scholarly journals Rapid Screening Method for the Total Petroleum Hydrocarbons in Water Samples by Solid-Phase Microextraction and GC-MS

2012 ◽  
Vol 14 (2) ◽  
pp. 177 ◽  
Author(s):  
M.B. Alimzhanova ◽  
M.B. Abilev ◽  
M.M. Kuandykova ◽  
B.N. Kenessov ◽  
D.K. Kamysbayev
Keyword(s):  
Water Samples ◽  
Petroleum Hydrocarbons ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Screening Method ◽  
Extraction Time ◽  
Total Petroleum Hydrocarbons ◽  
Extraction Temperature ◽  
Fiber Coating ◽  
Spme Fiber

Determination of total petroleum hydrocarbons (TPH) in water is an important tool for monitoring of contamination due to oil spills or leaking storage tanks. In this study, a screening method for the quantification of total petroleum hydrocarbons in water based on solid phase microextraction (SPME) in combination with gas chromatography – mass spectrometry (GC-MS) is presented. Extraction of hydrocarbons from water samples were conducted by SPME fiber coating placed into the headspace above water. Petroleum hydrocarbons were desorbed from the fiber coating in the injection port of gas chromatograph. The effect of the following parameters affecting the distribution of the analytes between three phases on the response of TPH were studied: SPME fiber coating type and dimensions, extraction temperature, extraction time and pH. The optimized method uses 100 μm polydimethylsiloxane fiber coating, extraction time 600 s, extraction temperature 80 °C, without addition of salt at basic pH. The developed method was successfully applied for detection of total petroleum hydrocarbons in water taken from Koschagyl oil fields and Koschagyl village.

Layer-by-layer fabrication of g-C3N4 coating for headspace solid-phase microextraction of food additives followed by gas chromatography-flame ionization detection

2018 ◽  
Vol 10 (3) ◽  
pp. 322-329 ◽  
Author(s):  
Yixin Yang ◽  
Peige Qin ◽  
Xiaoting Zhang ◽  
Jiahua Niu ◽  
Shufang Tian ◽  
...  
Keyword(s):  
Solid Phase Microextraction ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Food Additives ◽  
Flame Ionization Detection ◽  
Layer By Layer ◽  
Fiber Coating ◽  
Spme Fiber ◽  
Flame Ionization ◽  
Headspace Spme

With graphitic carbon nitride (g-C3N4) as an SPME fiber coating, a headspace SPME-GC was developed for the analysis of food additives.

scholarly journals Solid Phase Microextraction–Gas Chromatography For The Analysis Of Explosives In Post Blast Water Samples

2012 ◽  
Author(s):  
Umi Kalthom Ahmad ◽  
Kee Heng Kiu
Keyword(s):  
Gas Chromatography ◽  
Water Samples ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Fiber Types ◽  
Qualitative And Quantitative Analysis ◽  
Salting Out ◽  
Fiber Coating ◽  
Stirring Effect ◽  
Direct Immersion

Dalam kajian ini, teknik pengekstrakan mikro fasa pepejal (SPME) diikuti dengan kromatografi gas (GC) telah digunakan untuk menentukan sisa letupan. Beberapa parameter termasuk masa penjerapan, masa dan suhu nyahjerapan, jenis gentian SPME, kesan pengadukan dan kesan garam telah dioptimumkan untuk mendapat data yang tepat. Penambahan 10% w/v NaCl dalam medium akues dan penggunaan gentian Carboxen/Polidimetilsiloksana (CAR/PDMS) menghasilkan pengekstrakan yang paling cekap. SPME/GC–ECD yang telah dioptimumkan digunakan untuk menganalisis sisa letupan 2,6–dinitrotoluena (2,6–DNT), trinitrotoluena (TNT) dan pentaeritritol tetranitrat (PETN) berjaya dikesan daripada sampel air. SPME/GC–ECD secara rendaman langsung didapati kaedah yang menarik digunakan untuk menganalisis bahan letupan dalam sampel air pasca letupan secara kualitatif dan kuantitatif. Kata kunci: Bahan letupan, SPME rendaman langsung, GC–ECD, sampel air pasca letupan In this study, a solid–phase microextraction (SPME) technique followed by gas chromatography (GC) was used to determine explosive residues. Several parameters including adsorption time, desorption time and temperature, SPME fiber types, stirring effect and salting out effect were optimized to obtain reproducible data with good accuracy. Addition of 10% w/v of NaCl in the aqueous medium and the use of a Carboxen/Polydimethylsiloxane (CAR/PDMS) fiber coating led to optimal extraction efficiencies. The optimized SPME/GC–ECD method was applied to the trace analysis of explosive residues in water samples. 2,6–dinitrotoluene (2,6–DNT), trinitrotoluene (TNT) and pentaerythritol tetranitrate (PETN) were successfully detected from water samples. Direct Immersion SPME/GC–ECD was found to be an attractive technique for qualitative and quantitative analysis of explosives in post blast water samples. Key words: Explosives, direct immersion SPME, GC–ECD, post blast water samples

