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You searched for: Journal Analytica chimica acta Remove constraint Journal: Analytica chimica acta Publication Year 2012 Remove constraint Publication Year: 2012 Subject air Remove constraint Subject: air Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Novel sample preparation technique with needle-type micro-extraction device for volatile organic compounds in indoor air samples

Author:
Ueta, Ikuo; Mizuguchi, Ayako; Fujimura, Koji; Kawakubo, Susumu; Saito, Yoshihiro
Source:
Analytica chimica acta 2012 v.746 pp. 77-83
ISSN:
0003-2670
Subject:
activated carbon; adsorbents; air; desorption; gas chromatography-mass spectrometry; microextraction; volatile organic compounds
Abstract:
... A novel needle-type sample preparation device was developed for the effective preconcentration of volatile organic compounds (VOCs) in indoor air before gas chromatography–mass spectrometry (GC–MS) analysis. To develop a device for extracting a wide range of VOCs typically found in indoor air, several types of particulate sorbents were tested as the extraction medium in the needle-type extraction ...
DOI:
10.1016/j.aca.2012.08.014

2. In situ solid-phase microextraction and post on-fiber derivatization combined with gas chromatography–mass spectrometry for determination of phenol in occupational air

Author:
Es-haghi, Ali; Baghernejad, Masoud; Bagheri, Habib
Source:
Analytica chimica acta 2012 v.742 pp. 17-21
ISSN:
0003-2670
Subject:
air; coatings; correlation; derivatization; desorption; detection limit; gas chromatography-mass spectrometry; monitoring; phenol; polyethylene glycol; rapid methods; solid phase microextraction; temperature
Abstract:
... A method based on solid-phase microextraction (SPME) followed by on-fiber derivatization and gas chromatography–mass spectrometry detection (GC–MS) for determination of phenol in air was developed. Three different types of SPME fibers, polar and non-polar poly(dimethylsiloxane) (PDMS) and polyethylene glycol (PEG) were synthesized using sol–gel technology and their feasibility to the sampling of p ...
DOI:
10.1016/j.aca.2012.01.002

3. Determination of polycyclic aromatic hydrocarbons and their oxy-, nitro-, and hydroxy-oxidation products

Author:
Cochran, R.E.; Dongari, N.; Jeong, H.; Beránek, J.; Haddadi, S.; Shipp, J.; Kubátová, A.
Source:
Analytica chimica acta 2012 v.740 pp. 93-103
ISSN:
0003-2670
Subject:
air; derivatization; gas chromatography-mass spectrometry; ionization; methane; monitoring; oxidation; particulates; polycyclic aromatic hydrocarbons; smoke; solid phase extraction; temperature
Abstract:
... A sensitive method has been developed for the trace analysis of PAHs and their oxidation products (i.e., nitro-, oxy-, and hydroxy-PAHs) in air particulate matter (PM). Following PM extraction, PAHs, nitro-, oxy-, and hydroxy-PAHs were fractionated using solid phase extraction (SPE) based on their polarities. Gas chromatography–mass spectrometry (GC–MS) conditions were optimized, addressing inject ...
DOI:
10.1016/j.aca.2012.05.050

4. Identification of control parameters for the sulfur gas storability with bag sampling methods

Author:
Jo, Sang-Hee; Kim, Ki-Hyun; Shon, Zang-Ho; Parker, David
Source:
Analytica chimica acta 2012 v.738 pp. 51-58
ISSN:
0003-2670
Subject:
air; aluminum; bags; hydrogen sulfide; oxidation; polyesters; storage quality; storage time; sulfur; sulfur dioxide; temporal variation
Abstract:
... Air samples containing sulfur compounds are often collected and stored in sample bags prior to analysis. The storage stability of six gaseous sulfur compounds (H₂S, CH₃SH, DMS, CS₂, DMDS and SO₂) was compared between two different bag materials (polyvinyl fluoride (PVF) and polyester aluminum (PEA)) at five initial concentrations (1, 10, 100, 1000, and 10,000ppb). The response factors (RF) of thes ...
DOI:
10.1016/j.aca.2012.06.010

5. Novel method for determining DDT in vapour and particulate phases within contaminated indoor air in a malaria area of South Africa

