Development of Heated Headspace Solid Phase Microextraction-gas Chromatography/mass Spectrometry for Chemical Profiling of Marijuana PDF Download
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Author: Jorn Chi-Chung Yu
Publisher:
ISBN:
Category : Marijuana
Languages : en
Pages : 14
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Book Description
Author: Jorn Chi-Chung Yu
Publisher:
ISBN:
Category : Marijuana
Languages : en
Pages : 14
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Book Description
Author: Constantinos K. Zacharis
Publisher: MDPI
ISBN: 303928262X
Category : Science
Languages : en
Pages : 266
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Book Description
This book covers the most recent research activities and achievements regarding to the solid phase microextraction (SPME) technique. It is a powerful sample preparation tool that addresses the new challenges of analytical laboratories. Among others, its fundamental applications involved the sampling of volatile compounds from various matrixes. The demonstrated topics ranged from aroma characterization of various fruits, essential oils to the utilization of SPME for in-tube extraction and isolation of selected compounds from complex samples followed by state-of-the-art analytical techniques.
Author: Heather Marie Dotzauer
Publisher:
ISBN:
Category : Ecstasy (Drug)
Languages : en
Pages : 190
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Book Description
Author: Zhouyao Zhang
Publisher:
ISBN:
Category : Chemistry, Analytic
Languages : en
Pages : 158
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Book Description
Author: United Nations Office on Drugs and Crime
Publisher: United Nations Publications
ISBN: 9789211482423
Category : Business & Economics
Languages : en
Pages : 0
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Book Description
Cannabis products are the most widely trafficked drugs worldwide, and it also remains the most widely used drug worldwide. At the same time, production methods have become increasingly sophisticated, resulting in the availability in illicit markets of a wide range of cannabis products. This updated and significantly revised manual has been prepared taking into account both developments in analytical technology and advances in the science of cannabis. It is aimed at the harmonization and establishment of recommended methods of analysis for national drug analysis laboratories. The manual suggests approaches that may assist drug analysts in the selection of methods appropriate to the sample under examination and provide data suitable for the purpose at hand, leaving room also for adaptation to the level of sophistication of different laboratories and the various legal needs.
Author: Janusz Pawliszyn
Publisher: Elsevier
ISBN: 0123914493
Category : Science
Languages : en
Pages : 497
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Book Description
The relatively new technique of solid phase microextraction (SPME) is an important tool to prepare samples both in the lab and on-site. SPME is a "green" technology because it eliminates organic solvents from analytical laboratory and can be used in environmental, food and fragrance, and forensic and drug analysis. This handbook offers a thorough background of the theory and practical implementation of SPME. SPME protocols are presented outlining each stage of the method and providing useful tips and potential pitfalls. In addition, devices and fiber coatings, automated SPME systems, SPME method development, and In Vivo applications are discussed. This handbook is essential for its discussion of the latest SPME developments as well as its in depth information on the history, theory, and practical application of the method. Practical application of Solid Phase Microextraction methods including detailed steps Provides history of extraction methods to better understand the process Suitable for all levels, from beginning student to experienced practitioner
Author: Douglas K. Parrish
Publisher:
ISBN:
Category :
Languages : en
Pages : 136
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Book Description
Solid phase microextraction was combined with gas chromatography-mass spectrometry (SPME-GC-MS) for detection of hydrogen cyanide (HCN) in the headspace above deionized (DI) water samples, with linear results that were sensitive to below Department of Defense short-term drinking water standards. HCN and several common volatile organic contaminants were also detected in 3 water types in a laboratory and field setting. The method provides an advantage over the standard drinking water detection methods for HCN as it can also simultaneously detect common low molecular weight hydrocarbons. Linear results were achieved for the detection of diisopropylamine (DIPA) by SPME-GC-MS in soil from 0.72 - 3584.5 micrograms DIPA/g soil and in DI water from 0.018 - 17.9 microgram/milliliter. The methods were successfully field tested with common hydrocarbon contaminants in 3 common agricultural soil types and 3 water types. In particular, this methodology would be useful for investigation of a suspected VX nerve agent production facility. Solid phase dynamic extraction (SPDE) was compared to passive SPME for vapor sampling of DIPA and dimethyl methylphosphonate (DMMP) with analysis by fast GC-MS. Equilibrium sampling by SPDE for DIPA and DMMP vapor provided linear results at lower concentrations and gave larger extracted ion peak areas than comparable SPME sampling. This unique application has shown great potential for further laboratory and field use, both for health risk assessment and initial chemical detection employment.
Author:
Publisher: Elsevier
ISBN: 0444643427
Category : Science
Languages : en
Pages : 518
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Book Description
Analysis of Cannabis, Volume 91, contains a wide variety of information on the analysis of cannabis and hemp, including cannabinoids, terpenes, volatile solvents and metals. Specific chapters in this new release include the Comprehensive Analytical Testing of Cannabis and Hemp, Machine Learning Methods for Inferring Chemotype Profiles in Cannabis Sativa, Recent Analytical Methodologies and Strategic Pharmacological Applications of Cannabinoids, Analysis of Cannabinoids in Plants, Marijuana Products and Biological Tissues, LC-based (UV and MS) Analysis of Cannabinoids, Testing Cannabis Samples for Heavy Metal Contamination using Microwave Assisted Digestion and ICP-MS Techniques, Applications of GC-MS Techniques for Cannabis Analysis, and much more. Contains diverse, state-of-the-art methodologies for the analyses of cannabinoids and terpenes in a variety of matrices Analyzes different cannabis and hemp-based products Provides the expertise of leading contributors from an international board of authors
Author: Gary L. Hook
Publisher:
ISBN:
Category :
Languages : en
Pages : 107
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Book Description
Author: Constantinos K. Zacharis
Publisher:
ISBN: 9783039282630
Category : Chemistry
Languages : en
Pages : 266
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Book Description
This book covers the most recent research activities and achievements regarding to the solid phase microextraction (SPME) technique. It is a powerful sample preparation tool that addresses the new challenges of analytical laboratories. Among others, its fundamental applications involved the sampling of volatile compounds from various matrixes. The demonstrated topics ranged from aroma characterization of various fruits, essential oils to the utilization of SPME for in-tube extraction and isolation of selected compounds from complex samples followed by state-of-the-art analytical techniques.
