Headspace solid-phase microextraction for the determination of volatile sulfur compounds in odorous hyper-eutrophic freshwater lakes using gas chromatography with flame photometric detection

Lü, Xin; Fan, Chengxin; Shang, Jingge; Deng, Jiancai; Yin, Hongbin

doi:10.1016/j.microc.2012.04.001

Cited by 51 publications

(26 citation statements)

References 42 publications

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“…Moreover, China is not the only country that has suffered this ecological disaster. Black bloom, also known as "black spot," "black aggregation," and "black water agglomerate" (Lu et al, 2012;Pucciarelli et al, 2008;Rusch et al, 1998), has been observed in many lakes and bays. Black water was reported in an Illinois lake during the summer of 1969, with ferrous sulfide believed to be the main cause of the blackness (Stahl, 1979).…”

Section: Introductionmentioning

confidence: 99%

Precontrol of algae-induced black blooms through sediment dredging at appropriate depth in a typical eutrophic shallow lake

Liu

Shen

Zhou

et al. 2015

Ecological Engineering

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Section: Introductionmentioning

confidence: 99%

Precontrol of algae-induced black blooms through sediment dredging at appropriate depth in a typical eutrophic shallow lake

Liu

Shen

Zhou

et al. 2015

Ecological Engineering

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“…Among them, the enrichment performance of 75 μm CAR/PDMS coating was better than that of 65 μm PDMS/DVB and 50/30 μm DVB/CAR/PDMS coating. The CAR/PDMS fiber extraction process consisted of the adsorption of small molecules into micropores of the carboxen phase and the PDMS coating, thereby leading to a high capacity for extracting extremely volatile, low molecular weight molecules, which included most VSCs . Thus, 75 μm CAR/PDMS coating was selected as the optimized SPME coating.…”

Section: Resultsmentioning

confidence: 99%

Rapid and accurate determination of trace volatile sulfur compounds in human halitosis by an adaptable active sampling system coupling with gas chromatography

Chen³

et al. 2020

J of Separation Science

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Halitosis with the main components of trace volatile sulfur compounds widely affects the quality of life. In this study, an adaptable active sampling system with two samplecollection modes of direct injection and solid-phase microextraction was developed for the rapid and precise determination of trace volatile sulfur compounds in human halitosis coupled with gas chromatography-flame photometric detection. The active sampling system was well designed and produced for efficiently sampling and precisely determining trace volatile targets in halitosis under the optimized sampling and detection conditions. The analytical method established was successfully applied for the determination of trace targets in halitosis. The limits of detection of H 2 S, CH 3 SH, and CH 3 SCH 3 by direct injection were 0.0140-23.0 μg/L with good recoveries ranging from 82.2 to 118% and satisfactory relative standard deviations of 0.4-9.5% (n = 3), respectively. The limit of detections of CH 3 SH and CH 3 SCH 3 by solidphase microextraction were 2.03 and 0.186 × 10 −3 μg/L with good recoveries ranging from 98.3 to 108% and relative standard deviations of 5.9-9.0% (n = 3). Trace volatile targets in positive real samples could be actually found and quantified by combination of direct injection and solid-phase microextraction. This method was reliable and efficient for the determination of trace volatile sulfur compounds in halitosis. K E Y W O R D Sactive sampling system, gas chromatography, halitosis, solid-phase microextraction, volatile sulfur compounds 1830

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“…The carrier gas was He (99.999%) at a constant fl ow rate (3 mL/min), and it was supplied with 50 mL/ min of H 2 , 65 mL/min of synthetic air and 30 mL/min of N 2 as auxiliary gas mixture. The temperature program consisted of an initial run at 50°C for 5 min followed by a gradient of 25°C/min up to 250°C and then temperature hold for 10 min at 250°C (Lu et al, 2012). …”

Section: Spme and Gc Conditionsmentioning

confidence: 99%

Adsorption of dimethyl trisulfide from aqueous solution on a low-cost adsorbent: thermally activated pinecone

Shang

Fan

2014

Chin. J. Ocean. Limnol.

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Thermally activated pinecone (TAP) was used for the adsorption of dimethyl trisulfi de (DMTS) from aqueous solutions, which was proved to be the main odorous in algae-caused black bloom. The effects of adsorbent dosage, adsorbate concentration and contact time on DMTS biosorption were studied. The TAP produced at 600°C exhibited a relatively high surface area (519.69 m 2 /g) and excellent adsorption capacity. The results show that the adsorption of DMTS was initially fast and that the equilibrium time was 6 h. Higher initial DMTS concentrations led to lower removal percentages but higher adsorption capacity. The removal percentage of DMTS increased and the adsorption capacity of TAP decreased with an increase in adsorbent dosage. The adsorption process conforms well to a pseudo-second-order kinetics model. The adsorption of DMTS is more appropriately described by the Freundlich isotherm ( R 2 =0.996 1) than by the Langmuir isotherm ( R 2 =0.916 9). The results demonstrate that TAP could be an attractive low-cost adsorbent for removing DMTS from water.

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Headspace solid-phase microextraction for the determination of volatile sulfur compounds in odorous hyper-eutrophic freshwater lakes using gas chromatography with flame photometric detection

Cited by 51 publications

References 42 publications

Precontrol of algae-induced black blooms through sediment dredging at appropriate depth in a typical eutrophic shallow lake

Precontrol of algae-induced black blooms through sediment dredging at appropriate depth in a typical eutrophic shallow lake

Rapid and accurate determination of trace volatile sulfur compounds in human halitosis by an adaptable active sampling system coupling with gas chromatography

Adsorption of dimethyl trisulfide from aqueous solution on a low-cost adsorbent: thermally activated pinecone

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