gc ms Articles

232 Results found

Quantitative Determination of Volatile Organic Compounds in Drinking Water by EPA Method with Headspace Trap GC-MS

by Shimadzu Scientific Instruments Inc  (Aug. 6, 2014)

Volatile Organic Compounds (VOCs) refer to a group of easily vapourised organic compounds. Under atmospheric pressure, these compounds boil below 250C. Studies have shown that prolonged exposure to the VOCs could increase the risk of various health problems, such as cancer. VOCs are commonly present in gasoline, dry cleaning solvents and ...

Wanted – $48 Trillion to Meet World Energy Needs to 2035

by GLOBE Foundation  (Jun. 3, 2014)

Meeting the world’s growing need for energy will require more than $48 trillion in investment over the period to 2035, according to a special report on investment released today by the International Energy Agency (IEA) as part of the World Energy Outlook series. Today’s annual investment in energy ...

Analysis of Pesticides in Baby Foods Using a GCMS-TQ8030 GC/MS/MS, Part II

by Shimadzu Scientific Instruments Inc  (Jul. 2, 2014)

Contamination of food products with pesticides is a growing concern because of recognized adverse health effects, increasing world-wide usage of pesticides, and increasing imports of raw foodstuffs from foreign sources. The concern is particularly acute for baby foods because of the high vulnerability of babies to health effects from synthetic ...

Analysis of Opioids Using Isotope Dilution with GCMS-TQ8030 GC/MS/MS

by Shimadzu Scientific Instruments Inc  (Jul. 2, 2014)

Development of methods for analysis of drugs of abuse has become a high priority for both forensic toxicology and law enforcement. The large numbers of individual drugs and new "designer drugs" has made method development for these compounds a significant undertaking. Gas chromatography mass spectrometry (GCMS) has been used extensively for ...

GC/MS analysis of a complex sample in DCM using hydrogen carrier gas

by Peak Scientific Instruments Ltd  (Jul. 2, 2014)

Labs worldwide have recently found that helium has been in short supply, leaving a number of labs without carrier gas. Added to this, helium prices have doubled over the past 10 years causing a number of labs to look into alternative carrier gases for GC, such as nitrogen and hydrogen. As well as lower price and unlimited availability, hydrogen ...

Analysis of Pesticides in Citrus Oil Using a Shimadzu GCMS-TQ8030

by Shimadzu Scientific Instruments Inc  (Jul. 2, 2014)

Contamination of consumer products with pesticides is a growing concern because of recognized adverse health effects, increasing world-wide usage of pesticides, and imports of raw materials from foreign sources. Citrus oils have been used for centuries for a wide range of applications: flavor/fragrance, various medicinal purposes, and others. In ...

Extraction & Analysis of PAHs in Olive Oil Using SupelMIP SPE – PAHs and GC-MS

by Sigma-Aldrich/Supelco  (Sep. 5, 2013)

Polyaromatic hydrocarbons (PAHs) consist of fused aromatic rings and are formed as a by-product during the combustion of fuels. Seven PAHs in particular are known for their carcinogenic properties: benz[a]anthracene, benzo[a]pyrene, benzo[b]fluoranthene, benzo[k]fluoranthene, chrysene, dibenz[a,h]anthracene, and indeno[1,2,3-cd]pyrene. As such, ...

airmoTWA: New Expert System for GC-FID/MS

by Chromatotec Group  (May 1, 2014)

Chromatotec has developed the first TRAP-GC-FID/MS designed for continuous monitoring of Volatile Organic Compounds (VOCs), inorganic molecules and permanent gases. In addition to the mass spectrometer (MS), this system encompasses the same trap, thermo desorption and separation technologies as airmoVOC analyzers (current mCERTS approved GCs ...

Analysis of Organophosphorus Pesticides in Baby Foods Using a Triple-Quadrupole GC/MS/MS System

by Shimadzu Scientific Instruments Inc  (Nov. 1, 2013)

Contamination of food products with pesticides is a growing concern because of recognized adverse health effects, increasing world-wide usage of pesticides, and increasing imports of raw foodstuffs from foreign sources. The concern is particularly acute for baby foods because of the high vulnerability of babies to adverse health effects from ...

Analysis of PCBs and Organochlorinated pesticides in river water using simultaneous Scan/MRM measurement in GC-MS/MS

by Shimadzu Scientific Instruments Inc  (Nov. 1, 2013)

PCBs and some chlorinated pesticides are resistant to decomposition in the environment, and tend to accumulate in living organisms. As a result, they are designated as POPs (Persistent Organic Pollutants) under the Stockholm Convention. In monitoring these environmental pollutants in river water and sludge, sensitivity for the detection of trace ...

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