As a bit of fun I thought I would look at my portfiolio of fourteen journals to see what the top cited papers were and so I thought I'd share my findings with my loyal following :-)
I'd love to hear (read) people's comments. Best wishes, David
1.
Journal of Chromatography A, Volume 1116, Issue 1-2, 2006, Pp 1-9
Cited by: 273
A new microextraction technique termed dispersive liquid-liquid microextraction (DLLME) was developed. DLLME is a very simple and rapid method for extraction and preconcentration of organic compounds from water samples. In this method, the appropriate mixture of extraction solvent (8.0 μL C2Cl4) and disperser solvent (1.00 mL acetone) are injected into the aqueous sample (5.00 mL) by syringe, rapidly. Therefore, cloudy solution is formed. In fact, it is consisted of fine particles of extraction solvent which is dispersed entirely into aqueous phase. After centrifuging, the fine particles of extraction solvent are sedimented in the bottom of the conical test tube (5.0 ± 0.2 μL). The performance of DLLME is illustrated with the determination of polycyclic aromatic hydrocarbons (PAHs) in water samples by using gas chromatography-flame ionization detection (GC-FID). Some important parameters, such as kind of extraction and disperser solvent and volume of them, and extraction time were investigated. Under the optimum conditions the enrichment factor ranged from 603 to 1113 and the recovery ranged from 60.3 to 111.3%. The linear range was 0.02-200 μg/L (four orders of magnitude) and limit of detection was 0.007-0.030 μg/L for most of analytes. The relative standard deviations (RSDs) for 2 μg/L of PAHs in water by using internal standard were in the range 1.4-10.2% (n = 5). The recoveries of PAHs from surface water at spiking level of 5.0 μg/L were 82.0-111.0%. The ability of DLLME technique in the extraction of other organic compounds such as organochlorine pesticides, organophosphorus pesticides and substituted benzene compounds (benzene, toluene, ethyl benzene, and xylenes) from water samples were studied. The advantages of DLLME method are simplicity of operation, rapidity, low cost, high recovery, and enrichment factor. © 2006 Elsevier B.V. All rights reserved.
2.
Biosensors and Bioelectronics, Volume 21, Issue 11, 2006, Pages 2015-2045
Bullen, R.A.; Arnot, T.C.; Lakeman, J.B.; Walsh, F.C.
Bullen, R.A.; Arnot, T.C.; Lakeman, J.B.; Walsh, F.C.
Cited by: 225
This review considers the literature published since 1994 on microbial and enzymatic biofuel cells. Types of biofuel cell are classified according to the nature of the electrode reaction and the nature of the biochemical reactions. The performance of fuel cells is critically reviewed and a variety of possible applications is considered. The current direction of development of biofuel cells is carefully analysed. While considerable chemical development of enzyme electrodes has occurred, relatively little progress has been made towards the engineering development biofuel cells. The limit of performance of biofuel cells is highlighted and suggestions for future research directions are provided. © 2006 Elsevier B.V. All rights reserved.
3.
Journal of Chromatography A, Volume 1065, Issue 2, 2005, Pp 145-168
Ito, Y.
Cited by: 220
This paper aims to be an aid to those chemists who are interested in utilizing high-speed counter-current chromatography (HSCCC), which is free of irreversible adsorption and offers high resolution comparable to column chromatography. It explains the selection of HSCCC conditions step by step including the selection of two-phase solvent systems, determination of partition coefficient (K) of analytes, preparation of two-phase solvent system and sample solution, selection of elution mode, flow rate, rotation speed, and on-line monitoring of the eluate. The paper covers both standard HSCCC and pH-zone-refining CCC techniques. Technical terms (italic) unfamiliar to the beginner are comprehensively explained in Glossary. Various examples of two-phase solvent systems used in HSCCC are listed in Appendices A and B. The commercial sources of HSCCC and other CCC instruments are described in detail in the study edited by Berthod [A. Berthod (Ed.), Counter-current Chromatography, Elsevier, Amsterdam, 2003].
4.
Analytica Chimica Acta, Volume 556, Issue 1, 18 January 2006, Pages 38-45
Abstract
Room-temperature ionic liquids (RTILs) are solvents that may have great potential in chemical analysis. Recent surge in the number of publications/reports/books/monographs clearly indicate an increasing interest of scientific and engineering community toward these exciting and unique solvents. Consequently, a variety of analytical applications of RTILs have started to emerge. This review presents an account of some of the recent reports on RTILs in major subdisciplines of analytical chemistry. Specifically, recent literature representing the applications of RTILs in chromatography, extraction, electroanalytical chemistry, sensing, and spectrometry is reviewed. With a rapid growth in the number of publications on analytical applications of RTILs, it appears that in the near future these neoteric solvents are definitely going to be a permanent feature in analytical chemistry. © 2005 Elsevier B.V. All rights reserved.
5.
TrAC - Trends in Analytical Chemistry, Volume 24, Issue 4, 2005, Pp 285-294
Dunn, W.B., Ellis, D.I.
Cited by: 192
During the previous decade, a new array of analytical methodologies and technologies were introduced related to the analysis of microbial, plant and animal metabolomes (complete collections of all low molecular weight compounds in a cell). The scientific field of metabolomics was born. In this review, we discuss advances in methodologies and technologies, and outline applications. © 2005 Elsevier Ltd. All rights reserved.
