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Showing posts from June, 2014

California Air Monitoring: From Inception to Current Trends in the New Millennium

ENVR POSTER SESSION: Wednesday evening August 13, 2014 6pm California Air Monitoring: From Inception to Current Trends in the New Millennium
J. Maclachlan, Organizer; J. Driscoll, Organizer; J. Maclachlan, Presiding Papers 586-587 Title:Monitoring and control of pump  and treat systems in gasoline stations
Abstract Body: One of the most serious contamination problems in LA in the early 2000's was leaking from underground gasoline storage tanks. At high levels of VOC's (thousands of ppm), the pump and treat effluent can simply be flared. At about 1,000 ppm, it requires too much auxiliary fuel to burn the effluent. A new collection system such as a carbon bed is required. Continuous monitoring is required to determine when breakthrough of the VOC's occurs. Then, the carbon bed should be changed.
The most popular technique for carbon bed monitoring is photoionization and the 112 instrument includes a programmable setpoint that shuts down the pump allowing the carbon bed to be chan…

New England Local Section of the American Industrial Hygiene Association (NEAIHA) June Technical Meeting

New technique for the detection of ppb levels of lead in drinking water by HG/GC/PID

Sunday Morning August 10, 2014 

ACS DIVISION OF ANALYTICAL CHEMISTRY
ANYL ORAL SESSION: Advances in Separation 
Title:New technique for the detection of ppb levels of lead in drinking water by HG/GC/PID
Presenting author:
Jennifer Maclachlan
Contributing Author: Jack Driscoll


Abstract Body: The EPA has recently reduced the action level for lead in drinking water from 25 ppb to 15 ppb. Since Pb+4 forms a stable hydride that has an ionization potential of >10 eV, it can be detected using a photoionization detector (PID) with a lamp energy of 10.6 eV. We have shown previously (1) that hydride generation PID can be used to detect arsenic in well water at sub ppb levels. We have modified that method by using H2O2 to oxidize any Pb+2 to Pb+4. We are now able to detect total Pb in water down to 1 ppb. The hydride generation minimizes any sample preparation, the new PID improves the detection limit by 3-10 fold, and the GC is used to separate the PbH4from other metal hydrides and their organic co…

ACS Chemical Innovation and Entrepreneurship Council role in job creation

Tuesday, August 12, 2014 10:20 AM
The Role of Entrepreneurship, Innovation, and Economic Development in Sustainability (08:30 AM - 12:40 PM)
BMGT Track
Cosponsored by MPPG and SCHB

Location: Moscone Center, North Bldg. San Francisco, CA
Room: 132


11 - ACS Chemical Innovation and Entrepreneurship Council role in job creation

Judy Giordon, Janet Bryant, Lisa Kemp, Jennifer Maclachlan, John R. Vercellotti, Carlyn BurtonecosVC, Pelham, MA 01002, United States

The ability for chemists to develop and communicate the value of their research as solutions for addressing challenges and opportunities faced by people and the planet is critical for 1) expanding personal professional development and career opportunities, 2) creating economic development and jobs, and 3) for demonstrating the value of chemistry – the central science! The Chemical Innovation and Entrepreneurship Council (CIEC) was formed to ensure that all members of the ACS – regardless of career stage or aspirations – have the opportuni…

Environmental and process measurements in fracking operations with a portable gas chromatograph

PRESIDENTIAL SYMPOSIUM at #ACSsanfran
Update: Read coverage from American Laboratory Magazine on this symposium here: ACS Addresses Fracking and Sustainability
We presented on day one of this two day symposium on the ENVR track
cosponsored by the Committee on Environmental Improvement (CEI)

Tuesday afternoon August 12, 2014 at 4:20pm 

ACS DIVISION OF ENVIRONMENTAL CHEMISTRY SESSION: Evolving Science and Environmental Impacts of Hydraulic Fracturing  D. Drogos, Organizer; T. Barton, Organizer; D. Drogos, Presiding Papers 377-384
ENVR-Presidential Symposia Title:Environmental and process measurements in fracking operations with a portable gas chromatograph


Authors:Jack Driscolland Jennifer Maclachlan  Abstract Body: The use of horizontal drilling and hydraulic fracking of shale has catapulted the US into one of the leading producers of natural gas in 2012. The producers are interested in the natural gas composition (C1 to C6 hydrocarbon and BTU content). Local Environmental Agencies will be concern…

Real Time Detection Systems and The Industrial Hygienist: An #Ignite Presentation at #AIHce 2012

Click on this link to see Jack Driscoll's Real Time Detection Systems and The Industrial Hygienist Ignite Presentation in this #AIHce 2012 Ignite Presentation.

Access the FULL presentation on You Tube below.