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Food & BeverageMycotoxins are a diverse group comprised of hundreds of secondary metabolic products of various fungal species. Several show marked toxicity in humans. Contamination of the food supply with mycotoxins is increasingly prevalent, and can occur during growth, harvest, transportation, processing or storage. Techniques to reduce mycotoxin concentration after contamination are expensive, ...

By Merck KGaA, Darmstadt, Germany

© 2013 Sigma-Aldrich Co. All rights reserved.sigma-aldrich.com/analyticalMycotoxin Analysis Using SPEMichael Ye, Ken Espenschied, Emily Barrey,Matilal Sarker, Olga Shimelis, and Jennifer ClausSupelco, Div. of Sigma-AldrichBellefonte, PA 16823 USAApril 8, 2013T413127© 2013 Sigma-Aldrich Co. All rights reserved.2Agenda• What are mycotoxins?• Supel™ Tox SPE• Aflatoxin• DON and B-Tricothecenes• ...

By Merck KGaA, Darmstadt, Germany

Using Supel™ Sphere Carbon/NH2 and an SLB®-5ms GC ColumnHighly pigmented foods, such as spinach, require cleanup prior to analysis for pesticide residues. A dual-layer SPE tube containing graphitized carbon and aminopropyl on silica (NH2) is often used. • Carbon removes pigments and sterols• NH2 removes fatty acids, polar pigments, organic acids, and sugarsRemoving these matrix materials reduces ...

By Merck KGaA, Darmstadt, Germany

Food & BeverageUsing Supel™ QuE Z-Sep+ QuEChERS and an SLB®-5ms GC ColumnReduced Fat Interference with Analysis of Pesticides in AvocadosThe health benefits of avocado are associated with its high content of healthy fat, fiber, vitamins and minerals. Avocado consumption in the United States has steadily grown, with sources of the fruit being both domestic and imported.1 The fat content of ...

By Merck KGaA, Darmstadt, Germany

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By Merck KGaA, Darmstadt, Germany

?????????????????????????? ?????? April?21,?2003???APPLYING?OIL?SPILL?EATER?II?(OSE?II)?TO?PUDDLED?GASOLINE?OR?DIESEL?TO?DETERMINE?THE?TIME?TO?RENDER?THE?FUELS?NON­FLAMMABLE.???OSEI,?Corporation,?along?with?a?Texas?Fire?Chief,?Tested?OSE?II?for?16?hours?to?determine?the?non-flammable?point?of?gasoline?and?diesel?once?OIL?SPILL?EATER?II?(OSE?II)?has?been?applied.????There? were? different? size? ...

By OSEI - Oil Spill Eater International, Corp

Application BulletinHorticultureWater Quality InstrumentationAccuracy • Reliability • SimplicityWHY ARE TESTS SO IMPORTANT?Modern growing practices include scientific evaluations of soil, water, fertilizers, diseases, etc. While some tests are best performed by a laboratory, others can be easily conducted on location, saving time and money. Three tests in particular, EC, pH, and ALKALINITY, can ...

By Myron L Company

Features Handheld meters measure • tDs and/or pH Monitor measures tDs• all instruments are easy to • operate and calibrate High degree of accuracy • Immediate results • Kit comes with solutions • required to calibrate temperature Compensated • readings tDs MonItorIng The nutrient solution and its management are the foundation of a successful hydroponics system. The function of a ...

By Myron L Company

Mycotoxin StandardsSingle- and Multi-Component Standard Solutions13C - Isotopically LabeledStandardsMatrix Certified Reference MaterialsDried Down StandardsvSome fungal genera like Aspergillus, Fusarium, Penicillium, etc. produce mycotoxins. These toxic second-ary metabolites are harmful to animal and human health if they enter the food chain via contaminated crops and fruits or through processed ...

By Merck KGaA, Darmstadt, Germany

Return to Web Version A New GC-MS Method for Mycotoxin Analysis Using 13C-marked Mycotoxin DerivativesBy: Matthias Nold, AnalytiX Volume 9 Article 1Product Manager Analytical Standards matthias.nold@sial.com Mycotoxins are toxicmetabolites of fungi such asmoulds. Fungal infection of crops can lead to mycotoxin contamination of human food, either directly or through its use as livestock feed. ...

By Merck KGaA, Darmstadt, Germany

Food & BeverageReproducible Recoveries of Pesticides from Fruits and VegetablesUsing Supel™ QuE QuEChERS and an Ascentis® Express RP-Amide HPLC ColumnLC-MS/MS methods are become very popular for the analysis of pesticides in fruits and vegetables. This is due to their ability to resolve many analytes of varying functionality. However, care must be taken during sample preparation to minimize ...

By Merck KGaA, Darmstadt, Germany

PO43- sourced from river at start of wet season Mid-winter discharge dilutes NO3- export has high inter-annual variability IN-SITU ESTURINE OBSERVATORY TO EVALUATE INTERANNUAL VARIBILITY IN NUTRIENT DYNAMICS IN YAQUINA BAY Corey Koch, Ph.D., Andrew Barnard, Ph.D. Sea-Bird Scientific 2014 Ocean Sciences Meeting Honolulu, HI 23 – 28 Feb 2014 ABSTRACT Yaquina Bay, Oregon, is a representative ...

By OTT HydroMet

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By Merck KGaA, Darmstadt, Germany

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By Merck KGaA, Darmstadt, Germany

Application BulletinhydroponicsWater Quality InstrumentationAccuracy • Reliability • SimplicityWhat is hydroponics?"A technique of growing plants in nutrient solution”. Hydroponics literally means water-working or water-activation. It is a cultivation technique for growing plants in highly oxygenated, nutrient enriched water, rather than soil.The nutrient solution and its management are the ...

By Myron L Company

sigma-aldrich.com/speImproved Recovery of the Fungicide Carbendazim from Various Orange Juice Matrices by Employing QuEChERS CleanupOlga Shimelis and Emily Barreyolga.shimelis@sial.comIntroductionFungicide carbendazim can some times be used to combat mold on citrus fruits including oranges. Recently, low residue levels of the fungicide were reported to be present in the bulk orange juice import ...

By Merck KGaA, Darmstadt, Germany

Fast and Simple Cleanup for Mycotoxin AnalysisSupel™ Tox SPE Cartridgessigma-aldrich.com/supeltoxSupel™ Tox SPE CartridgesSupel™ Tox SPE Cartridgeswhich saves time by eliminating wash steps prior to elution of aflatoxin and zearalenone, deoxynivalenol, and tricothecenes (type A and B), respectively. Cartridges removing interferences associated with analysis of fumonisins (B1 and B2) and ...

By Merck KGaA, Darmstadt, Germany

applications:agriculture• irrigation• Fertigation• Holding Tanks/ponds• turf• Dairy• aquaculture• and others …• Features:Extremely simple set-up• Reliable Operation• Minimal Maintenance• Standard 115 VAC (230 VAC Optional)• Sensor/STIK included with 10 ft. cord• EC Range 500-5000 µS/µM or ppm• NE• MA 4X/IP65 Fiberglass Weatherproof, wall-mount enclosure with 316 stainless steel hardware ...

By Myron L Company

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By TenCate Geosynthetics Netherlands bv

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By ANDRITZ Separation - ANDRITZ Group