Authors:Zhihan Zheng, Xiaobin Li, Fangfang Gao, Huitao Liu and Yuan Gao
cause damage to multiple organs of the human body, and its high toxicity and non-degradability have been widely concerned [ 4–7 ]. China's cosmetics hygiene regulations (2007 version) clearly stipulate that bithionol, pentachlorophenol (PCP), 2
A bibliometric analysis was performed to assess the quantitative trend of published pentachlorophenol (PCP) remediation studies,
including both degradation and sorption. The documents studies were retrieved from the Science Citation Index (SCI) for the
period from 1994 to 2005. The trends were analyzed with the retrieved results in publication language, document type, page
count, publication output, publication pattern, authorship, citation analysis and country of publication. The results indicated
that degradation was the emphasis for PCP remediation. The average impact factor of the journals was higher for publishing
degradation studies in comparison to that publishing sorption studies. And there was a positive correlation between CPP and
IF for journals published more than two papers. The publishing countries of both degradation and sorption denoted that most
of these researches were done by USA and Canada. Two to four authors was the most popular level of co-authorship.
The objective of the study was to perform a bibliometric analysis of all pentachlorophenolrelated publications in the Science
Citation Index (SCI). Analyzed parameters included document type, language of publication, page count, publication output,
authorship, keywords plus, publication pattern, citation and country of publication. The US produced 29% of the total single
country publications where the seven major industrial countries accounted for the majority of the total production (66%).
An indicator citation per publication was successfully applied in this study to evaluate the impact of number of authors,
countries, and journals. The mean value of citation per publication of collaborative papers was higher than that of single
country publications. In addition analysis of keywords plus in different period was applied to indicate a research trend.
Authors:Hakim Faraji, Mohamad Saber-Tehrani, Afshin Mirzaie and Syed Waqif-Husain
A novel liquid-phase microextraction method coupled with high-performance thin-layer chromatography (HPTLC) for preconcentration, separation, and determination of six phenolic compounds in water samples has been developed. Target analytes were extracted using microliter volume of 1-undecanol, which floated on the surface of the aqueous sample and was separated on an RP-18 F254 HPTLC plate using a mixture of methanol-water 2:1 (%, v/v) as the mobile phase. The plates were developed vertically up to a distance of 80 mm. The calibration curves were linear in the range of 0.025–4.0 and 0.1–20.0 mg per band, with good coefficient of determinations of 0.9978–0.9991 and 0.9985–0.9995, for phenol (PN), 2-chlorophenol (2-CP), 2,4-dichlorophenol (2,4-DCP), 2,4,6-trichlorophenol (2,4,6-TCP), 2,3,4,6-tetrachlorophenol (2,3,4,6-TeCP), and pentachlorophenol (PCP). The limit of detection (LOD) and limit of quantification (LOQ) values of the six investigated compounds were between 8–35 and 25–98 ng per band, respectively. The relative standard deviations for repeatability were between 2.61% and 6.35%. The accuracy of the method was checked by the determination of recovery at three different levels, and varied from 89.21% to 101.74% with RSD% of 2.07–6.73% (n = 3).
Authors:H. Kim, Y. Kim, S. Park, J. Lee and J. Choi
This study aimed to develop a chromatographic method to quantitatively determine phenol in fish tissues. This method involves solvent extraction of acidified samples, followed by derivatization to phenyl acetate and analysis with gas chromatography coupled with mass spectrometry (GC–MS). Phenol in a representative tissue sample (belly, gill, or renal tubules), which was homogenized with 2 N sulfuric acid, was extracted with ethyl acetate and derivatized to phenyl acetate using acetic anhydride and K2CO3 in water. An n-butyl acetate extract was injected into the GC–MS. The linearity (r2) of the calibration curve was greater than 0.996. The analytical repeatability, which is expressed as the relative standard deviation, was less than 6.14%, and the recovery was greater than 96.3%. The method detection limit and the limit of quantitation were 8.0 μg/kg and 26 μg/kg, respectively. The proposed method is also applicable to the analysis of other biological tissues for phenol and its analogs, such as pentachlorophenol.
, P , Pichat , P , Pelizzetti , E , Hidaka , H . 1995 . Exploiting the interparticle electron transfer process in the photocatalysed oxidation of phenol, 2-chlorophenol and pentachlorophenol: chemical evidence for electron and hole transfer