Ohio Lumex Zeeman Mercury Analyzer








PRODUCTS Search
PRODUCTS | ACCESSORIES | PARTS

      RP-M324 Analyzer for "Direct" thermal analysis of Sorbent Traps for monitoring Hg emissions from coal-fired power plants

APPLICATION SAMPLES Types of analysis

RA-915+ with RP-M324 is designed for field on-site or laboratory “Direct” testing of carbon tubes for Sorbent Trap Monitoring of Hg emissions from coal fired power plants. US EPA validated thermal decomposition is referenced in appendices K part 75 of the Clean Air Mercury Rule. Atomic Absorption technology is used for no sample preparation analysis. Analysis time is less than 2 minutes per sample. No liquid chemicals or gas required, no chemical waste is generated.

In addition to Sorbent Traps, analyzer could be used for "Direct" testing of ash, coal, and Ontario Hydro method generated liquid samples. Mercury Speciation is available.
Multi point calibration protocol conforms to EPA Performance Based Criteria Method.

RA-915+ with RP-M324


Technology

A sorbent Trap tube is cut and sorbent is transferred onto a quartz ladle. The ladle is inserted into the analyzer thermo catalytic conversion chamber heated to 800°C wherein mercury is converted from a bound state to the atomic state by thermal decomposition in a two-section furnace.
This approach requires no preconcentration on gold eliminating the associated problems. The use of multipath cell combined with “dry” converter provides highest sensitivity with no interferences from the sample matrix. Mercury measurements take place in the heated cell zone of converter directly coupled to spectrometer. High temperature (800C) and short residence time prevents Mercury atoms from recombining with any “active” species generated due to high temperature decomposition of sample matrix. External pump is used to draw ambient air and purify it for combustion. No cylinders of oxidizer or compressed gases required. No "clean room" required. Easy to use, maintain and transport.

Results of 3X3 Spiked carbon tube assay analyzed by PR-M324
Sample Identification
Measured Concentration (ng)
Spike Amount (ng)
% Recovery
Average % Recovery
180 ng replicate #1
188.2
180.0
104.6
103.6
180 ng replicate #2
193.0
180.0
107.2
180 ng replicate #3
178.2
180.0
99.0
1400 ng replicate #1
1388.4
1400.0
99.2
94.6
1400 ng replicate #2
1274.3
1400.0
91.0
1400 ng replicate #3
1309.7
1400.0
93.6
3000 ng replicate #1
3030.0
3000.0
101.0
99.0
3000 ng replicate #2
3010.0
3000.0
100.3
3000 ng replicate #3
2870.0
3000.0
95.7

Technical specifications
Detection limits: 10 - 100,000 ng - mercury

10 ug/kg - 100 mg/kg - Hg concentration in sorbent, ash, coal, liquid "Ontario Hydro" impinger samples
Direct analysis (results in 2 minutes) for "small" and "large" US EPA Method 324 tubes
Calibration "Spike" your own tube by "direct" depositing NIST standard on sorbent
Attachment RP-91 for "spiking" tubes with Elemental Mercury by reducing NIST standard is available
Set-up or take-down time less than one hour
Utilities 220/110v/60Hz, 600Watt
Dimensions and weight 2 Rolling Pelican cases, total 60 lb
 




HOME | ABOUT COMPANY | PRODUCTS | APPLICATIONS | ANALYSIS TECHNIQUE | NEWS | CONTACT
 
Copyright © 2001 - 2006 OhioLumex Co. Design NDA Solaris