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114 matches found for gas_chromatography_mass_spectrometry

SupelMIP® Literature & References

Title Molecularly Imprinted Polymer Overview SupelMIP SPE Brochure (981 Kb PDF) The Selective Extraction of Chloramphenicol using Molecularly Imprinted Polymer SPE, Shimelis O, Trinh A, Brandes H, US Supelco Reporter, 25.1 (482 Kb PDF) Analysis of analytes - The use of MIPs in solid-phase extraction...

Development and Manufacturing Highly Potent APIs

SAFC’S leading position in the fast-growing Highly Potent Active Pharmaceutical Ingredients (HPAPI) market includes conjugation of HPAPIs to antibodies for exciting new anti-cancer drugs. HPAPIs are proven to be effective at much smaller dosage levels than traditional APIs, but their potent characte...

Webinar: SPME Applications in Food Analysis by Means of a New Matrix Compatible Coating.

Duration: 75 minutes The complexity and diversity food matrices and the need for clean extracts to be injected into analytical instrumentation may imply the use of tedious and time-consuming sample preparation strategies that often are a source of a significant amount of laboratory waste. The develo...

Allergenic Fragrance Testing – New Certified Reference Materials and GC-FID/GC-MS Application

Last year, the International Fragrance Association (IFRA) published a new method1 for the testing of 57 potentially allergenic fragrance compounds in response to an opinion by the European Scientific Committee on Consumer Safety (SCCS), which also proposed to correspondingly amend EC regulation No. ...

Gas Chromatography Literature

NEW! GC Workflow Guide NEW! Ionic Liquid GC Literature NEW! Fast GC Literature Pub. Id. Subject Type Size (KB) No. of Pages Frequently Requested Literature T407133 GC Column Selection Guide Brochure 884 24 T407096 Fast GC Brochure Brochure 3,444 28 JXB Dioxin & PCB Analysis Brochure 2,054 16 T407123...

SuperClean™ Purifiers, Base-Plate Design

Robert F. Wallace bob.wallace@sial.com Contaminants such as water and oxygen can enter carrier or other gas streams, adversely affecting the performance of a gas chromatographic system. UHPgrade gas normally contains less than 10 ppm of moisture and oxygen. Even though these concentration levels are...

cGMP Manufacturing – SAFC - Buchs

SAFC Buchs, Switzerland specializes in complex, multi-step, organic custom synthesis of intermediates and raw materials from Phase I to Phase III clinical trials. This cGMP, ISO certified site provides a wide range of development and production capabilities, including Simulated Moving Bed (SMB) chro...

Analysis of Pesticide Residues in Ginger Powder Using QuEChERS Extraction and Clean-up with a Novel Dual Layer SPE Cartridge

Analytix Reporter Issue 6 | 2019 Related Products • View Product List • Supelclean™ Ultra SPE • Solvents • SLB® GC Columns • Ascentis® Express HPLC Columns • QuEChERS Products • Pesticide Reference Materials Related Links • Pesticide Analysis • Food & Beverage Analysis Related Articles • Analysis of...

SPME in the Analysis of Illicit Drugs

Related Articles • SPE Method to Eliminate Matrix Effect in Analysis of NBOMe Hallucinogens from Urine • Utilizing Novel SPME LC Tips for Forensic Screening of Drugs of Abuse in Urine Samples • A Tryptamine Comeback: Interest Beyond Illicit Use • LC-MS of Illicit Bath Salts in Urine • Accelerated Bi...

The Best Approaches to Gas Purification

Robert F. Wallace bob.wallace@sial.com Even with the use of ultra-high purity gases, contaminants may be present that will shorten column life and/or adversely affect chromatographic performance. To guard against this, gas management/delivery systems must contain components designed to eliminate the...

‘Positive List’ Chemicals by GC-MS on the SLB-5ms

Related Articles • Dual-Column GC Analysis of Organochlorine Pesticides on SLB-5ms and SLB-35ms Katherine K. Stenerson, Takeyoshi Ide1, and Michael D. Buchanan mike.buchanan@sial.com 1. Sigma-Aldrich, Tokyo, Japan In May of 2006, the Japan Ministry of Health, Labour and Welfare (MHLW) introduced reg...

Using SPME in the Analysis of Drugs of Abuse

Related Articles • Chiral Analysis of Levamisole and its Metabolite, Aminorex, for Monitoring Abuse in Horse Racing and Cocaine Adulteration • Utilizing Novel SPME LC Tips for Forensic Screening of Drugs of Abuse in Urine Samples • Accurate Biological Testing for Amphetamine and Methamphetamine Abus...

Approaches to the Analysis of the Oregon List of Pesticides in Cannabis Using QuEChERS Extraction and Cleanup

Consumption of cannabis and / or cannabis-based products is currently legal in some form in 33 US states plus the District of Columbia. Testing of the plant materials and products is required by many of these states; however the specific test methods and target compound lists are not mandated in all...

Recovery & Sample Cleanup of Pesticides in Spinach Using Supelclean ENVI-Carb-II/PSA SPE

Related Articles • Extraction of Permethrin Pesticides from Spinach Using QuEChERS Methodology with Automated Shaking • Extraction and Analysis of Neonicotinoid Pesticides from Flower Blossoms • Rapid Cleanup of Spinach Extracts Using Gravity Elution SPE Prior to Pesticide Analysis • Increase Remova...

Reporter Europe 2010

Archive Reporter Europe 2016 Reporter Europe 2015 Reporter Europe 2014 Reporter Europe 2013 Reporter Europe 2012 Reporter Europe 2011 Reporter Europe 2010 Reporter Europe 2009 Reporter Europe 2008 Reporter Europe 2007 Reporter Europe 2006 Dear Scientist, TheReporter USA Let us help you. The new Repo...

