extraction combined with thermal desorption-gc ms

Flavour profiling of milk using HiSorb sorptive extraction

2017-1-23sorptive extraction using PDMS probes with analysis by thermal desorption–gas chromatography–mass spectrometry (TD–GC–MS) included alkanes aldehydes alcohols acids esters ketones and lactones as well as other compounds with potential to affect the flavour profile Lactones are particularly important flavour compounds in a

Desorption GC/MS using Slitted Microvials

2020-6-3Desorption Thermal Extraction Microvial GC/MS ABSTRACT This application note describes the direct thermal desorption of desirable and undesirable aroma compounds from edible oils The oil sample is placed in a microvial from where it is directly thermally desorbed using a GERSTEL Thermal Desorption Unit (TDU) Volatile compounds are transferred

ionRocket: An innovative Thermal Desorption and

Thermal Desorption and Pyrolysis combined with Direct Analysis in Real Time- Mass Spectrometry (TDP/DART-MS) is a useful method for qualitative and quantitative analysis of lubricating oil Polymers and resins (e g Nylon-6) present a unique challenge for many mass spectrometry systems

Porous polyimide particle

Porous polyimide particle-coated adsorptive microextraction bar combined with thermal desorption-gas chromatography for rapid determination of parabens in condiments Author: Yan Xiaohui Zhong Dongdong Zhan Yingying Li Yanshuo Wu Dapeng Source: Journal of chromatography 2019 v 1601 pp 71-78 ISSN: 0021-9673 Subject:

Thermal Desorption: A Practical Applications Guide

1998-1-23Since the early 1980s thermal desorption has provided the ultimate versatile sample introduction technology for GC / GC-MS It combines selective concentration enhancement with direct extraction into the carrier gas and efficient transfer / injection all in one fully automated and labour-saving package Markes International Ltd UK headquarters

Tritech Instruments (INDIA) PVT LTD

2018-9-3The Thermal Desorption Unit (TDU) is a flexible automated solution for thermal desorption and thermal extraction Several techniques are supported by the TDU: • Stir Bar Sorptive Extraction (SBSE) using the GERSTEL Twister • Dynamic Headspace (DHS) based on standard headspace vials • Air sampling onto adsorbent tubes combined with

Thermal Desorption Technical Support

optimised TD-GC(/MS) New specialist sampling apparatus and alternative real-time detection systems which can be combined with thermal desorption to extend its utility for indoor air research are also described Analytical thermal desorption - The process Analytical thermal desorption (TD) is essentially a gas-phase introduction technique for

Polymer Analysis and Microplastics in the

The abbreviation TED-GC-MS describes a two-step method for volatile diagnostics originating from polymers at high temperatures First the entire sample is pyrolized and the polymer specific decomposition products are trapped on a solid-phase adsorbent (Thermal Extraction) In a subsequent step the decomposition products are thermally desorbed chromatographically separated and then

Porous polyimide particle

2019-9-13BAμE combined with thermal desorption and gas chromatography-mass spectrometry analysis (BAμE/TD-GC-MS) was established for rapid analysis of parabens in condiments In the method porous 250–500 μm polyimide (PI) particles were prepared and used as extraction phase to accelerate the BAμE procedure

Injection and Stir Bar Sorptive Extraction

2018-12-10Stir Bar Sorptive Extraction (SBSE) based on novel EG-Silicone Twisters combined with thermal desorption-gas chromatography-mass spectrometry (TD-GC-MS) Direct Large Volume Injection (LVI) -GC-MS was used as reference method Optimized methods for LVI-GC-MS and SBSE-TD-GC-MS analysis were used for quantitative

Extraction Combined with Thermal Desorption

2020-7-17Extraction Combined with Thermal Desorption-GC/MS Edward A Pfannkoch John R Stuff Jacqueline A Whitecavage Gerstel Inc 701 Digital Dr Suite J Linthicum MD 21090 USA KEYWORDS Thermal desorption gas chromatography mass spectrometry Twister Stir Bar Sorptive Extraction SBSE ABSTRACT This study shows the analysis of several

Optimisation of stir bar sorptive extraction and liquid

2019-1-18LVI-GC–MS and the application of the methodology to char-acterize the volatile components of wine For this purpose the most important SBSE–LD parameters were systematically optimised namely extraction time influence of the ethanol matrix back-extraction time and solvent type and the main LVI instrumental settings

100036 SBSE probe desorption GC

2012-10-7100036 SBSE probe desorption GC-IT-MS analysis of degradation products of esfenvalerate obtained by chemical oxidation process(Janete 100186 Tandem SPE clean up/extraction: strategy to minimize matrix effects on LC-MS determination of endocrine disrupters and 100390 Application of combined UPLC-TOF-MS and combustion ion chromatography

