecting instrument performance.
The challenge in today’s laboratory is processing large sample numbers and various vial types in an automated fashion. In addition, ever decreasing detection limits demand increased flexibility for different injection techniques, including large volume injection (LVI), solvent flush, and solvent flush with a second solvent. The AOC-20 meets these challenges and enhances throughput to meet your productivity goals.
The AOC-20s Auto Sampler carousel and robotic arm provide for sample transport to the AOC-20i Auto Injector using 1.5 mL and 4.0 mL vials. The system is smart too! It can tell the difference between the vial types by reading the information from the vial tray in use. The AOC-20i/AOC-20s is a powerful automation tool for the GC laboratory that allows the user to take full advantage of the GC system’s capabilities.
|Sample Injection Method||Liquid sample injection via special microsyringe|
|Sample Volume||0.1 ~ 8.0 µl, 0.1µl steps (using 10ul syringe)|
0.5 ~ 40 µl, 0.5 µl steps (using 50ul syringe)
2.5 ~ 200 µl, 2.5 µl steps (using 250ul syringe)
|Number of Samples||6 vials (with option, 12 possible)||1.5ml sample vials - 150 vials|
4ml sample vials- 96 vials
|Sample Vials||Glass construction, 1.5ml, 4ml, screw top, PTFE-coated septum|
|Rinse Solvent Vials||Glass construction, 4ml, screw top, PTFE-coated septum|
|Number of Sample Injections||1 ~ 99 injections per sample|
|Syringe Speed||2 Modes: Fast and Slow|
|Plunger Speed||3 Modes: Fast, Medium and Slow|
|Wait Time||0 ~ 99 sec following sample aspiration (in 0.1 sec steps)|
|Type of Sample Injection||3 Modes: Traditional, Solvent Flush and Solvent Flush with a Second Solvent|
|Injection Volume Linearity||±0.5% (injection volume 1 ~ 5 µl, sample n-C12|
|Cross Contamination||Less than 10-4 (as determins with a 1% diphenyl in hexane using 4 solvent rinses)|
|Priority Sample||A priority sample injection can be injected during a sample sequence, the the sequence can be resumed|
|Dual Injection System||Available on GC-17A platform only||One set of AOC-20s can feed sample vials to two sets of AOC-20i|
|Sample Cooling/Heating||0 ~ 60°C, with optional cooling rack connected to a general laboratory circulating water bath|
|External Control||Includes optional optical link or RS232C interface|
|Dimensions, weight||126 (W) x 380 (H) x 78 (D) mm, 2.5 kg||320 (W) x 135 (H), 2.4 kg|
|Power Supply||260 (W) x 70 (H) x 420 (D) mm, 2.8kg|
|Power requirements||AC100/115/220V±10% 50/60HZ|