OhioLumex Co. RA915+ Mercury Joseph Siperstein Mercury Spill Response Workshop Lansing, Michigan

MERCURY DETERMINATION mercury content in ambient air, detecting mercury spills mercury determination in aqueous samples, EPA method 1631 direct (no digestion) analysis of soil,complex matrixes, EPA method 7473 mercury monitoring for indoor air (‘Instant’ NIOSH 6009 results) mercury determination in natural gas or industrial emmisions monitoring FIELD or LABORATORY APPLICATIONS with RA Air – 2 ng/m 3 range mg/m 3 liquids – 0.5 ng/l solids – 0.5 µg/kg background correction Zeeman effect with HF polarization modulation size and weight 460x210x110 mm; 7.5 kg power supply 220/110 Vac, 50/60 Hz; 10/14 Vdc RP91 RP91C RA 915+or “Light”

DIRECT MERCURY DETERMINATION IN THE FIELD MERCURY DETERMINATION with RA Gas production site Landfill siteSpill ANALYTICAL INSTRUMENTATION

MERCURY DETERMINATION FIELD LABORATORY Insertion of a sample in the instrument. Analysis time 1 minute. No autosampler required. Throughput up to 30samples per hour.

MERCURY DETERMINATION with RA ANALYTICAL INSTRUMENTATION MERCURY DETERMINATION with RA Multifunctional mercury spectrometer Due to the low power consumption (15 W) and low weight (16 Lb. with built-in batteries) the spectrometer can be used for mercury determination in air and natural gas, samples of soils, rocks, water in laboratory as well as in field conditions. FIELD MERCURY VAPOR “SNIFFER” FIELD MERCURY VAPOR “SNIFFER”

ANALYTICAL INSTRUMENTATION MERCURY DETERMINATION with RA Real Time mercury Spectrometer with Zeeman correction for interferences. 2. Lowest Detection Limit, 2ng/M 3 3. Real time measurements with MS Windows dataloging. 4. Wide measurement range, mg/M 3 5. Field performance verification cell 6. Simple to operate 7. Low maintenance with 48 hours repair/replacement policy

ANALYTICAL INSTRUMENTATION MERCURY DETERMINATION with RA No Effect of interfering gases Gases in (high) concentration have no interfering effect exceeding 100 ng/m3 or mg/m3.

ANALYTICAL INSTRUMENTATION MERCURY DISTRIBUTION IN AIR MERCURY DETERMINATION Mercury distribution along the profile crossing the area of an unidentified ore mine and a smelter. M –mine C – central part of mine S – smelter W – waste dump Figure shows the results of mercury determination along the profile of a mine, smelter and a waste dump. The RA analyzer was placed in a car, and ambient air was continuously pumped through the instrument at a rate of 20 l/min. As can be seen, with the speed of the car at about 35mph, two high peaks were detected in the central part near the mine, smelter, and dumps. C, ng/m 3 with RA Time, sec

ANALYTICAL INSTRUMENTATION MERCURY DETERMINATION with RA Performance characteristics and field study examples of three indoor air mercury measurement methods. Swartzendruber, P. and Prestbo, E.M. Frontier Geoscience, USA (poster) - 6th International conference on mercury as a global Pollutants, , Minamata, Japan. Lumex RA 915+ vs. Tekran 2537

No sample preparation “DIRECT” testing of FISH samples, results in 30 seconds! MERCURY DETERMINATION with RA-915 +

ANALYTICAL INSTRUMENTATION MERCURY DETERMINATION IN THE AQUEOUS SAMPLES MERCURY DETERMINATION Time, sec S, arb.un with RA – 2 ng/l, 6-8—10ng/l Calibration Mercury concentration, ppt S, arb.un Detection limit 0.2 ppt

MERCURY DETERMINATION to Lumex Clancy-a Zeemanless competition to Lumex with RA Clancy, the first US mercury sniffing dog employed at the Minnesota Pollution Control Agency. Lumex RA 915 analyzer present on the right.