GC-MS-MS Articles | Environmental XPRT

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A method for analysis of 258 pesticides has been developed on Scion TQ triple quadrupole mass spectrometer. The method setup is streamlined with the new software approach of Compound Based Scanning (CBS). The matrix-matched calibration results have demonstrated good sensitivity, linearity and precision of Scion TQ. This application note describes a GC-MS/MS method for detection of 258 ...

Aug. 8, 2017

By PT. SaranaLab Mandiri Analitika

Determination of Organochlorine Pesticides and Polychlorinated Biphenyls Using GC/MS/MS Operated in the MRM Mode

This paper describes use of a triple quadrupole GC/MS/MS method using Multiple Reaction Monitoring (MRM) mode for sensitive and selective detection and quantitation of Organochlorine pesticides and PCBs. A database with optimized MRM transitions for all of the OCPs and PCBs, including relative retention times for all components, makes method setup possible within minutes. The use of GC/MS/MS MRM ...

Jun. 20, 2017

By Shimadzu Scientific Instruments Inc

Analysis of PBDEs in Sediment Using GC-MS/MS

Polybrominated diphenyl ethers (PBDEs) are brominated flame retardants (BFRs) widely used in plastics. Due to their toxicity and persistence, their industrial production is to be eliminated under the Stockholm Convention. Contamination from PBDEs is widespread in the environment, including in sediments. In order to determine PBDEs in sediments, they need to be separated from a large amount of ...

Nov. 19, 2012

By Shimadzu Scientific Instruments Inc

Analysis of Aroclor and Organochlorine Pesticides in Ground Water using Triple Quadrupole GC-MS/MS

USEPA method 608 is a GC-ECD method to determine Aroclor and organochlorine pesticides. This method requires the use of second column for confirming the detected compounds due to the low selectivity of the ECD detector compared with GC-MS/MS. Also pattern recognition is required for accurate identification of Aroclors. A triple quadrupole GC-MS/MS based method offers a solution for the GC-ECD ...

Nov. 1, 2019

By Shimadzu Scientific Instruments Inc

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

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 synthetic chemicals, particularly pesticides. ...

Nov. 1, 2013

By Shimadzu Scientific Instruments Inc

Extraction of Spices using the SpeedExtractor E-916 for the Determination of Pesticides

This application note describes a fast and reliable way to extract organochlorine and other pesticides in chilli and paprika spice samples with the SpeedExtractor E-916. After the extraction the extract was cleaned up via GPC and analyzed by GC-MS/MS. The extraction of pesticides from a chilli and a paprika sample carried out with the SpeedExtractor E-916 showed comparable results to those ...

Oct. 3, 2011

By BÜCHI Labortechnik AG

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

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 recent years, new uses of citrus oils as cleaners ...

Jul. 2, 2014

By Shimadzu Scientific Instruments Inc

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

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 analysis of drug residues and trace-level drugs in ...

Jul. 2, 2014

By Shimadzu Scientific Instruments Inc

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

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 chemicals such as pesticides. Gas chromatography ...

Jul. 2, 2014

By Shimadzu Scientific Instruments Inc

GC-MS/MS Analysis of Pesticides in Drinking Water

According to Japan’s list of drinking water quality control substances, pesticides are included as supplemental items subject to analysis. Designed to complement the standards, the Ministry of Health, Labour and Welfare encourages water utilities to monitor pesticide levels and achieve specified targets. Among the 102 listed pesticides, 84 are simultaneously analyzed using solid-phase ...

Oct. 2, 2014

By Shimadzu Scientific Instruments Inc

GC-MS/MS analysis of PAH and PCB in environmental samples

The polychlorinated biphenyls (PCB) and polyaromatic hydrocarbons (PAH) are among the most commonly analysed compound classes in environmental analysis. This article demonstrates how hydrogen carrier gas can be used in place of helium for GC-MS/MS analysis of these compounds. Analysis of polyaromatic hydrocarbons (PAH) is typically conducted using HPLC with UV- and fluorescence detection. ...