6.
Journal of Chromatography B, Volume 817, Issue 1, 2005, Pp 67-76
Wilson, I.D. Plumb, R. Granger, J. Major, H. Williams, R. Lenz, E.M.
Cited by: 192
The development and use of HPLC-MS for the study of metabonomics is reviewed. To date the technique has been applied to the analysis of urine samples obtained from studies in rodents in investigations of physiological variation (e.g., factors such as strain, gender, diurnal variation, etc.) and toxicity. Examples are provided of the use of conventional HPLC, capillary methods and the recently introduced high-resolution systems based on a combination of high pressure and small particle size ("UPLC"). Comparison is also made of the use of 1H NMR spectroscopy and HPLC-MS for the analysis of biofluid samples and the advantages and limitations of the two approaches are assessed. Likely future developments are considered. © 2004 Elsevier B.V. All rights reserved.
7.
TrAC - Trends in Analytical Chemistry, Volume 24, Issue 9, 2005, Pp 826-838
Merkoçi, A. Pumera, M. Llopis, X. Pérez, B. Del Valle, M. Alegret, S.
Cited by: 165
Carbon nanotubes (CNTs) combine in a unique way high electrical conductivity, high chemical stability and extremely high mechanical strength. These special properties of both single-wall (SW) and multi-wall (MW) CNTs have attracted the interest of many researchers in the field of electrochemical sensors. This article demonstrates the latest advances and future trends in producing, modifying, characterizing and integrating CNTs into electrochemical sensing systems. CNTs can be either used as single probes after formation in situ or even individually attached onto a proper transducing surface after synthesis. Both SWCNTs and MWCNTs can be used to modify several electrode surfaces in either vertically oriented "nanotube forests" or even a non-oriented way. They can be also used in sensors after mixing them with a polymer matrix to form CNT composites. We discuss novel applications of CNTs in electrochemical sensors, including enzyme-based biosensors, DNA sensors and immunosensors, and propose future challenges and applications. © 2005 Elsevier Ltd. All rights reserved.
8.
Talanta, Volume 66, Issue 1, 2005, Pp 51-57
Zhao, Y. Gao, Y. Zhan, D. Liu, H. Zhao, Q. Kou, Y. Shao, Y. Li, M. Zhuang, Q. Zhu, Z.
Cited by: 156
The electrochemistry of dopamine (DA) was studied by cyclic voltammetry at a glassy carbon electrode modified by a gel containing multi-walled carbon nanotubes (MWNTs) and room-temperature ionic liquid of 1-octyl-3- methylimidazolium hexafluorophosphate (OMIMPF6). The thickness of gel on the surface of the electrode has to be controlled carefully because the charging currents increase with the modified layer being thicker. The anodic peaks of DA, ascorbic acid (AA) and uric acid (UA) in their mixture can be well separated since the peak potential of AA is shifted to more negative values, while that of UA is shifted to more positive values due to the modified electrode. At pH 7.08 the three peaks are separated ca. 0.20 and 0.15 V, respectively; hence DA can be determined in the presence of UA and more than 100 times excess of AA. Under optimum conditions linear calibration graphs were obtained over the DA concentration range 1.0 × 10-6 to 1.0 × 10-4 M. The detection limit of the current technique was found to be 1.0 × 10-7 M based on the signal-to-noise ratio of 3. The modified electrode has been successfully applied for the assay of DA in human blood serum. This work provides a simple and easy approach to selectively detect dopamine in the presence of ascorbic acid and uric acid. © 2004 Elsevier B.V. All rights reserved.
9.
TrAC - Trends in Analytical Chemistry, Volume 25, Issue 5, 2006, Pp 480-489
Trojanowicz, M.
Cited by: 147
Discoveries of new materials have significant impact on development of new methods and instrumentation for chemical analysis. Based on 104 references, this article illustrates a growing number of applications of carbon nanotubes (CNTs) in analytical chemistry. The largest numbers of reported applications concern design of novel gas sensors, voltammetry, enzymatic biosensors, immunosensors and DNA probes. The sorptive properties of CNTs are also employed for analytical purposes in various ways. © 2005 Elsevier B.V. All rights reserved.
10.
TrAC - Trends in Analytical Chemistry, Volume 24, Issue 5, 2005, Pp 426-436
Paleologos, E.K. Giokas, D.L. Karayannis, M.I.
Cited by: 140
We present contemporary developments in the field of surfactants and micellar systems together with their applications in analysis, with the aim of highlighting some of the most important aspects of this area of research. We pay particular attention to speciation through cloud-point extraction (CPE), as well as to the differentiation of metallic species, oxidation states and complexes prior to their determination. We also present a theoretical background and a guide for experimentally optimizing CPE. We conclude by discussing some problems arising from the use of surfactant systems, while proposing future trends and potential new areas for their application. © 2005 Elsevier Ltd. All rights reserved.
Hi there, awesome site. I thought the topics you posted on were very interesting. I tried to add your RSS to my feed reader and it a few. take a look at it, hopefully
ReplyDeleteI can add you and follow.
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