Used AGILENT G1888 (G1888A)

Agilent G1888A Network Headspace Sampler

**This instrument has been tested for basic function. Sampler initializes upon startup and passed self check. This unit has some scratches on side panel chipped paint on front. See photos for details.

The Agilent G1888 Headspace Sampler lets you automatically introduce volatile compounds from virtually any sample matrix directly into a GC or GC/MSD system. It features an inert sample pathway for superior chemical performance without analyte

degradation or loss. And its high sample capacity and increased sensitivity ensure excellent performance for a wide range of analysis.

Built-in performance and reliability

From sampling… to detection… to data analysis and reporting… Whether your application is pharmaceutical, food safety, environmental, or forensic… The G1888 is a fully integrated system that gives you unsurpassed confidence in your results.

Features:

70-sample tray and 12 positions in the heating oven allow unattended overnight operation for many applications

Automated constant heating time is employed with optimized sample overlapping for maximum sample throughput in the minimum amount of time

Deactivated sampling path, from sampling needle to transfer line, is standard so coupling with an inert 7890A or 6890N Volatiles Interface achieves complete chromatographic system inertness

Controlled temperature range from 40 degrees C to 230 degrees C makes it possible to analyze semi-volatiles at temperatures over 200 degrees C, as well as traditional applications for low boiling point analytes

Heated zones can be turned off, which allows analyses at ambient conditions for biological or extremely thermally sensitive analytes

Incorporates two modes of multiple headspace extraction (MHE) in addition to routine single extraction (one sampling per vial)

Multi-puncture extraction with up to 100 extractions per vial is possible for the analysis of samples in unusual matrices

A ‘concentration mode` of MHE allows multiple extractions from a vial to be made, followed by the start of the GC run after the last extraction

Includes several convenient testing and troubleshooting features, including a set of four pre-stored chemical test methods, a semi-automated leak test, and a detailed power-on self-test

Instrument control can be achieved using the GC ChemStation, MSD Productivity ChemStation and MSD Security ChemStation, or Cerity NDS for Pharmaceutical QA/QC

Instrument control is integrated with drop-down menus for ease of method setup. The existing sequence table is used to set up analyses, maintaining optimized sample overlap and constant heating time.

An event log function tracks every headspace sampler operation and reports any temperature and pressure deviation compared to the set point in compliance with 21 CFR Part 11

Built-in keypad control enables compatibility with all GCs

Manufacturers Specifications:

Sample Capacity

Holds 70 vials in tray. Twelve position oven for optimized sample overlapping constant time heating.

Sample Vials

Standard crimp top or screw cap vials, 20 mL, 10 ML. No adaptor required for 10-mL sample vials.

Mode of Operation

Shaking with choice of off, low, or high.

Constant heating time (CHT) mode for each sample. Overlapping up to 12 vials for maximized sample throughput

Multiple headspace extraction (MHE) mode with up to 100 extractions per vial for method development and validation or for analysis of sample in unusual matrices

Multiple headspace extraction concentration (MHC) mode, with up to 10 extractions from 1 vial made followed by one GC start after the last extraction to increase sensitivity

Zone Temperature

All temperature zones can be set off

Oven heating: 40 °C to 230 °C in 1 °C increments; 0.5–999 min in 0.1 min increments

Loop/Valve: 45 °C to 250 °C

Transfer line: 50 °C to 250 °C

Sample Pathway

Inert deactivated path from sample needle to transfer line. Transfer line length: 85 cm. Sample loop: 1 mL (standard), 3 mL (option)

Pneumatic Control

In-unit switch connection between: Built-in manual pneumatics (pressure regulator and flow controller) and GC built-in electronic pneumatic control (EPC)

Interfacing with GC

Volatile inlet (VI) or other standard GC inlet

Communication

LAN; RS-232; Remote start/stop

System Control

Control and monitoring by full function control keypad and built-in multiline display. Features:

• Parameter set up

• Store up to four user defined headspace methods (there are also five preset methods)

• Detailed power-on self test

• Built-in leak test routine

• Update firmware via LAN or RS-232

• Monitor set and actual values, as well as, operation status

Environmental Conditions

Operation: 10 °C to 35 °C

Storage: –40 °C to 70 °C

Humidity: 5% to 95%

Line voltage: 100–240 V ±10%

Power required: 750 VA maximum