Analysis of 16 phthalate esters in wastewater from textile plants using headspace solid-phase microextraction and gas chromatography with mass spectrometric detection

2020 ◽  
pp. 004051752094190
Author(s):  
Ying Li ◽  
XiWen Ye ◽  
ZengYuan Niu ◽  
Jing He ◽  
Xin Luo ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Salt Concentration ◽  
Solid Phase Microextraction ◽  
Matrix Effects ◽  
Solid Phase ◽  
Phthalate Esters ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Textile Processing ◽  
Processing Plants

Solid-phase microextraction (SPME) with a 100-µm polydimethylsiloxane (PDMS) fiber coupled to gas chromatography–mass spectrometry was used to determine 16 phthalate esters (PAEs) in wastewater from textile processing plants. Some of the 16 PAEs that exist as mixtures of isomers were identified and quantified. We investigated the matrix effect and evaluated a qualification and quantitation method for determining trace amounts of PAEs in wastewater from textile processing plants. The major advantages of this approach are the reduced matrix effects from the textile wastewater and the compatibility with the standard addition method (SAM) for PAE quantitation. Moreover, the developed method has low reagent and solvent consumption, does not require clean-up or evaporation steps and involves minimal sample manipulation. Two fiber coatings, 85-µm polyacrylate and 100-µm PDMS, were tested. The variables affecting SPME absorption, such as the sample temperature, extraction time and salt concentration, were studied. The final conditions were an extraction temperature of 95℃, an extraction time of 30 min and a salt concentration of 0.3 g/mL. The SAM was used to analyze and quantify samples. The linear range was between 5 and 20 µg/L, and the limits of detection of the method were between 0.5 and 5 µg/L. Finally, the precision of the phthalate quantitation was also evaluated.

A nanoporous carbon material derived from pomelo peels as a fiber coating for solid-phase microextraction

RSC Advances ◽  
2016 ◽  
Vol 6 (115) ◽  
pp. 113951-113958 ◽  
Author(s):  
Wenchang Wang ◽  
Lihong Zhang ◽  
Zhi Li ◽  
Shuaihua Zhang ◽  
Chun Wang ◽  
...  
Keyword(s):  
Carbon Material ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Nanoporous Carbon ◽  
Fiber Coating ◽  
Spme Fiber ◽  
Nanoporous Carbon Material

A novel nanoporous carbon derived from a biomass source was prepared and used as an SPME fiber coating.

Synthesis of polyaniline-magnetite hollow nanocomposite as a novel fiber coating for the headspace solid-phase microextraction of benzene, toluene, ethylbenzene and xylenes from water samples

2015 ◽  
Vol 7 (12) ◽  
pp. 5318-5324 ◽  
Author(s):  
Reza Foroutani ◽  
Vahid Yousefi ◽  
Sahar Kangari
Keyword(s):  
Magnetite Nanoparticles ◽  
Water Samples ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Headspace Solid Phase Microextraction ◽  
Hollow Shell ◽  
Chemical Polymerization ◽  
Fiber Coating ◽  
Benzene Toluene

In this study, the polyaniline–magnetite (PA@Fe3O4) hollow nanocomposite was synthesized by a chemical polymerization technique, and magnetite nanoparticles were deposited on the polyaniline hollow shell.

Solid-phase microextraction using a β-ketoenamine-linked covalent organic framework coating for efficient enrichment of synthetic musks in water samples

2020 ◽  
Vol 12 (19) ◽  
pp. 2434-2442 ◽  
Author(s):  
Lian Wen ◽  
Peng Wu ◽  
Lei-Lei Wang ◽  
Li-Zong Chen ◽  
Ming-Lin Wang ◽  
...  
Keyword(s):  
Water Samples ◽  
Environmental Samples ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Covalent Organic Framework ◽  
Synthetic Musks ◽  
Fiber Coating ◽  
Organic Framework

This study indicated the promising applicability of the TpPa-1 as a solid-phase microextraction fiber coating for reliably detecting synthetic musks at trace levels from environmental samples.

Sign in / Sign up

Export Citation Format

Share Document