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655 matches found for gas_chromatography

Kava (Piper methysticum) | Plant Profiler

Synonyms / Common Names / Related Terms (+) -dihydrokawain-5-ol, 11-methoxy-5, 5-hydroxydihydrokawain, 6-dihydroyangonin, antares, ava, ava pepper, ava pepper shrub, ava root, awa, bornyl cinnamate, cavain, Fijian kava, flavokavines A and B, gea, gi, grog, intoxicating long pepper, intoxicating pepp...

Air Monitoring Literature

radiello® Brochure Publication Title Type Size (kb) No. Pages NEW Sampling and Analysis of Carbonyls in Air (request) Product Info - 16 ASSET™ EZ4-NCO Isocyanates Dry Sampler Product Info 400 2 General A Tool for Selecting an Adsorbent for Thermal Desorption Applications Product Info 529 36 Benefits...

LC/MS/MS Analysis of Aflatoxins in Hops After Solid Phase Extraction Cleanup

Related Products • Food & Beverage Analysis • Toxins (other than pesticide/drug residues) • Supel™ Tox SPE Cartridges Related Articles • Reporter US Volume 34.1 • Analysis of Residual Solvents in Hemp Extract by Headspace SPME-GC/MS • Headspace SPME GC/MS Analysis of Terpenes in Cannabis • Quantifyi...

ENVI-Carb Plus for the Extraction of Propylene Glycol and Ethylene Glycol from Water

• • Download PDF • katherine.stenerson@sial.com Propylene glycol has a wide variety of applications, including uses as a solvent, emulsifier, and moisturizer in various chemical, food, and personal care products. Its toxicity to both humans and animals is relatively low. Ethylene glycol, which is wi...

Extraction and Analysis of PAHs in Olive Oil using Molecularly Imprinted Polymer SPE and GC-MS

Related Articles • A Comparison of Two Solid Phase Extraction Methods for the Analysis of Polyaromatic Hydrocarbons in Butter • Improved Recoveries and Lower Background for the Analysis of PAHs in Olive Oil • Chiral GC Analysis of Carvone Enantiomers in Essential Oils • Extraction and Analysis of PA...

Technical Literature for Derivatization Reagents

General Literature & Books Handbook of Analytical Derivatization Reactions – D. Knapp Guide to Derivatization Reagents for Gas Chromatography (GC) Handbook of Derivatization reagents for HPLC (Book & CD) - Lunn & Hellwig Silylation Reagents BSA (PDF 107 KB) BSA + TMCS (PDF 108 KB) BSA + TMCS + TMSI ...

In Situ Hybridization of Whole-Mount Mouse Embryos with RNA Probes

Product lists for commonly used protocols from Cold Spring Harbor Protocols Thomas Lufkin This protocol was adapted from "Techniques for Visualizing Gene Products, Cells, Tissues, and Organ Systems," Chapter 16, in Manipulating the Mouse Embryo, 3rd edition, by Andras Nagy, Marina Gertsenstein, Kris...

OligoArchitect™ Assay Design

PCR Technologies Protocols Table of Contents Efficient qPCR relies on good assay design. Since the invention of PCR, many parameters have been identified as important for assay quality, such as estimates of oligo temperature characteristics, GC content and folding properties. Empirical evidence has ...

Quick, Sensitive LC/MS/MS Analysis of Aflatoxins in Cannabis

Related Products • Cannabis Testing • Food & Beverage Analysis • Toxins (other than pesticide/drug residues) • Supel™ Tox SPE Cartridges Related Articles • Reporter US Volume 34.2 • Analysis of Residual Solvents in Hemp Extract by Headspace SPME-GC/MS • Headspace SPME GC/MS Analysis of Terpenes in C...

Mild Palladium-Catalyzed Cyanation of (Hetero)aryl Halides and Triflates in Aqueous Media-

The development of a novel Pd-catalyzed synthesis of (hetero)aromatic nitriles from the corresponding aryl chlorides and potassium hexacyanoferrate(II) is described. This novel protocol avoids the use of highly toxic alkali cyanides and proceeds in the presence of small amounts of palladium catalyst...

US EPA Method 325B Compliance

• • Download PDF • [Webinar] The Analysis Workflow of the New EPA Method 325 for Fenceline Monitoring The Analysis Workflow of the New EPA Method 325 for Fenceline Monitoring  Carbopack X delivers trusted sampling performance f...

Ephedra (Ephedra sinica) | Plant Profiler

Synonyms / Common Names / Related Terms 6-hydroxykynurenic acid, amp II, amsania, brigham tea, budshur, cao ma huang (Chinese), cathine, chewa, Chinese ephedra, Chinese joint fir, D-pseudoephedrine, desert herb, desert tea, dextro-rotatory, EPH 833, Ephedra altissima, Ephedra americana, Ephedra anti...

radiello® Diffusive Air Sampling Application - VOCs Thermally Desorbed

radiello Table of Contents Yellow diffusive body Product No. RAD1202 Supporting plate Product No. RAD121 Vertical adapter Product No. RAD122 (optional) Adsorbing cartridge Product No. RAD145 Or try: VOCs Thermally Desorbed Starter Kit Product No. RAD145S • 1 Support plate • 1 Yellow diffusive body •...

