The Agilent 7650A Automatic Liquid Sampler (ALS), G4567A, is an automated liquid sampling and injection system designed for reliable and reproducible gas chromatography workflows. It accommodates up to 50 standard 2 mL sample vials, provides programmable injection parameters, performs fast injections in less than 100 ms, and supports a broad range of syringe sizes. It is compatible with Agilent 8890, 8860, Intuvo 9000, 7890, and 7820 gas chromatographs.
GC Compatibility
Compatible systems include:
- Agilent 8890 GC
- Agilent 8860 GC
- Agilent Intuvo 9000 GC
- Agilent 7890 GC
- Agilent 7820 GC with required ALS interface card.
Injection Performance
Fast injections are completed in less than 100 ms, helping minimize needle discrimination and sample decomposition during injection.
Programmable parameters include:
- sampling depth: −2 to +30 mm
- pre- and post-injection solvent washes: 0–15
- sample prewashes: 0–15
- viscosity delay: 0–7 s
- sample pumps: 0–15
- plunger speed: fast / slow / variable
- injection delay: 0–1 min
- pre-injection dwell: 0–1 min
- post-injection dwell: 0–1 min.
Syringe Support
Standard carriage:
- 1 µL
- 2 µL
- 5 µL
- 10 µL
- 25 µL
- 50 µL
- 100 µL
Optional large-volume carriage:
- 250 µL
- 500 µL
Compatible liquid and gas-tight syringes are supported.
Chromatographic Performance
- Area reproducibility: better than 0.3% RSD
- Carryover: less than 1 part in 100,000
- Sample discrimination: ≤10%
- Injection linearity: <5% RSD.
Sample Management
- Maximum sample capacity: 50
- Standard 2 mL vials
- Micro vial inserts supported
- Dedicated 4 mL solvent and waste positions
- Advanced random-access sequencing
- Next-sample overlap
- Priority samples
- Sequencing via compatible Agilent software or GC controls depending on configuration.
Technical Specifications
- PN: G4567A
- Type: GC automatic liquid sampler
- Sample Capacity: 50 vials
- Vial Type: standard 2 mL / micro inserts
- Fast Injection Time: <100 ms
- Minimum Injection Volume: 10 nL
- Maximum Standard Injection: 50 µL
- Maximum Large-Volume Injection: 250 µL
- Standard Syringe Range: 1–100 µL
- Extended Syringe Range: 250–500 µL
- Multiple Injections: 1–99
- Sampling Depth: −2 to +30 mm
- Viscosity Delay: 0–7 s
- Syringe Washes: 0–15
- Sample Pumps: 0–15
- Area Reproducibility: <0.3% RSD
- Carryover: <1:100,000
- Weight: 4.5 kg
- Injector Height: 51.5 cm
- Width: 21.7 cm
- Depth: 23.5 cm
- Operating Temperature: 15–35 °C