Thermal Desorption Technical Support

optimised TD-GC(/MS) New specialist sampling apparatus and alternative real-time detection systems which can be combined with thermal desorption to extend its utility for indoor air research are also described Analytical thermal desorption - The process Analytical thermal desorption (TD) is essentially a gas-phase introduction technique for

polyimide microsphere assembled by nanosheets combined

The BAμE device could stand up to 30 extraction/desorption cycles without decrease of extraction efficiency The results of method validation showed that the BAμE-TD/GC–MS method possessed wide linearity (0 05–50 μg/L or 0 05–20 μg/L) high correlation coefficients ( 0 9987) good precision (RSDs 11 8%) low detection limits (0 005–0 013 μg/L) and high enrichment factors (528

Rapid Screening of Cannabinoids in Edibles Using

2018-12-3Edibles Using Thermal Desorption-GC–MS Most of the traditional methodologies for the de-termination of cannabinoids are based on sol-vent extraction i ltration and concentration These techniques are cumbersome time-consuming and suffer from analyst-to-analyst variability while pro-ducing data of limited value

Flavour profiling of milk using HiSorb sorptive extraction

2017-1-23sorptive extraction using PDMS probes with analysis by thermal desorption–gas chromatography–mass spectrometry (TD–GC–MS) included alkanes aldehydes alcohols acids esters ketones and lactones as well as other compounds with potential to affect the flavour profile Lactones are particularly important flavour compounds in a

Thermal Desorption Unit TDU

2016-9-29The Thermal Desorption Unit (TDU) is a flexible automated solution for thermal desorption and thermal extraction Several techniques are supported by the TDU: l Stir Bar Sorptive Extraction (SBSE) using the GERSTEL Twister l Dynamic Headspace (DHS) based on standard headspace vials l Air sampling onto adsorbent tubes combined with thermal

Rapid Screening of Cannabinoids in Edibles Using

2018-12-3Edibles Using Thermal Desorption-GC–MS Most of the traditional methodologies for the de-termination of cannabinoids are based on sol-vent extraction i ltration and concentration These techniques are cumbersome time-consuming and suffer from analyst-to-analyst variability while pro-ducing data of limited value

GERSTEL Applications for Flavor and Fragrance (FFF)

2019-11-19Qualitative Analysis of Coconut Water Products using Stir Bar Sorptive Extraction Combined with Thermal Desorption-GC/MS : AppNote-2012-02 Determining Phenolic Compounds in Whisky using Direct Large Volume Injection and Stir Bar Sorptive Extraction : AppNote-2011-08

Markes launches new 'xr' series of thermal desorption

2016-5-9Markes International (Llantrisant UK) has announced the launch of a new family of thermal desorption instruments for GC–MS at the Analytica 2016 trade show in Munich Germany The new products which form the 'xr' series incorporate new powerful advances that offer major benefits to analytical laboratories running analyses of volatile and semi-volatile organic compounds (VOCs and

Porous polyimide particle

Bar adsorptive microextraction using polyimide (PI) particles as the extraction phase followed by thermal desorption and gas chromatography-mass spectrometry (BAμE/TD-GC-MS) was developed to detect parabens in condiments such as soy sauce vinegar and cooking wine The PI particles were prepared b

Establishment of Cyperus rotundus Tubers Fingerprints by

A novel solid-phase extraction element i e magic-chemisorber(MC)combined with thermal desorption(TD)-gas chromatography/mass spectrometry(GC/MS)was applied for the analysis of volatile component in Cyperus rotundus tubers from different growing areas

Extractables and Leachables Analysis of IV Bag Systems

2019-4-15desorption/thermal extraction combined with unit resolution GC/MS system The results were compared to those obtained for leachables by stir bar sorptive extrac - tion of an aqueous solution stored in the exact same type of IV bag again combined with GC/MS determination of the leached compounds In addition a high resolution

Short Report J Braz Chem Soc

2020-1-8In thermal desorption different injector temperature programs were evaluated to define the most efficient desorption temperature of the analytes from the stir bar GC-IT-MS analysis The GC-IT-MS analysis was performed in a CP 3800 gas chromatograph equipped with a ChromatoProbe device coupled to a GC-IT-MS/MS Saturn 2000 (Varian)

Degradation Products of Lambda

Lambda-cyhalothrin and its derivative products were monitored employing stir bar sorptive extraction (SBSE) using liquid and thermal desorption combined with gas chromatography coupled with ion trap mass spectrometry (GC-IT-MS) technology GC-IT-MS enabled the proposal of the lambda-cyhalothrin chemical transformation pathway and the full