MERX Total Mercury Analyzer for EPA 1631
At Brooks Rand, we firmly believe that obtaining the highest
quality data is essential, but also recognize the necessity of
operational efficiency. Our decades of trace level mercury analysis
experience have enabled us to develop a system that achieves both
of these critical goals.
- Ultra-low level – instrument detection limit of <0.03 ng/L
- Wide linear range – quantifiable range of 5,000x (0.08-400 ng/L)
- Reduced contamination – The biggest challenge to performing quality
ultra-low level mercury analysis is avoiding contamination. MERX
greatly reduces sample contamination in two key areas:
- Carryover contamination – By purging samples in the vials, only
gaseous elemental mercury is transferred from the vial through an
inert transfer line to the amalgamation trap, vastly reducing
carryover contamination. Most other systems struggle with carryover
contamination due to the use of a common pump, transfer line and
- Atmospheric contamination – Utilizing sealed sample containers on
the autosampler prevents atmospheric mercury from contacting the
sample. Other systems have open vials therefore requiring operation
in a clean room type atmosphere.
- Reduced reagent consumption – Rather than requiring a continuous
flow of reagents common to most other systems, MERX only uses the
necessary amount of reagents to effectively reduce the sample,
minimizing reagent and waste disposal costs.
- Less maintenance – In addition to syringe and peristaltic pumps
being a huge source of cross contamination, these pumps generally
require constant maintenance and tubing replacement. With the
pump-free MERX system, these issues simply don’t exist.