GC, or gas chromatography, autosamplers are instruments that automatically take a sample and insert it into the GC for analysis, which is both more time effective and more reliable than doing it by hand. GC autosamplers can be used anywhere GC is used, including forensic, environmental, and medical labs, in the pharmaceutical and food and beverage industries, to analyze a sample for quality control, purity, or to look for a particular analyte. There are three main types of GC autosamplers; liquid, which work with liquid samples, headspace, which work with volatile organic samples, and SPME which uses a fiber to extract the components of your sample. There are GC autosamplers that can do all three types of autosampling.
The types of samples you will be analyzing will dictate which type of autosampler you will need. Keep in mind the sample size you wish to use, how many analyses need to be run in a given time, and if there are different types of samples that would require a multipurpose autosampler.
Discover and compare GC Autosampler:
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| Company | Shimadzu | Shimadzu | Shimadzu |
| Item | HS-20NX Headspace Samplers | AOC-20i Automatic Sampling System | AOC-30 Series Autoinjector / Autosampler |
| Citations | | | |
| Catalog Number | HS-20 | AOC-20i | AOC-30 |
| Price | | | |
| Type | Headspace Sampler | Liquid Injection, Headspace | Inquire |
| Sample Volume | 10 to 20 mL | 0.1 to 200 µl | Inquire |
| Number of Samples | 90 | 6 to 12, up to 150 | Inquire |
| Description | Shimadzu’s HS-20 NX Series of headspace samplers provides a reliable and robust headspace solution for any application analyzing volatile components in a difficult matrix. The HS-20 NX Series consists of two models: a Loop model for the traditional static headspace methods, and a Trap model, which Shimadzu’s HS-20 NX Series of headspace samplers provides a reliable and robust headspace solution for any application analyzing volatile components in a difficult matrix. The HS-20 NX Series consists of two models: a Loop model for the traditional static headspace methods, and a Trap model, which adds the dynamic headspace technique for applications requiring greater sensitivity.
The HS-20 NX series uses the isolation gas flow to reduce carryover to 1/10 of conventional models. The proprietary isolation gas flow prevents sample diffusion from the vent channel. This reduces carryover of highly adsorptive compounds and eliminates the need for repeating blank runs.
Additional features
• Excellent reproducibility – the sample vial is loaded from the lower part of the oven, which minimizes heat dissipation in the headspace oven as the vial enters and exits, while maintaining high temperature stability during repeated analyses.
• High temperature capability – vial oven and sample line can be set to 300 °C and the transfer line can be set to 350 °C
• Short, inert sample pathway – suppresses adsorption of analytes, including high-boiling compounds, and peak broadening
• Ready-to-use alternative carrier gas – supports the use of nitrogen and hydrogen as alternative carrier gases, and makes it easy to transfer analysis methods
• ClickTek™ NX Connector – enables users to connect columns easily and without tools, simplifying replacement and routine system maintenance
• Easy access and automatic overlap analysis – up to 12 vials can be kept warm in the headspace oven, and automatic overlap analysis optimizes the total analysis time, even for methods that require longer vial heating periods... Read More | The AOC-20i auto injector is the perfect solution for automated analyses. Its proven reliability and reproducibility allows the user to take full advantage of the GC or GC/MS system capabilities. When paired with the AOC-20s autosampler carousel, your laboratory's productivity can be greatly The AOC-20i auto injector is the perfect solution for automated analyses. Its proven reliability and reproducibility allows the user to take full advantage of the GC or GC/MS system capabilities. When paired with the AOC-20s autosampler carousel, your laboratory's productivity can be greatly increased. The AOC-20 is highly reliable and capable of high sample throughput, yet it is lightweight and easy to remove when routine injection port maintenance is required. The enhanced needle guide virtually eliminates bent syringe needles. The AOC-20 series can perform the functions of direct liquid injection, on-column injection, ambient headspace and PTV/LVI injection modes. The AOC20 offers precision better than 0.3% and carryover is less than 0.005%. Single or dual tower modes are available.
The AOC-20i is available as a direct replacement for the HP5890’s autoinjector.... Read More | The AOC-30 automatic sample injection system automates analysis, reduces an operator's workload, and enables continuous analysis with a high degree of accuracy that cannot be achieved by manual operation. Shimadzu's unique injection method achieves high reproducibility while preventing septum damageThe AOC-30 automatic sample injection system automates analysis, reduces an operator's workload, and enables continuous analysis with a high degree of accuracy that cannot be achieved by manual operation. Shimadzu's unique injection method achieves high reproducibility while preventing septum damage and liner contamination. The structure of Shimadzu's Xtra Life Inlet Septa results in excellent injection durability and enables continuous analysis that is approximately ten times that of conventional systems – up to 1000 injections before replacement.
Advanced sample washing functionality provides continuous analysis without the worry of running out of solvent. Four 4-mL vials can be used in a single tower, and twelve 4-mL vials can be used with the full tower and sampler system. Users can customize cleaning solvent types and cleaning sequences to optimize the cleaning effect for each analysis.
Additional features:
- Single tower system provides automated analysis of up to 30 samples, covering a wide range of analysis needs
- Additional sample towers and/or samplers can be added to increase analysis capacity and flexibility; for example, a dual-tower system increases capacity to 60 samples while a dual-sampler system increases capacity to 150 samples (1.5 mL vials)
- Housing structure is designed to make the installation area and the sampler as compact as possible, even as the system expands
- Built-in Sampler Navigator – reduces guesswork by letting users choose from a carefully curated list of optimized injection methods, prepared by experts in gas chromatography. Analysts simply enter the injection volume and solvent type and choose a preset, which can be finetuned for a more optimal sequence.
- Overlap feature – allows users to initiate preprocessing operations for the next sample injection at specified times, such as during or after GC analysis. The pre-treatment operation immediately before sample loading/injection is overlapped to increase throughput during continuous analysis.
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| Quantity | EA | EA | EA |
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