Firma:              Varian

Modell:            CP 8400

Kommentar:   Dokumente engl.

• Now with Solid Phase Microextraction (SPME)

• Three vial-size options with the CP-8410 Autolnjector

• Automatically access two injectors with a single tower

The Varian CP-8400 AutoSampler and CP-8410 Autolnjector elevate GC automation to new levels of reliability, productivity, and performance. Built on the same platform design, both sample handling devices offer the same outstanding performance features.

CP-8400 AutoSampler provides high throughput with up to 100 samples. The CP-8410 Autolnjector provides flexibility with a fixed sample tray supporting 2 mL, 5 mL, and 10 mL vial sizes.

Choice of Three Sample Introduction Methods

Liquid, headspace, and SPME injections are all possible from one versatile autosampler, the CP-8400 or the CP-8410.

Five preset liquid injection modes are available: split/splitless, on-column, volatile, neat, and viscous. These pre-set modes contain the optimized parameters for specific samples. Alternatively, users may define custom injection parameters.

Reliability

Varian's new injector nut and syringe needle guide enable the CP-8400 and CP-8410 to precisely align the syringe needle over the injector. Simple rotating and fixed carousel designs eliminate complex robotics commonly associated with sample vial transfer.

The unique injector nut and simple carousels, combined with rugged construction, assure continuous, reliable operation.

Flexibility

On both the CP-8400 and CP-8410, the single syringe tower automatically accesses two independent injectors. The ability to access both injectors allows for dual and duplicate sample injections as shown in the examples to the right. Internal standards or matrix spikes can be automatically added to any injection.

Sample Integrity

Both the CP-8400 and CP-8410 sample trays and syringe needles are positioned away from all heated surfaces. This configuration prevents volatile solvent evaporation and degradation of thermally sensitive samples. Optional sample cooling and heating can be added to the CP-8400 and CP-8410 to further enhance performance.

Maintenance is Easy

Routine injector maintenance, such as septum and insert replacements, is easily accomplished without removing the autosampler!

Complete, Automated SPME

SPME is a solvent-free sample preparation technique where analytes are extracted onto a liquid phase coated, fused silica fiber. The coated fiber is then inserted into a GC injector for thermal desorption and analysis.

With automated SPME on the CP-8400 and the CP-8410, every step from extraction to desorption is precisely timed for optimum reproducibility. Sample throughput is greatly increased with automated SPME.

SPME Applications

Many applications handled by expensive, dedicated purge and trap or static headspace equipment can be done with SPME. In addition, SPME can be used for semivolatile compounds in aqueous matrices.

Applications include:

• Volatile organics, pesticides, phenols, PNAs, and explosives in environmental samples

• Flavors and contaminants in food

• Blood alcohol, arson, and drug analysis in forensic applications

• Organic volatiles in pharmaceuticals

• Polymers and other industrial formulations

Automated SPME on the CP-8400 and the CP-8410 delivers more accurate results with greater throughput than manual SPME.

CP-8400/8410 SPME Performance

Powerful Control Software

CP-8400/8410 SPME is controlled by the Varian CP-3800 GC either standalone, or through the Star or MS Workstations. Both Star and MS Workstations provide easy method optimization and logging of all instrument parameters.

Maximize Throughput with Prep Ahead

Prep Ahead begins the extraction of the next sample while the current sample is running. Analytical cycle times are reduced for greater throughput.

Enhanced Semivolatile Extraction

Efficient extraction is facilitated by frequent and rapid up and down agitation of the SPME fiber. Agitation is essential for the analysis of some semivolatiles.

Easily Handle Solid Samples

The 5 mL and 10 mL vial capacity of the CP-8410 Autolnjector tray provides easier handling of solid samples.

Automated On-Fiber Derivatization

On-fiber derivatization of polar compounds, such as fatty acids and steroids, is possible with the CP-8400 and CP-8410.

Specifications

• Area reproducibility: 0.4% RSD cold-on-column, 1 µL, FID detector

• Minimum sample volume: as low as 20 µL, dependent on micro vial insert

• CP-8400 sample capacity: 100 vials (2 mL)

• CP-8410 sample capacity: ten 2 mL, six 5 mL, and five 10 mL vials

• Sample carry over: not measurable after three solvent flushes in standard/split/splitless and cold-on-column

• Waste drain: one

• Syringes: 10 µL syringe standard; 5 µL and 100 µL syringes optional

Programmable Features

• Sample volumes:

  0.1-10 µL for 10 µL syringe in 0.1 µL increments

  0.1-5 µL for 5 µL syringe in 0.1 µL increments

  1-80 µL for 100 µL syringe in 1 µL increments

• Solvent wash selection: Solvents I, II, and III; can be programmed in any combination

• Pre-injection solvent flushes: 0-99

• Post-injection solvent flushes: 0-99

• Pre-injection sample flushes: 0-99

• Solvent plug: 0-10 µL with 10 µL syringe

• Sample and solvent air plug: volume programmable 0-10 µL for 10 µL syringe

• Internal standard volume: 0.0-9.0 µL

• Needle depth (sample): 0-100%

• Sample draw-up speed: 0.1 to 50.0 µL/sec

• Plunger pause time: 0-9.9 sec

• Hot needle time: 0.0-99.9 sec

• Injection speed: 0.1-50 µL/sec

• Residence time: 0.0-99.9 sec

• Dual/duplicate injection offset: 0.5-10.0 min

• Sample cooling (optional): 10 to 40°C

Programmable SPME Features

• SPME extraction time: 0-640 min

• SPME desorption time: 0-640 min

• Sample depth: 0-100%

• Solvent depth: 0-100%

• Sample strokes: 0-500k strokes at 1-2 Hz

• Prep Ahead: yes/no

• Prep Ahead delay time: 0 to 999.99 min

• Derivatization: yes/no

• Reagent reservoirs: choice of position I, II, or III

• Reagent extraction time: 0 to 640 min

Dimensions

22.1 cm (w) x 47.3 cm (d) x 40.2 cm (h)

Net Weight

• CP-8400: 6.94 kg

• CP-8410: 6.94 kg

Power Requirements

• 19-24 Vac provided by CP-3800 GC and CP-3380 GC auxiliary (fused)

Input current maximum: 1A

Environmental Conditions

• Operating temperatures: 5°C to 40°C

• Operating humidity (relative): 0% to 95%