Showing Results for
- Academic Journals (18)
Search Results
- 18
Academic Journals
- 18
-
From:Forensic Science International (Vol. 153, Issue 2-3) Peer-ReviewedTwo men were found dead near the island of Samos, Greece, in the Mediterranean sea. The estimated time of death for both victims was 3-4 weeks. Autopsy revealed no remarkable external injuries or acute poisoning. The...
-
From:Power Engineering (Vol. 102, Issue 3) Peer-ReviewedRemoving organic contaminants from soil is a major concern in remediation efforts at tens of thousands of hazardous waste sites across the country. Present ex situ remediation methods are often expensive and involve...
-
From:PLoS ONE (Vol. 15, Issue 6) Peer-ReviewedAuthor(s): M. Sörengård *, A-S. Lindh, L. Ahrens 1. Introduction Per- and polyfluoroalkyl substances (PFASs) are a large group of partially or completely fluorinated organic compounds that vary in structure and...
-
From:LC-GC North America (Vol. 28, Issue 9) Peer-ReviewedBurning mosquito coils to repel these pests is common in many countries; however the emission of various, potentially toxic volatile organic compounds (VOCs) is cause for concern. Novel sampling equipment with TD-GC-MS...
-
From:LC-GC North America (Vol. 34, Issue 6) Peer-ReviewedThe xr1 thermal desorption instruments for GC-MS from Markes International are designed to preconcentrate organic vapors sampled using sorbent tubes, canisters, and on-line air streams. According to the company,...
-
From:LC-GC North America (Vol. 18, Issue 9) Peer-ReviewedThermal desorption sampling often provides a means for bringing otherwise intractable samples to a gas chromatography column for separation and detection. In this month's "GC Connections," John Hinshaw describes the...
-
From:LC-GC North America (Vol. 34, Issue 1) Peer-ReviewedThermal desorption sampling often provides a means for bringing otherwise intractable samples to a gas chromatography (GC) column for separation and detection. In this installment, John Hinshaw describes the principles...
-
From:Journal of the Air & Waste Management Association (Vol. 58, Issue 2) Peer-ReviewedABSTRACT Recent improvements in integrated and continuous [PM.sub.2.5] mass and chemical measurements from the Supersite program and related studies in the past decade are summarized. Analytical capabilities of the...
-
From:Journal of Analytical Chemistry (Vol. 69, Issue 12) Peer-ReviewedThe thermal desorption of mercury from the solid phase coupled with atomic absorption spectroscopy (AAS) is useful and simple method of mercury speciation analysis of the environmental samples. The present work is...
-
From:Ground Water (Vol. 40, Issue 2) Peer-ReviewedThe desorption of contaminants from soils/sediments is one of the most important processes controlling contaminant transport and environmental risks. None of the currently adopted desorption models can accurately...
-
From:LC-GC North America (Vol. 32, Issue 3) Peer-ReviewedThe 7500 TD autosampler from CDS Analytical is designed as an extension of the company's 7400 purge-and-trap autosampler. According to the company, the autosampler has the ability to change between TD tubes for air and...
-
From:Canadian Journal of Chemistry (Vol. 84, Issue 6) Peer-ReviewedAbstract: We report in this study the synthesis, crystal culture, and single-crystal X-ray crystallography of two new kinds of double stilbene, which were readily prepared from trinitro-p-xylene and p-tolualdehyde in...
-
From:Science (Vol. 236) Peer-ReviewedCatalysis: New Perspectives from Surface Science THE APPLICATION OF MODERN SURFACE SCIENCE TECHniquesto fundamental catalytic studies has advanced our understanding of elementary surface reactions at the atomic level...
-
From:Proceedings of the North Dakota Academy of Science (Vol. 56) Peer-ReviewedIn 1998, there were nearly 63 million tons of coal combustion fly ash produced in the United States. Approximately 21.1 million tons was utilized, and the rest (41.9 million tons) was disposed generally in large...
-
From:LC-GC North America (Vol. 32, Issue 4) Peer-ReviewedAn automated multidesorption mode for Gerstel's TDS thermal desorption system and TDU thermal desorption unit is designed to enable desorption and concentration of a user-specified number of samples for each GC-MS run,...
-
From:LC-GC North America (Vol. 34, Issue 3) Peer-ReviewedThis study describes the recovery of compounds above the boiling point of naphthalene achieved by optimizing the thermal desorption chemistry for the determination of volatile organic compounds ranging from [C.sub.3] to...
-
From:International Journal of Analytical ChemistryPeer-ReviewedTrimethylsilanol (TMSOH) can cause damage to surfaces of scanner lenses in the semiconductor industry, and there is a critical need to measure and control airborne TMSOH concentrations. This study develops a thermal...
-
From:LC-GC North America (Vol. 37, Issue 1) Peer-ReviewedThe CDS Analytical 7550S is designed as a stand-alone 72-position autosampler. According to the company, the autosampler is capable of 3D positioning within 1 min, andean use any 1/4-inch OD x 31/2 -inch L, as well as...