Guest blog post: Nobel Laureate Lectures at June 2015 #NESACS meeting

Guest Blog post by Jack Driscoll

Nobel Laureate W.E. Moerner Lectures at June 2015 NESACS Monthly Meeting by Dr. John " Jack" driscoll

Featured presentations by @pidgirl and @pidguy at #ACSboston 2015

Featured presentations by @pidgirl and @pidguy at #ACSboston 2015

See links below to access the presentation abstracts:

Sunday 8/16/15 Westin Boston Waterfront-Galleria 11am

SCHB track: SCHB is your link to ACS networks and resources

Sunday 8/16/15 BC&EC, Room: 50 2:30pm

HIST Track: Edwin Land and Instant Photography: A Panel Discussion

Monday 8/17/15 Renaissance BOS Waterfront Pacific Bllrm F 9:45am 

ANYL Track: Detection of ppb levels of arsenic in beers and wines

Monday 8/17/15 Renaissance BOS Waterfront Pacific Bllrm F 2:05pm

ANYL Track: Analysis of metals at sub ppb levels by HG-GC-PID

Monday 8/17/15 Renaissance BOS Waterfront Pacific Bllrm F 3:05pm

ANYL Track: Monitoring ppt levels of BTEX with a field portable GC-PID

Monday 8/17/15 BC&EC Hall C 6pm-8pm 

HIST Track: Edwin Land and instant photography: An ACS National Historic Chemical Landmark

Wednesday 8/19/15 Renaissance BOS Waterfront Atlantic Bllrm I  10:25am

ANYL track: Monitoring ppt levels of toxic contaminants with a field portable GC-PID

Wednesday 8/19/15 BC&EC Hall C 6pm-8pm

ENVR track: New technique for ppt levels of mercury in air and water

Analysis of metals at sub ppb levels by HG-GC-PID

ABSTRACT SYMPOSIUM NAME: Advances in Analytical Separations

ABSTRACT SYMPOSIUM PROGRAM AREA NAME: [ANYL] Division of Analytical Chemistry

CONTROL ID: 2213879

PRESENTATION TYPE: Oral

TITLE: Analysis of metals at sub ppb levels by HG-GC-PID Pacific Blrm F - Renaissance Boston Waterfront Publication Number: 164 *John Driscoll, pidguy@aol.com, *Jennifer Maclachlan, pidgirl@gmail.com. PID Analyzers, LLC, Sandwich, Massachusetts, United Statesm-2:25pm

AUTHORS (FIRST NAME, LAST NAME): John N. Driscoll2, Jennifer L. Maclachlan1

INSTITUTIONS (ALL): 1. PID Analyzers, LLC, Centerville, MA, United States. 2. PID Analyzers, LLC, Sandwich, MA, United States.

ABSTRACT BODY:  Abstract: Hydride generation (HG), is a relatively simple method that has been used to clean up and concentrate samples for more than 40 years. It was used primarily in combination with atomic absorption (AAS) spectroscopy & a liquid nitrogen trap to measure down to low ppb levels. This instrumentation has been replaced by more sensitive and expensive equipment like graphite furnace AAS or ICP/MS for the detection of sub ppb levels of metals. A number of papers have been published using gas chromatography- photoionization (GC/PID). This is a more sensitive method than AAS but a liquid nitrogen trap was still required. We have found recently that a capillary GC with an improved PID can replace the liquid nitrogen trap yet still provide sub ppb detection limits. The metals that we have been working with include: As, Pb, Cd, Se, Te, Sn, Fe… We have also developed a new static headspace method that simplifies the normal hydride generator, reduces the analysis time and provides a modest improvement in sensitivity with a very wide operating range. These new developments will be described in this presentation.