Coupled LC-GC-NPD for Determination of Carbazole-Type PANH and Its Application to Personal Exposure Measurement

Tollbäck, Petter; Carlsson, Håkan; Östman, Conny

doi:10.1002/(sici)1521-4168(20000201)23:2<131::aid-jhrc131>3.0.co;2-5

Cited by 13 publications

(9 citation statements)

References 26 publications

(17 reference statements)

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“…The precision and calibration R 2 obtained were acceptable for quantitation purposes. Detection limits (LOD) were similar to those obtained for individual carbazoles using a LC-GC-NPD method developed for monitoring personal exposure (1 -3 pg) [42]. In that report, samples were not particularly complex.…”

Section: Quantitation Of Nitrogen-containing Compounds In Hgosupporting

confidence: 54%

Qualitative and quantitative study of nitrogen‐containing compounds in heavy gas oil using comprehensive two‐dimensional gas chromatography with nitrogen phosphorus detection

Mühlen

Oliveira

Morrison

et al. 2007

J of Separation Science

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Qualitative and quantitative study of nitrogencontaining compounds in heavy gas oil using comprehensive two-dimensional gas chromatography with nitrogen phosphorus detectionIn this work, a GC6GC -nitrogen -phosphorus detection (NPD) methodology was developed to separate and quantitate nitrogen-containing compounds in Brazilian heavy gas oil. First, the NPD performance was improved in order to achieve best GC6GC performance. The geometry of this detector was also evaluated. The use of an extended jet improved significantly the peak shape. The GC6GC separation was studied using both first and second dimension columns with different internal diameters. The use of a thicker film in both dimensions provided better performance. LODs of 0.16 -8.49 pg of individual compounds were achieved. Two different extraction techniques of the neutral and basic nitrogen-containing compounds were also evaluated. The method using ion-exchange resins to separate neutral and basic nitrogen-containing compounds was more efficient than the method using modified silica. As an example, the amounts (lg/g) of each class reported were: indole (2.77), alkyl carbazoles ranging from C 0 to C 6+ (1.467), alkyl benzocarbazoles from C 0 to C 4+ (793), alkyl quinolines (31.2) and alkyl benzoquinolines (21.6) were quantitated.

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Section: Quantitation Of Nitrogen-containing Compounds In Hgosupporting

confidence: 54%

Qualitative and quantitative study of nitrogen‐containing compounds in heavy gas oil using comprehensive two‐dimensional gas chromatography with nitrogen phosphorus detection

Mühlen

Oliveira

Morrison

et al. 2007

J of Separation Science

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show abstract

“…In order to avoid degradation of mobile PBDE congeners, it is recommended to use an injector with programmed thermal vaporisation (PTV). When using the split/splitless injector, it is necessary to accurately determine the temperature of injection, which will not discriminate lower brominated BDEs, as well as affect the degradation of higher brominated BDEs [9,10,[40][41][42][43]. Temperature lower than 300ЊC in split/splitless injection mode causes lack of BDE-209 evaporation, which together with the solvent goes directly to the column.…”

Section: Sampling and Instrumental Analysis Methodsmentioning

confidence: 99%

Methods for determination of polybrominated diphenyl ethers in environmental samples – review

Fulara

Czaplicka

2012

J of Separation Science

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Polybrominated diphenyl ethers (PBDEs) are a group of persistent organic pollutants. They are used as flame retardants in plastics, paints, varnishes and textile materials. PBDEs pose great risk to the environment because of their high persistence and ability to get into the environment easily due to the lack of chemical bonds with the matrix of materials, to which they are added. Global research studies confirmed the occurrence of those compounds in the majority of elements of water and land environment. Analysis of PBDEs in environmental samples is one of the specific analytical methods of criteria that comprise low detection limits and high selectivity. The analysis of PBDEs in environmental samples is one of the specific analytical methods, in which the main criteria are low detection limits and high selectivity. In this article, a literature review of methods for environmental sample preparation and analysis of the PBDE content was presented. The article discusses the potential of modern extraction techniques such as: solid-phase microextraction, single-drop microextraction, dispersive liquid-liquid microextraction, microwave-assisted extraction, cloud point extraction, hollow fibre-liquid phase microextraction and others for the separation of PBDEs from environmental samples with a complex matrix. Among the methods for qualitative and quantitative determination of PBDEs, a particular focus was put on gas chromatography/mass spectrometry with various injection techniques and different types of sample ionisation.

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“…A Swedish research group has developed for years a LCxGC analytical system and applied it for the determination of PAHs [105,106] and AZAs [107] in various particulate matter samples and SRMs. This uncommon hyphenation enabled Tollbäck et al to separate AZAs in two groups, acridines and carbazoles, in the first dimension (LC with a polar dimethylaminopropyl phase), and then to resolve the different compounds of the carbazole group in the second dimension (GC with non-polar 5% phenyl phase) after back-flush of the LC column.…”

Section: Lcxgcmentioning

confidence: 99%

Environmental analysis of polar and non-polar Polycyclic Aromatic Compounds in airborne particulate matter, settled dust and soot: Part II: Instrumental analysis and occurrence

Galmiche

Delhomme

François

et al. 2021

TrAC Trends in Analytical Chemistry

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Coupled LC-GC-NPD for Determination of Carbazole-Type PANH and Its Application to Personal Exposure Measurement

Cited by 13 publications

References 26 publications

Qualitative and quantitative study of nitrogen‐containing compounds in heavy gas oil using comprehensive two‐dimensional gas chromatography with nitrogen phosphorus detection

Qualitative and quantitative study of nitrogen‐containing compounds in heavy gas oil using comprehensive two‐dimensional gas chromatography with nitrogen phosphorus detection

Methods for determination of polybrominated diphenyl ethers in environmental samples – review

Environmental analysis of polar and non-polar Polycyclic Aromatic Compounds in airborne particulate matter, settled dust and soot: Part II: Instrumental analysis and occurrence

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