AOC-20i Plus Auto Injector/Auto Sampler for GC/GC-MS

Reproducibility and reliability are what make an auto injector valuable to a laboratory involved in high-throughput gas chromatography analysis. Reproducibility can be adversely affected not only by less than optimum injection conditions, but through sample evaporation as well.  The AOC-20i ensures that both of these needs are met.

500 ppm Grob test mix standard sample Injected 10 times.

Peak1 Peak2 Peak3 Peak4 Peak5 Peak6 Peak7 Peak8 Peak9
1 18687 16607 19118 29138 23337 15642 15126 20503 16802
2 18605 16523 19040 28976 23240 15601 15081 20503 16753
3 18526 16482 18973 28976 23168 15538 15039 20342 16716
4 18631 16555 19066 29049 23287 15623 15120 20440 16785
5 18668 16616 19139 29130 23346 15672 15161 20517 16862
6 18679 16616 19136 29111 23353 15666 15167 20508 16852
7 18622 16576 19070 29044 23282 15618 15090 20436 16796
8 18628 16574 19095 29080 23307 15629 15112 20456 16808
9 18654 16559 19085 29044 23282 15615 15116 20459 16806
10 18663 16601 19101 29112 23335 15624 15119 20424 16798
Mean 18636.3 16570.9 19082.3 29057.2 23293.7 15622.8 15113.1 20448.5 16797.8
C.V, % 0.252 0.262 0.259 0.266 0.244 0.238 0.247 0.262 0.252

Neither the acidic (peaks 2 & 3) nor the basic compounds (peaks 5 & 8) show any evidence of tailing,

indicating the inertness of the sample path in the GC.

Mounts without any nuts or screws

Easy syringe replacement

Just one cable connection

Handling up to 150 vials, for increased productivity

Injection Tower (AOC-20i Plus)

Two-Step Injection
Automates Time-Consuming Derivatization Process

For certain analyses, on-column derivatization can be performed using the optional 2-step AOC control software
Place the derivatization reagent in its specific vial and turret position, in order to perform fresh on-demand on-column derivatization
Compatible Syringes: 1,2,5,10, 25,50,100, and 250 µL

Dual Injection System
(Double your productivity with the Dual Tower)

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