Prevent GC Inlet Problems BEFORE They Cost You Time and Money

Related Information • GC Septa • GC Inlet Liners • GC Liner O-Rings • GC Inlet Seals • Purifiers • Syringes • All GC Products GC Accessories & Gas Pur/Mgmt Products View(1Mb) / Request Introduction Our Technical Service chemists help GC users solve problems that are often the direct result of overus...

Chiral GC Analysis of Carvone Enantiomers in Essential Oils

Using Astec® CHIRALDEX® G-TA Capillary GC Columns D-Carvone and L-carvone are enantiomeric compounds that have very different smells. These mirror image compounds provide very different aroma notes. D-Carvone is the major compound found in caraway seed essential oil, and a large component of dill se...

Volatiles - Chromatography and Sample Prep Literature from Supelco

Pub. Id. Subject Type Size (KB) No. of Pages T400156 A Systematic Approach for Selecting the Appropriate Fiber Product Info 614 32 T494042 TO-14 Gas Standards Product Info 598 2 T495049 Supelco Chemical Standards for US EPA Method 8260A Product Info 94 2 IYP VOC's / BTEX chemically desorbed with CS2...

Extract-N-Amp™ Blood PCR Kit Protocol

Catalog Numbers: XNAB2, XNAB2E, XNAB2R, XNAB2RE, and P8115 Product Description Reagents and Equipment Required But Not Provided Storage/Stability Precautions and Disclaimer Procedure PCR amplification Troubleshooting Guide Materials References The Extract-N-Amp Blood PCR Kits contain all the reagent...

Restriction Enzymes

Click here to return to the Molecular Biology Guide Restriction endonucleases popularly referred to as restriction enzymes, are ubiquitously present in prokaryotes. The function of restriction endonucleases is mainly protection against foreign genetic material especially against bacteriophage DNA. T...

Analysis of Pesticide Residues in Cannabis Using QuEChERS Extraction and Cleanup Followed by GC/MS/MS Analysis

Related Products • Cannabis Testing • Food & Beverage Analysis • Pesticide Analysis • Supel™ QuE Verde for Challenging Compounds in Green Matrices Related Articles • Reporter US Volume 34.1 • Analysis of Residual Solvents in Hemp Extract by Headspace SPME-GC/MS • Headspace SPME GC/MS Analysis of Ter...

OSHA ID 111 – Products and Materials Guide

Phosphoric Acid in Workplace Atmospheres For this method, adsorbent tube samples are collected by drawing workplace air through either coconut shell charcoal or Anasorb 747 tubes with personal sampling pumps. Diffusive samples are collected by exposing either 3M 3520 Organic Vapor Monitors (OVMs) or...

How Technology is Impacting Our Sensory Experiences

Interested in receiving more content like this? Join over 2,500 of your peers who have already signed up for the bi-monthly Flavors and Fragrances newsletter. The art of flavor and fragrance formulation has stayed true over the years, but technology has not stood still. Consumers’ ever-evolving tast...

Translational Research Lead Optimization

Chemical Synthesis and Sourcing Purification & Analysis Secondary Assays Workflows End-to-end solutions for the lead optimization and chemical synthesis workflows, supporting the needs of both chemists and non-chemists with industry-leading availability and innovation. Rapid Custom Synthesis: Made t...

Agarose and Acrylamide product lines for nucleic electrophoresis

Agarose Learning Center Agarose Pre-cast Agarose Gels Acrylamide Agarose We offer a range of molecular biology grade agarose products from routine use to wide range and low melt point agarose. Each lot of products is rigorously tested to ensure reproducibility from one lot to the next. Use the follo...

FAME Standard for Optimizing GC System Performance

Vicki Yearick and Katherine Stenerson vicki.yearick@sial.com AOCS and AOAC methods for determining the trans fatty acid composition of foods by gas chromatography require the use of a highly polar cyanosilicone capillary column to provide the best peak resolution attainable of the numerous geometric...

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...

Biofuels Analysis

Biodiesel Analysis B100 biodiesel is recognized worldwide as an alternative fuel and qualifies for mandated programs in the US and EU. Although there are many required tests, most producers use the concentration of free and total glycerin as a critical pass/fail test for B100. Other practical concer...

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...

Petrochemical Industry - Supelco Air Monitoring Applications

The petroleum refining industry has advanced from producing cheap kerosene as its main role during inception to its diversity today where the demands of modern transportation have led to production of gasoline, diesel and jet fuels. Industrial innovations have created the demand for petrochemical pr...

GC-MS Tuning Solutions, Internal and Surrogate Standards

techservice@sial.com Because of its sensitivity and specificity, GC-MS is a widely used technique in environmental and forensic chemistry. Some important applications within these markets include many EPA methods, drugs of abuse monitoring and fire and explosives residue investigations. To get the m...

Frequently Asked Questions – Analytical Chemistry Products

The following links provide information or answers relating to frequently asked questions (FAQs) about our consumables and services for analytical chemistry. See Also: Helpful Guides If you need additional information, or would like to make a custom product request, please contact us! You can reach ...