Mercury Analyzer for Gas Mercury/WA-4

NIC Product

Mercury Analyzers

Mercury Analyzer for Gas Mercury/WA-4

	Model WA-4 is a highly sensitive gold-amalgamation, cold vapor atomic absorption portable analyzer which can be utilized for both gas and liquid analysis. It can measure mercury down to 0.01ng and enables immediate on-site sampling and analysis with just a power source - no need for purified bottle gases (aqueous sample can also be analyzed with just simple impinger setup via stannous reduction).
WA-4

Principle of Operation

Mercury in gaseous sample is collected via gold amalgamation using sampling pump and mercury trap tube. The sampled tube is set into the WA-4, desorbed and trapped onto another gold-amalgamation trap in WA-4. This second amalgamation process ensures and purifies the mercury before desorbs and transfers into CVAA (253.7nm) for quantification. WA-4 is applicable for both hydrocarbon gases and environmental air analysis.

NIC offers High-Pressure Sampling Probe (intrinsically-safe) for on-site natural gas sampling for mercury onto mercury trap tubes, which ensures representatives sampling to avoid mercury absorption especially when they transferred via additional medium like Stainless Steel Bombs and etc.

WA-4 can be setup for aqueous analysis too. Set in impinger, they are reduced using stannous chloride and trapped via gold-amalgamation which later desorbed automatically and quantifies via CVAA.

WA-4 is in compliance with USEPA method 1631e, and is a highly versatile analyzer for on-site analysis for both liquid and gaseous analyzer.