triple quadrupole Articles
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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. ...
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http://saranalaboratorium.com/scion-instruments-application-note/
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 ...
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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 ...
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Quantitative LC-MS/MS Analysis of Microcystin Cyclopeptides: EPA Method 544
Accurate and sensitive characterization and quantification of a structurally diverse class of microcystin cyclopeptides was accomplished using UHPLC-MS-MS. In this analysis, microcystins-RR, YR, and LR were measured using a Nexera UHPLC with a LCMS-8050 triple quadrupole MS detector with ESI ionization in accordance with EPA Method 544. The results of this study show that the Shimadzu platform ...
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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 ...
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Analysis of PFAS Specified in EPA Method 537 and Beyond using Shimadzu UFMS
This application note demonstrates the use, performance, and compatibility of Shimadzu ultra-fast mass spectrometry for EPA Method 537 with an expanded compound panel of seven additional PFAS. A total of 27 PFAS were extracted, separated and detected with triple quadrupole mass spectrometers, LCMS-8045 and LCMS-8050. Recoveries of 86-106% (LCMS-8050) and 77-104% (LCMS-8045) were well within the ...
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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 ...
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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 ...
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High Throughput LC-MS-MS Analysis of Carbendazim in Orange Juice
Highly sensitive analytical methods are necessary to prevent contaminated produce from entering the food supply. In order to help move fresh imports through customs without delay, methods must be rapid and cost effective, in order to test imports thoroughly. LC-MS offers the highly sensitive, robust measurement needed, while ultra high performance liquid chromatography enables high speed ...
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Evaluation of Prohibited Dyes in Food : By An Automated Extraction
Abstract The Sudan dyes Sudan I, Sudan II, Sudan III and Sudan IV all belong to the compound group named Azo-dyes. The International Agency for Research on Cancer has listed these dyes to be considered a possible carcinogen. The EU has released a commission decision 2005/402/EC to ban such Sudan dyes as food additives. The goal of this project is to evaluate the performance and versatility of an ...
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Ultra-fast LC-MS/MS Analysis of PFAS in Environmental Samples
There is increasing concern about the persistence and effects of Per- and Polyfluorinated Alkyl Substances (PFAS) in the environment. This white paper summarizes the state-of-the-art analytical methods for monitoring PFAS and demonstrates the use, speed and performance of Shimadzu Ultra-fast Mass Spectrometry (UFMS) for PFAS analysis in environmental waters. The described method consists of a ...
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Determination of Selected ASTM Perfluorinated Compounds (PFCs) Using LC-MS/MS
ASTM methods D7968-14 and D7979-15 are used to determine the same list of PFCs but in different matrices. ASTM method D7968-14 lists soil as a matrix while ASTM method 7979-15 lists water, sludge, influent, effluent and waste water as matrix options. These methods use different extraction techniques but both evaluate the samples by liquid chromatography/tandem mass spectrometry (LC/MS/MS). We ...
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Improved Analysis of Polyfluorinated Alkyl Substances (PFAS) in Environmental Samples Using Optimized ASTM Method 7968/7979
There has been an increasing awareness of the presence of polyfluorinated alkyl substances (PFAS) in water. A simple and robust method with quick turn-around time to determine these compounds is essential to providing accurate responses in a timely manner. In the method presented here, direct injection without solid-phase extraction (SPE) allows us to maximize throughput and to minimize ...
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Identification of metabolites produced by Phanerochaete chrysosporium in the presence of amlodipine orotate using metabolomics
Pharmaceuticals are very useful in treating human diseases but they are excreted to the environment sometimes in their original form or as byproducts of human metabolism. Pharmaceuticals and their metabolites have been proven by studies to be harmful to non-target ecological species and may be persistent in different water matrices. In this regard, there is an emergent need to eliminate these ...
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Identification of metabolites produced by Phanerochaete chrysosporium in the presence of amlodipine orotate using metabolomics
Pharmaceuticals are very useful in treating human diseases but they are excreted to the environment sometimes in their original form or as byproducts of human metabolism. Pharmaceuticals and their metabolites have been proven by studies to be harmful to non-target ecological species and may be persistent in different water matrices. In this regard, there is an emergent need to eliminate these ...
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Analysis of Haloacetic Acids in Tap Water Using LC/MS/MS
Haloacetic acids are produced as by-products of chlorination in the water treatment purification process. Three haloacetic acids, monochloroacetic acid (MCAA), dichloroacetic acid (DCAA), and trichloroacetic acid (TCAA), are subject to water quality standard for drinking water with established limits (MCAA: 0.02 mg/L, DCAA: 0.04 mg/L, TCAA: 0.2 mg/L) by Japan Ministry of Health, Labour and ...
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Tof-HRMS: Rescuing low-exposure bioanalysis applications from chemical noise
The drug development process requires pharmacokinetic (PK) analysis to be performed as part of safety and efficacy studies in both preclinical species and human subjects. For high-sensitivity bioanalysis, liquid chromatography (LC) coupled to a triple quadrupole mass spectrometer (LC-MS/MS) is considered the gold standard for quantification. However, for some low-exposure applications, ...
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AutoMate-Q40 Automated QuEChERS Extraction for Pesticide Residues in Botanicals
Abstract QuEChERS is a Quick-Easy-CheapEffective-Rugged-Safe extraction method that has been developed for the determination of pesticide residues in agricultural commodities. Since its development, QuEChERS has been applied to many different classes of commodities ranging from fruits and vegetables to dry grains and teas. In 2007, the United States Food and Drug Administration (USFDA) announced ...
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Heterogeneous electro-Fenton oxidation of azo dye methyl orange catalyzed by magnetic Fe3O4 nanoparticles
Azo dye methyl orange (MO) degradation by heterogeneous electro-Fenton (EF) with a magnetic nano-Fe3O4 catalyst was investigated. In this study, Fe3O4 was synthesized by a coprecipitation method and characterized by X-ray diffraction and scanning electron microscopy. The influences of the main operating parameters such as current density, pH, catalyst dosage and aeration rate were studied. ...
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