G9889A Cary Multicell Peltier UV-Vis: thermal precision for demanding spectrophotometric analyses
Agilent's G9889A Cary Multicell Peltier UV-Vis module is designed to meet the needs of pharmaceutical, medical, and scientific laboratories that require precise temperature control and the ability to analyse multiple samples simultaneously. This module connects to the Cary 3500 engine and enables spectrophotometric measurement on eight cuvette positions, divided into four independent thermal zones. Each zone controls two cuvettes, allowing differentiated analyses to be performed in a single experimental cycle. Thanks to Peltier technology, the temperature can be adjusted from 0 to 110°C, either by the cuvette block or directly via a probe inserted into the sample, offering maximum flexibility for temperature-sensitive protocols.
The multi-zone design allows each pair of cuvettes to be configured independently, which is particularly useful for kinetic studies, comparative testing or thermal stability protocols. This functionality is enhanced by fibre optic distribution, ensuring signal homogeneity and reduced optical interference between channels.
Modular architecture and integration into regulated environments
The G9889A features a modular architecture that separates light generation (engine) from measurement (module), allowing for simplified maintenance and adaptation to specific analytical needs. The module is equipped with an LED status indicator, a purge system to prevent condensation at low temperatures, and an integrated drain to remove liquids in the event of overflow. Air cooling eliminates the need for external fluids, reducing the risk of contamination and facilitating installation.
This module complies with CE standards and electromagnetic compatibility requirements (EN55011/CISPR11), making it ideal for environments subject to ISO, GMP and FDA standards. It integrates easily into regulated workflows thanks to its USB connectivity, quick installation via a mounting lever, and compatibility with Cary UV-Vis accessories such as temperature probes and purge kits.
Analytical performance and operational safety
The G9889A is designed to deliver reliable and reproducible analytical performance. Its sample compartment can be purged with nitrogen or compressed air to prevent condensation, with a recommended flow rate of 15 L/min. Safety is enhanced by thermal warnings and precautions built into the module design, including hot surface protection and spill management. Maintenance is facilitated by access to fuses and the use of Agilent-certified spare parts.
This module is particularly suitable for complex spectral analyses, formulation studies, stability testing and validation protocols in regulated environments. It represents a robust and accurate solution for laboratories seeking reliable, scalable instrumentation that complies with international requirements.