Apr. 20, 2015

By Peak Scientific Instruments Ltd

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

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 quantities and separation from impurities in the ...

Nov. 1, 2013

By Shimadzu Scientific Instruments Inc

Solid-phase extraction and gas chromatography-tandem mass spectrometry method for the simultaneous determination of several pesticides in water

Contamination of surface and groundwater sources with pesticide residues has been of great concern for a long time and it is a major challenge for the preservation and sustainability of the environment. In order to accomplish the requirements of the European Directive 98/83/EC, we developed and validated an analytical method based on the combination of gas chromatography and tandem quadrupole ...

Aug. 1, 2010

By IWA Publishing

Metals and organic pollutants in snow surrounding an iron factory

Abstract To estimate air pollution snow samples were collected in March 2001 at six sites in the vicinity of the Kostomuksha factory in Karelia. Seventy-two chemical elements and more than 200 individual organic compounds were identified by inductively coupled plasma mass spectrometry (ICP-MS) and gas chromatography mass spectrometry (GC-MS). It was found that the levels of Li, B, Al, Fe, Ni, Cu, ...

Jan. 23, 2003

By Springer-Verlag GmbH

Probabilistic analysis of risks to U.S. drinking water intakes from 1,4‐dioxane in domestic wastewater treatment plant effluents

The risks of 1,4‐dioxane (dioxane) concentrations in wastewater treatment plant (WWTP) effluents, receiving primarily domestic wastewater, to downstream drinking water intakes was estimated using distributions of measured dioxane concentrations in effluents from 40 WWTPs and surface water dilution factors of 1,323 drinking water intakes across the U.S. Effluent samples were spiked with an ...

May 24, 2013

By John Wiley & Sons, Ltd.

Meeting the expanding needs of global food testing: Analysis of pesticides in vegetable matrix using triple quadrupole GC-MS/MS

Globally ensuring the reliability of food onour table with food testing solutions. Globalization of food supplies has renderedfood testing a major challenge for manufacturersand other businesses; contamination and spoilingincidents have fuelled media coverage, as well asraising consumer concerns. Government andregulatory agencies such as the European Commission (EU), the US Food and Drug ...

Nov. 1, 2011

By Bruker Corporation

GC/MS-SIM-An option for lower detection limits

Select Ion Monitoring mode (GC/MS-SIM) is a technique used to perform low level GC/MS measurements of organic compounds. GC/MS-SIM can reduce reporting limits 10-100 fold and can minimize the effects of matrix interferences. ...

Jul. 16, 2013

By Curtis & Tompkins Laboratories

2006-2016: 10 years of continuous dioxins monitoring in Italy. Which assessment for which perspective?

2006-2016: 10 years of continuous dioxins monitoring in Italy. Which assessment for which perspective? Polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF), more commonly named dioxins and furans are odorless, highly thermally stable, insoluble in water, highly liposoluble micropollutants present in traces in the environment, mainly produced during combustion with ...

May 24, 2018

By Environmental Technology Publications Limited

Comparison of the photoconversion of para-chlorophenol under simulated sunlight and UV irradiation in ice

The photochemistry of para-chlorophenol (4-CP) was studied under simulated sunlight (λ > 300 nm) and UV irradiation by using a 125 W high-pressure mercury lamp with or without a hard glass as light source in an ice matrix. The experiments were carried out in a photochemical cold chamber reactor at −14 to −12 °C. The photoconversion rate, photoproducts and photoconversion mechanism of 4-CP were ...

Jan. 1, 2011

By IWA Publishing

Pharmaceutical concentrations in screened municipal wastewaters in Victoria, British Columbia: A comparison with prescription rates and predicted concentrations

Pharmaceuticals and personal care products (PPCPs) are emerging chemicals of concern detected in surface waters globally. Recent reviews advocate that PPCP occurrence, fate, and exposure need to be better predicted and characterized. The use of pharmaceutical prescription rates to estimate PPCP concentrations in the environment has been suggested. Concentrations of 7 pharmaceuticals ...

Jan. 22, 2016

By John Wiley & Sons, Ltd.