Optimization of a Novel Procedure for Determination of VOCs in Water and Human Urine Samples Based on SBSE Coupled with TD-GC-HRMS

Natalia, Jakubowska; Henkelmann, Bernhard; Schramm, Karl‐Werner; Namieśnik, Jacek

doi:10.1093/chromsci/47.8.689

Cited by 14 publications

(3 citation statements)

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“…In SBSE, PDMS stir bar is placed in aqueous sample (liquid phase), whereas in SPME, the PDMS fiber is exposed to the headspace (HS) of sample (gas phase) (Figure 10). These two extraction methods both use PDMS phase for sampling, however, the volume of PDMS layer in SBSE is 50 to 250 times bigger than SPME (Jakubowska, Henkelmann, Schramm, & Namiesnik, 2009). As a result, SBSE provides a higher recovery and sensitivity than SPME (Castro & Ross, 2015).…”

Section: Stir Bar Sorptive Extraction (Sbse)mentioning

confidence: 99%

Identification of volatile compounds contributing to pennycress aroma

Luo¹

2022

Flavour & Fragrance J

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Gary A. Reineccius. I am very grateful for the privilege to have Gary as my advisor, not only in my research and study, but also in my life and career. His support, encouragement, wisdom, kindness and generosity have always influenced me positively, helping me release my fear of the unknown. My appreciation also extends to my laboratory colleagues in the flavor lab. Thanks to Vaidhyanathan Anantharamkrishnan, who provided me with every bit of guidance, assistance and support that I needed in my work. Thanks to Yara Benavides Paz, who served as my sensory panelist and provided me with useful advice in my research. Thanks to Katie Enzenauer and Bruna Barbon Paulo for their friendship and encouragement throughout my time in the lab as well as in my daily life. I also need to thank Jean-Paul Schirle-Keller, who helped me solve any analytical problems that I faced, making the experiments going well. I would also like to thank my defense committee members Dr. George A. Annor and Dr. Leonard F. Marquart for their value time and helpful guidance. Besides, I have to thank my former advisor Dr. Daniel J. O'Sullivan for helping me join the Food Science M.S. program here. ii Special thanks to Dr. David Marks and Ratan Chopra (Department of Plant and Microbial Biology), who shared their abundant knowledge and expertise on pennycress, and also provided pennycress sample for this research. My special thanks also expressed to Julie Kirihara (Center for Mass Spectrometry and Proteomics) for her patience, kindness and help in the mass spectrometry center. Most importantly, I owe this accomplishment to the endless love from my parents and my elder brother. I cannot image how can I reach this point without their support. iii DEDICATION This thesis is dedicated to my parents for always supporting me and encouraging me to do what I want to do. They gave me the courage to overcome the fear of "from having everything to having nothing" in a new environment. Thanks for them giving me the wings to fly further and higher.I also dedicated this thesis to my elder brother who always tries his best to protect me like a shield whenever problems try to reach me. Without my brother, I won't be the person I am today.

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Section: Stir Bar Sorptive Extraction (Sbse)mentioning

confidence: 99%

Identification of volatile compounds contributing to pennycress aroma

Luo¹

2022

Flavour & Fragrance J

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“…Examples of SBSE applications include determination of volatile compounds in cooked cured pork ham [145], volatile organic compounds in human urine, and water samples [146], organic pollutants in water samples [147], free fatty acids in the exudates of cooked ham [148], barbiturates in urine [149], coffee volatiles in roasted Arabica coffee [150], organic pollutants in water samples [151] and odorous compounds in drinking water [152]. Recently, SBSE has been used for enhanced recovery of pesticides in wines and aromatic compounds in beers [153] and selective enrichment and analysis of polychlorinated biphenyls in fish [154].…”

Section: Stir-bar Sorptive Extraction (Sbse)mentioning

confidence: 99%

Green Approaches to Sample Preparation Based on Extraction Techniques

Aly

Górecki

2020

Molecules

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Preparing a sample for analysis is a crucial step of many analytical procedures. The goal of sample preparation is to provide a representative, homogenous sample that is free of interferences and compatible with the intended analytical method. Green approaches to sample preparation require that the consumption of hazardous organic solvents and energy be minimized or even eliminated in the analytical process. While no sample preparation is clearly the most environmentally friendly approach, complete elimination of this step is not always practical. In such cases, the extraction techniques which use low amounts of solvents or no solvents are considered ideal alternatives. This paper presents an overview of green extraction procedures and sample preparation methodologies, briefly introduces their theoretical principles, and describes the recent developments in food, pharmaceutical, environmental and bioanalytical chemistry applications.

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“…TCE was considered as one of the most frequently detected organic contaminants in groundwater [2,3]. Various methods have been developed for the determination of TCE including gas OPEN ACCESS chromatography (GC) coupled with either electron capture detectors (ECD) [4][5][6], mass spectrometers (MS) [7][8][9][10], or flame ionization detectors (FID) [11]. Traditional sample preparation methods for TCE such as liquid-liquid extraction and solid phase extraction are labor-intensive and time-consuming [5].…”

Section: Introductionmentioning

confidence: 99%

Determination of Trichloroethylene in Water by Liquid–Liquid Microextraction Assisted Solid Phase Microextraction

Zhang

Harrington

2015

Chromatography

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A method for the determination of trichloroethylene (TCE) in water using portable gas chromatography/mass spectrometry (GC/MS) was developed. A novel sample preparation method, liquid-liquid microextraction assisted solid phase microextraction (LLME-SPME), is introduced. In this method, 20 µL of hexane was added to 10 mL of TCE contaminated aqueous samples to assist headspace SPME. The extraction efficiency of SPME was significantly improved with the addition of minute amounts of organic solvents (i.e., 20 µL hexane). The absolute recoveries of TCE at different concentrations were increased from 11%-17% for the samples extracted by SPME to 29%-41% for the samples extracted by LLME-SPME. The method was demonstrated to be linear from 10 to 1000 ng mL −1 for TCE in water. The improvements on extraction efficiencies were also observed for toluene and 1, 2, 4-trichlorobenzene in water by using LLME-SPME method. The LLME-SPME method was optimized by using response surface modeling (RSM).

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Optimization of a Novel Procedure for Determination of VOCs in Water and Human Urine Samples Based on SBSE Coupled with TD-GC-HRMS

Cited by 14 publications

References 0 publications

Identification of volatile compounds contributing to pennycress aroma

Identification of volatile compounds contributing to pennycress aroma

Green Approaches to Sample Preparation Based on Extraction Techniques

Determination of Trichloroethylene in Water by Liquid–Liquid Microextraction Assisted Solid Phase Microextraction

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