RA-4300FG+ Mercury Analyzer

Ultra-Trace Mercury by EPA 1631E & EPA 245.7

The NIC RA-4300FG+ Mercury Analyzer is a highly sensitive and simple to operate ultra-trace level mercury analyzer. Compliant with US EPA 1631E & EPA 245.7, the NIC RA-4300FG+ operates on the principles of reducing vaporization, with or without gold-amalgamation, and cold vapor atomic fluorescence spectroscopy (CVAFS). The fully enclosed system with included HEPA/Carbon filtration ensures that your samples are protected against outside contamination and reduces blank levels. With simple, user-friendly software, the RA-4300FG+ is designed to simplify and exceed your trace mercury analysis requirements. The system offers an additional level of automation by allowing automatic addition of both the BrCl and Hydroxylamine reagents for sample preparation.

This compact unit provides full CVAFS mercury analysis while also being user-friendly. For example, daily inspection for equipment stability is completely automated. Peaks for mercury and other substances are identified automatically, as well as the validity of calibration curves. In addition, it can share tubes with other analyzers, resulting in lower operating costs.

RA-4300FG+ Mercury Analyzer Key Features:

  • US EPA Compliant for EPA 1631E & EPA 245.7
  • Detection limits: 0.1 ppt to 100 ppb by Atomic Fluorescence Spectrometry (CVAFS)
  • Discrete, direct purge of mercury from each sample; simplifying operation while eliminating carryover and reducing waste
  • Capable of operating with or without Gold-Amalgamation
  • Automatic dispenser ensures consistent and safe addition of reagents
  • Built-in reagent purging system
  • Automatic sample preparation and analysis
  • Advanced Quality Assurance software protocols for US EPA methods 245.7 & 1631E
  • No clean room required – includes a HEPA controlled enclosure
  • > 80% less waste over flow injection instruments

Why Buy From AGS Scientific?

AGS Scientific is proud to offer the best equipment on the market and the expertise to provide the proper solution for your needs. Our in-depth knowledge means you can be confident that whatever product you purchase from us should be the ideal answer to your specific requirements. If you’d like to learn more about what we can do for you, reach out and speak with one of our representatives today.

Additional Resources

Application – Trace Mercury Analysis

“Why Choose the RA-4300FG+?”


Nippon Instruments

RA-4300FG+ Mercury Analyzer


  • US EPA Methods 245.7 & 1631E
  • Wastewater Permit Reporting
  • Industrial Discharges
  • Drinking Water & Other Waters
  • ISO 17825 & 12846
  • EN-13506 and EN-12338

Customer Testimonial:

“I absolutely love the Nippon RA-4300FG+ low level mercury analyzer. I work in an environmental lab with fast turnaround times, and a high amount of dirty samples. I doubted that we would be able to run low level mercury without contamination issues. The Nippon RA-4300FG+ proved otherwise. We are able to successfully run low level mercury samples without sticky mats or plastic curtains. The low level mercury analyzer currently sits in our lab between our CVAA and our acid waste! Working with Nippon has been great. They stayed after install until we were comfortable with the instrument and the method, they helped us with method development to be in compliance with the EPA, and to this day they are a simple phone call away in case I have any questions.”
– Jessica

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