Author:
Naudé, Yvette; Rohwer, Egmont R.
Source:
Analytica chimica acta 2012 v.730 pp. 112-119
ISSN:
0003-2670
Subject:
DDD (pesticide); DDE (pesticide); DDT (pesticide); air; detection limit; ethane; exposure pathways; forensic sciences; gas chromatography-mass spectrometry; ingredients; isotope labeling; malaria; persistent organic pollutants; quartz; rubber; silicone; spraying; vapors; vector control; villages; South Africa
Abstract:
... The organochlorine insecticide DDT (1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane) is still used for malaria vector control in certain areas of South Africa. The strict Stockholm Convention on Persistent Organic Pollutants (POPs) allows spraying on the inside of traditional dwellings with DDT. In rural villages contaminated dust presents an additional pathway for exposure to DDT. We present a new ...
DOI:
10.1016/j.aca.2012.02.054

6. Simultaneous sampling and analysis of indoor air infested with Cimex lectularius L. (Hemiptera: Cimicidae) by solid phase microextraction, thin film microextraction and needle trap device

Author:
Eom, In-Yong; Risticevic, Sanja; Pawliszyn, Janusz
Source:
Analytica chimica acta 2012 v.716 pp. 2-10
ISSN:
0003-2670
Subject:
coatings; air; solid phase microextraction; temperature; Cimex lectularius; alarm pheromones; gas chromatography-mass spectrometry
Abstract:
... Air in a room infested by Cimex lectularius L. (Hemiptera: Cimicidae) was sampled simultaneously by three different sampling devices including solid phase microextraction (SPME) fiber coatings, thin film microextraction (TFME) devices, and needle trap devices (NTDs) and then analyzed by gas chromatography–mass spectrometry (GC–MS). The main focus of this study was to fully characterize indoor air ...
DOI:
10.1016/j.aca.2011.06.010

7. Annular diffusion denuder for simultaneous removal of gaseous organic compounds and air oxidants during sampling of carbonaceous aerosols

Author:
Mikuška, Pavel; Večeřa, Zbyněk; Bartošíková, Anna; Maenhaut, Willy
Source:
Analytica chimica acta 2012 v.714 pp. 68-75
ISSN:
0003-2670
Subject:
activated carbon; aerosols; air; charcoal; coatings; filters; nitrogen dioxide; organic compounds; oxidants; ozone; quartz; volatile organic compounds; Europe
Abstract:
... A specially designed annular diffusion denuder for simultaneous removal of organic gaseous compounds and atmospheric oxidants in carbonaceous aerosol sampling is presented. Various kinds of denuder coatings were compared with respect to the collection efficiency of both organic gaseous compounds and NO₂ and ozone. The optimum sorbent is a mixture of activated charcoal and sulfite on molecular siev ...
DOI:
10.1016/j.aca.2011.11.054

8. Effect of standard phase differences between gas and liquid and the resulting experimental bias in the analysis of gaseous volatile organic compounds

Author:
Kim, Yong-Hyun; Kim, Ki-Hyun
Source:
Analytica chimica acta 2012 v.714 pp. 98-103
ISSN:
0003-2670
Subject:
acetates; adsorption; air; alcohols; benzene; gas chromatography-mass spectrometry; styrene; toluene; volatile organic compounds; xylene
Abstract:
... Liquid- or gas-phase standards can be used for the analysis of VOCs in air. Once the accuracy is secured in the standard preparation stage, the use of gas-phase standard should be more reliable with the least matrix effect. However, it is not difficult to find that the liquid-phase standard is used more preferably in many laboratories for several reasons (e.g., low expense, easy handling, etc.). A ...
DOI:
10.1016/j.aca.2011.11.042

9. Comparison of storage stability of odorous VOCs in polyester aluminum and polyvinyl fluoride Tedlar® bags

Author:
Kim, Yong-Hyun; Kim, Ki-Hyun; Jo, Sang-Hee; Jeon, Eui-Chan; Sohn, Jong Ryeul; Parker, David B.
Source:
Analytica chimica acta 2012 v.712 pp. 162-167
ISSN:
0003-2670
Subject:
acetates; air; alcohols; aluminum; bags; benzene; gas chromatography-mass spectrometry; polyesters; storage quality; storage time; styrene; toluene; volatile organic compounds; xylene
Abstract:
... Whole air sampling using containers such as flexible bags or rigid canisters is commonly used to collect samples of volatile organic compounds (VOC) in air. The objective of this study was to compare the stability of polyester aluminum (PEA) and polyvinyl fluoride (PVF, brand name Tedlar®) bags for gaseous VOC sampling. Eight VOC standards (benzene, toluene, p-xylene, styrene, methyl ethyl ketone, ...
DOI:
10.1016/j.aca.2011.11.014