gc ms Articles

219 Results found

Doubling the SRF production capacity with TANA Shark

by Tana Oy  (Sep. 24, 2014)

A company in France operating in landfill, waste management and fuel production businesses produces SRF (Solid Recovered Fuel) from unsorted industrial waste for their own mill. The key for improving productivity of all these three business areas is a more effective shredding process to increase the low SRF production capacity. TANA ran a ...

GC-MS Analysis Agricultural Pesticides on the SLB-5ms

by Sigma-Aldrich/Supelco  (Dec. 31, 2006)

This application illustrates the analysis of 29 different agricultural pesticides of different classifications and functionalities, using the SLB-5ms, 30 m x 0.25 mm I.D., 0.25 μm  The analysis was done by GC-MS using selected ion monitoring (SIM) to allow detection of all compounds at 100 µg/L. The standard solution was made in ...

GC-MS Analysis of Polychlorinated Dibenzodioxins and Polychlorinated Dibenzofurans

by Sigma-Aldrich/Supelco  (Jun. 5, 2012)

Polychlorinated dibenzodioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) consist of 210 different compounds with varying degrees of toxicity, and the 17 congeners with chlorine substitution in the 2,3,7,8 positions are considered the most toxic. This chromatogram illustrates the separation of a 17 component 2,3,7,8-substituted PCDD and ...

Quantitative Analysis of Volatile Organic Compounds by GC-MS

by American Water Works Association (AWWA)  (Nov. 1, 1977)

Some results of the National Organics Reconnaissance Survey include quantitative analysis of nine volatile organic compounds by gas chromatography-mass spectrometry with a computerized data system. A purging device, trap, desorber, instrumentation, blank water, internal standard, data acquisition parameters, effects of temperature and salt ...

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 ...

US EPA Method 625 Semivolatiles by GC-MS on the Supelco SLB™-5ms

by Sigma-Aldrich/Supelco  (May 11, 2012)

  Application Report 473: US EPA Method 625 describes the procedure for the analysis of industrial and municipal waste water samples by GC-MS. This analysis illustrates the separation of the single-peak base-neutral and acid compounds listed in the method, along with commonly used surrogates and internal standards. ...

US EPA Method 525.2 Semivolatiles by GC-MS on the Supelco SLB™-5ms

by Sigma-Aldrich/Supelco  (Dec. 31, 2008)

US EPA Method 525.2 describes the procedure for the extraction and analysis of semivolatile organic compounds from drinking and source water. The compound list includes polynuclear aromatics, phthalates, pesticides, and polychlorinated biphenyls.  This application illustrates the separation of a majority of the single peak analytes listed in ...

Fast GC-MS Analysis of US EPA Method 8270D Semivolatiles Using Supelco SLB-5ms

by Sigma-Aldrich/Supelco  (Dec. 31, 2006)

US EPA Method 8270D specifies a procedure for the determination of semivolatiles in solid waste and ground water samples. The method specifies that all analyses must be completed within 12 hours of meeting specific MS tune criteria. In this application, the principles of fast GC were applied to analyze a typical 8270 analyte list in under 8.5 ...

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 ...

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, ...

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