Reporter - Supelco Chromatography newsletter

In publication since 1982, the Reporter newsletter provides information on our innovations and new products relating to HPLC, GC, Chiral Chromatography, Sample Preparation/Handling, and other chromatography topics. This 24-page print version is published 5 times a year, and contains full-length arti...

Ultratrace Determination of Aroma-Active Thiols by Automated Headspace Solid-Phase Microextracion With In-Fiber Derivatisation and GC-ECD and GC-MS-NCI

Laura Mateo-Vivaracho, Vicente Ferreira and Juan Cacho, Departamento de Química Analítica, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, España Thiols very often have strong odors. Low molecular weight members are extremely unpleasant, but some higher molecular weight members at low...

Analytix Reporter – Analytical Journal

Featured Article • Titration 4.0, SmartChemicals View Archived Issues • Analytix • The Reporter Sign Up Subscribe here to receive your copy of Analytix Reporter. Analytix Reporter Issue 6 | 2019 Download PDF Science & Technology Innovations • Titration 4.0 - SmartChemicals Improve Titration Data Int...

Radiello Diffusive Sampler for Monitoring 1,3-Butadiene and Isoprene in Workplace Air

The following was generated by an outside source using Sigma-Aldrich products. Technical content provided by: Paolo Sacco Fondazione Salvatore Maugeri, Padova/Italy, psacco@fsm.it The manufacturing of elastomers makes wide use of 1,3-butadiene (CAS No. 106-99-0) and isoprene (2-methyl- 1,3-butadiene...

Agriculture | Crop Protection Workflow

Pesticides are an essential component in modern agriculture and enable growers to fully realize the yield potential of their seeds. From compound discovery to active ingredient development, our chemistry capabilities support you across your entire crop protection workflow so you can discover and dev...

Veterinary Drug Residues

Related Articles • Molecularly Imprinted Polymer SPE for the Highly Selective Extraction of Fluoroquinolones from Bovine Kidney • Extraction of Nitroimidazoles from Milk and Eggs using Molecularly Imprinted Polymers Related Links • Analytical Standards, Antibiotics • Certified Reference Materials (C...

Melamine and Related Compounds in Dog Food Using GC-MS

Related Articles • Fast Extraction and Low Level Detection of Chloramphenicol in Shrimp • Extraction and Analysis of PAHs from Grilled Hamburger Melamine contamination in food became an issue in recent years after the discovery of it, and related compounds, in pet food and baby formula. It was disco...

PCBs & Dioxins - Chromatography and Sample Prep Literature from Supelco

Pub. Id. Subject Type Size (KB) No. of Pages JXB Dioxin & PCB Analysis Brochure 1,000 16 T704007 Instructions for Supelco Dioxin Prep System with Multi-Layer Silica Gel Column Product Info 321 8 T100817 Analyses of Polychlorinated Biphenyl (PCB) Mixtures and Individual Congeners by GC Bulletin 817 2...

SPME Method Development Webinar

Duration: 60 minutes This webinar will shed light into several aspects of SPME method development. The presentation will include a theoretical explanation of SPME fundamentals and practical suggestions to overcome common errors and bias encountered when using SPME. The webinar is divided in three ma...

Silanes - Applications of Deposition Grade Silanes

Sol-gel processing is beneficial in the formation of ceramic and glass films for a number of reasons.1-4 It is a simple process that does not require exotic materials, catalysts or expensive deposition equipment. Sol-gel reactions do not employ extreme reaction conditions and the properties of the m...

Sample Prep Resolves Difficult Sample Matrix Problems

Also on this page: Extraction of Flavor Components from Orange Juice Extraction of Sulfur Compounds from Saliva References In the flavor and fragrance industry, analytical chemists are often required to isolate key ingredients, off-flavor components, or trace organic compounds from their sample matr...

Method Validation for Determination of Chloramphenicol in Urine Using Molecularly Imprinted Polymer (MIP) SPE

• • Download PDF • Rejtharová Martina, Rejthar Libor rejthar@uskvbl.cz Institute for State Control of Veterinary Biologicals and Medicaments, Hudcova 56a, CZ 621 00 Brno, Czech Republic The method for determination of low concentrations of chloramphenicol in bovine and porcine urine was developed. S...

Agro, Food and Beverage

We are offering a wide range of solvents for the Food and Beverage, covering qualitative and quantitative food safety analysis, composition/nutritional testing and food production. An overview on all products and services for the agro, food and beverage market can be found on the Food & Beverage mai...

Phenols - Chromatography and Sample Prep Literature from Supelco

Pub. Id. Subject Type Size (KB) No. of Pages T408127 Ascentis Express RP-Amide HPLC Columns Product Info. 536 2 T400130 The Quantitative Analysis of Semi-Volatile Organic Compounds on the MDN™-5S Capillary Column Product Info. 120 23 T409118 Ascentis Express HPLC Resource Guide Brochure 2,100 28 T10...

Interlaboratory proficiency testing on the analysis of alkylphenols, alkylphenol ethoxylates and Bisphenol A in surface and waste waters according to ISO/CD 18857-2 using new 13C-marked internal standards

• • Download PDF • Member of Working Group DIN NA 119-01-03-02-02 “Phenols with GC” Convener of Working Groups ISO TC 147/SC 2/ WG 17 “Phenols” and DIN NA 119-01-03-02-02 “Phenols with GC” As reported previously1, alkylphenols and their shortchain ethoxylates have considerable environmental relevanc...