Reducing-Vaporization Mercury Analyzer
Sensitive, accurate and multifunctional
Suitable for a wide variety of post-digested sample solutions, aqueous samples, including drinking water, industrial wastewater, river water, lake water, seawater and rain-runoff
USEPA 245.1 | USEPA 245.2 | USEPA 245.5 | USEPA 7470A | USEPA 7471B | ASTM D 3223-17 | EN-1483 | APHA 3112 | JIS K0102 | ISO 12846 and more
- Autosampler with 80 Positions
RA-4300A is equipped with an autosampler of 80 positions which maximizes the throughput of any fast-paced laboratory, providing results with the shortest turnaround time possible.
Superior Detection Limit and Sensitivity
– Detection Limit Down to 0.5 ppt
RA-4300A is equipped with a Non-Dispersive CVAAS which has a detection limit of down to 0.5 ppt (5 ppt including sample digestion process) with excellent accuracy and precision.
With this superior detection limit and excellent precision, it provides a wide range of applications to be analyzed in RA-4300A such as river water, lake water, etc.
Built-In Reagent Dispenser
RA-4300A has a built-in reagent dispersing system for
- Hydroxylamine hydrochloride
- Tin (II) chloride
- Sulfuric acid
The entire excess-oxidant quenching and reducing vaporization process is automated.
Discrete-Direct-Purge Technique of Reducing Vaporization
There are two methods of Reducing Vaporization, i.e.,
- Flow Injection Technique
- Discrete-Direct-Purge Technique.
All mercury analyzers in NIC employ Discrete-Direct-Purge Technique to minimize memory effect from mercury which causes cross-contamination issue.
Lower Operation Cost – No Carrier Gas Required & Reduced Consumption of Chemicals and Consumables
No Carrier Gas Required
Reduced Consumption of High Purity Chemicals
When comes to trace mercury analysis, purity of the reagents plays a vital role in having minimum background that interferes with the target analyte measurement. Consumption of reagents directly relates to the daily operating cost.
Reduced Consumable Cost
RA-4300A built-in reagent pumps are incredibly long-lasting, durable, and consistent in the delivery of reagents such as hydroxylamine hydrochloride, tin (II) chloride, and sulfuric acid with excellent consistency.
RA-4300A reagent pumps are operated as dosing mode, do not run continuously like those peristaltic pumps used in flow-technique, therefore extending its lifetime and maintenance frequency for both its tubing and motor.