Determination of aniline in silica gel sorbent by one-step in situ microwave-assisted desorption coupled to headspace solid-phase microextraction and GC–FID

Yan, Cheing-Tong; Shih, Ton-Sheng; Jen, Jen-Fon

doi:10.1016/j.talanta.2004.03.053

Cited by 32 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hereby, the anilines are to be determined by gas chromatography (GC/MS) after solid-phase extraction (SPE) or liquid-liquid-extraction (LLE) without derivatisation according to German standard DIN 38407-16:1999 [5]. Although a variety of further techniques including solid-phase extraction with derivatisation [6][7][8][9][10], solid phase micro extraction from the liquid phase [11][12][13][14][15] or the headspace [16,17], liquid phase micro extraction [18][19][20][21][22] and micro extraction by packed sorbent [23,24] have been reported they are not allowed in the monitoring because they have not been standardised and the laboratories have mostly no respective experience in routine usage. The monitoring is restricted to the use of standardised GC/MS, while non-standardised procedures including high performance liquid chromatography [13,[18][19][20][21]25] or capillary electrophoresis [26] are not allowed because the equivalence of GC and LC methods have not been shown to the responsible authorities.…”

Section: Introductionmentioning

confidence: 99%

Comparison of gas- and liquid chromatography-mass spectrometry for trace analysis of anilines in groundwater

Dorgerloh

Hofmann

Riedel

et al. 2021

International Journal of Environmental Analytical Chemistry

View full text Add to dashboard Cite

Three chromatographic procedures were investigated regarding their potential for the quantification of aniline and 19 of its methylated and chlorinated derivatives in groundwater. These methods were based on liquid-liquid-extraction in combination with gas chromatography and single quadrupole mass spectrometry (GC/MS) according to German standard DIN 38407-16:1999 and its extension using tandem mass spectrometry (GC/MS-MS), both following liquid-liquid extraction, and as third alternative the direct injection of the water sample into a liquid chromatograph coupled to tandem mass spectrometry (LC/MS-MS). Results were compared using fortified water and real-world contaminated groundwater used in an interlaboratory comparison. It could be shown that GC/MS and GC/ MS-MS yielded results deviating less than 10% from each other, while all three procedures displayed quantification results deviating less than 15% from the intercomparison reference values in case of each analyte in the concentration range between 1 and 45 µg L −1 . Though GC/MS-MS displays a ten-fold higher sensitivity than single quadrupole GC/MS, the precision of both methods in the concentration range was similar. LC/MS-MS has the advantage of no further sample preparation due to direct injection and leads for methylanilines and meta-, para-substituted chloroanilines to results sufficiently equivalent to the standardised GC/MS method. However, LC/MS-MS is not suitable for ortho-chloroaniline derivatives due to significantly lower ion yields than meta-and para-substituted chloroanilines.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparison of gas- and liquid chromatography-mass spectrometry for trace analysis of anilines in groundwater

Dorgerloh

Hofmann

Riedel

et al. 2021

International Journal of Environmental Analytical Chemistry

View full text Add to dashboard Cite

show abstract

“…Although a variety of further techniques including solidphase extraction with derivatization [6][7][8][9], solid-phase micro-extraction from the liquid phase [10][11][12][13][14] or the headspace [15,16], liquid-phase micro-extraction [17][18][19][20][21] and micro-extraction by packed sorbent [22] have been reported they were not allowed in the interlaboratory comparison because they have not been standardized and the laboratories had mostly no respective experience in routine usage. Participation was restricted to the use of GC-MS while non-standardized procedures involving high performance liquid chromatography [12,[17][18][19][20]23] or capillary electrophoresis [24] were not allowed.…”

Section: Introductionmentioning

confidence: 99%

Quality control in extended measurement campaigns: selection of contract laboratories by proficiency testing exemplified for the trace analysis of anilines in groundwater

et al. 2014

View full text Add to dashboard Cite

An interlaboratory comparison for the determination of aniline, nine methylated anilines and chlorinated anilines in contaminated groundwater (each compound between 1 lg L -1 and 750 lg L -1 ) was conducted as proficiency test for the selection of contract laboratories for a groundwater monitoring campaign. For the 13 participants, two different test sample series were prepared from a stabilized real case groundwater. Series A was the groundwater as sampled in the field and series B was prepared from series A by spiking with selected anilines. Homogeneity and stability investigations revealed that contaminated groundwater provides a viable basis for the preparation of ring test samples for the determination of anilines. Analytical procedures were limited to the standardized liquid-liquid extraction or solid-phase extraction in combination with gas chromatography/mass spectrometry (DIN 38407-16:1999). The robust consensus values were evaluated according to the standardized protocol of DIN 38402-45:2013. Robust reproducibility standard deviations ranged largely between 20 % and 60 % depending on the analyte. The proficiency assessment of individual participants combined the qualitative aspect of correct peak identification with the quantitative determination of individual concentrations within set limits in a unified approach. It could be shown that the accreditation status of laboratory and the existence of a standardized analytical procedure do not substitute a problem-related proficiency assessment of potential contractors.

show abstract

“…Therefore, it is an important task to develop simple, rapid, and sensitive methods for the residual determination of aromatic amines. Analytical techniques including spectrophotometry 3–5, alternating‐current oscillopolarographic titration 6, microemulsion electrokinetic chromatography (MEEKC) 7, gas chromatography (GC) 8–13, GC‐mass spectrometry (GC‐MS) 14–20, capillary electrophoresis (CE) 21–24, liquid chromatography (LC) 25–39, and LC‐MS 40–42 have been used for the determination of aromatic anilines in various samples.…”

Section: Introductionmentioning

confidence: 99%

Determination of nitroanilines in hair dye using polymer monolith microextraction coupled with HPLC

Xiao

Bao

Jia

et al. 2011

J of Separation Science

View full text Add to dashboard Cite

In this study, a novel method for the determination of nitroanilines in hair dye samples has been developed based on poly(methacrylic acid-co-ethylene glycol dimethacrylate) monolith microextraction (PMME) and high-performance liquid chromatography (HPLC) analysis. Four nitroanilines, p-nitroaniline (PNAL), m-nitroaniline (MNAL), o-nitroaniline (ONAL), and 2,4-dinitroaniline (DNAL), are studied as representatives. To obtain optimum extraction efficiency, several experimental parameters including sample flow rate, sample volume, sample pH, and eluent flow rate have been investigated. Under the optimal experimental conditions, the linear regression coefficients of the standard curves are greater than 0.9990. The limits of detection for p-nitroaniline, m-nitroaniline, o-nitroaniline, and 2,4-dinitroaniline are 0.012, 0.008, 0.018, and 0.005 μg/mL, respectively. The intraday and interday relative standard deviations are less than 3.1 and 5.4%, respectively. The proposed method is simple, rapid, sensitive, and competent when used for the determination of nitroanilines in hair dye samples and the accuracy is assessed through recovery experiments.

show abstract

Determination of aniline in silica gel sorbent by one-step in situ microwave-assisted desorption coupled to headspace solid-phase microextraction and GC–FID

Cited by 32 publications

References 20 publications

Comparison of gas- and liquid chromatography-mass spectrometry for trace analysis of anilines in groundwater

Comparison of gas- and liquid chromatography-mass spectrometry for trace analysis of anilines in groundwater

Quality control in extended measurement campaigns: selection of contract laboratories by proficiency testing exemplified for the trace analysis of anilines in groundwater

Determination of nitroanilines in hair dye using polymer monolith microextraction coupled with HPLC

Contact Info

Product

Resources

About