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|Research Topic task started on Wed Mar 18, 2009 at 9:54 AM |
4 Research Topic candidates were identified in CAPLUS and MEDLINE.
using the phrase "cosmetic sample preparation for analysis"
Selected 3 of 4 candidate topics.
45 references were found containing the two concepts "cosmetic sample preparation" and "analysis" closely associated with one another.
71 references were found where the two concepts "cosmetic sample preparation" and "analysis" were present anywhere in the reference.
84 references were found containing the concept "cosmetic sample preparation".
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50 references were found when refined by Language "English"
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45 references were found when refined by Document Type "Journal"
37 references were found (8 duplicates removed)
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REGISTRY: Copyright Ó 2009 American Chemical Society. All Rights Reserved. (Some records contain information from GenBank(R). See also: Benson D.A., Karsch-Mizrachi I., Lipman D.J., Ostell J., Rapp B.A., Wheeler D.L. Genbank. Nucl. Acids Res. 28(1):15-18 (2000). Property values tagged with IC are from the ZIC/VINITI data file provided by InfoChem.) CAS Registry is a service mark of the American Chemical Society.
CASREACT: Copyright Ó 2009 American Chemical Society. All Rights Reserved. CASREACT contains reactions from CAS and from: ZIC/VINITI database (1974-1999) provided by InfoChem; INPI data prior to 1986; Biotransformations database compiled under the direction of Professor Dr. Klaus Kieslich; organic reactions, portions copyright 1996-2006 John Wiley & Sons, Ltd., John Wiley and Sons, Inc., Organic Reactions Inc., and Organic Syntheses Inc. Reproduced under license. All Rights Reserved.
CHEMLIST, CHEMCATS: Copyright Ó 2009 American Chemical Society. All Rights Reserved.
Modern methods of autoclave sample preparation in chemical analysis of substances and materials. Karpov, Yu. A.; Orlova, V. A. FGUP State Research and Design Institute of Rare-Metal Industry (Giredmet), Moscow, Russia. Inorganic Materials (2008), 44(14), 1501-1508. Publisher: Pleiades Publishing, Ltd., CODEN: INOMAF ISSN: 0020-1685. Journal; General Review written in English. CAN 150:158861 AN 2008:1474868 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R))
A review. The importance of autoclave sample prepn. in modern anal. control is shown. Spheres of application of resistive and microwave autoclave systems are distinguished. Resistive systems are recommended for multistage sample prepn. including destruction, disintegration, concg., etc. A set of highly sensitive combined techniques is developed for anal. with autoclave sample prepn. of high-purity substances: rare refractory, rare-earth, precious, and nonferrous metals; oxides and salts of these metals, alloys; semiconductor materials; glass and ceramics; mineral raw materials; objects of geochem. and geol.; ore-, coal-, and oil-refining industry; textile and light industry; objects of the environment, soils, foodstuffs, and agricultural prodn.; sources for drugs and medical and cosmetic prepns.
Different sample preparation methods combined with LC-MS/MS and LC-UV for determination of some furocoumarin compounds in products containing citruses. Prosen, Helena; Kocar, Drago. Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia. Flavour and Fragrance Journal (2008), 23(4), 263-271. Publisher: John Wiley & Sons Ltd., CODEN: FFJOED ISSN: 0882-5734. Journal written in English. CAN 150:162663 AN 2008:947401 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R))
Furocoumarins are a group of naturally occurring oxygen heterocyclic compds. synthesized by different plants (mainly Citrus species). They have several physiol. effects, e.g. photoreactivity and inhibition of intestinal and liver drug metab., which imply the need to control their concn. in products intended for human use. We tested different sample prepn. approaches and LC with different detection modes: UV, APCI-MS/MS and ESI-MS/MS for the detn. of bergapten (BGPT) and bergamottin (BGMT) in different samples of beverages and cosmetics. Direct injection of sample solns. was applicable only for essential oils, while liq.-liq. extn. proved to be time-consuming and unsuitable for our samples. Solid-phase extn. with a preconcn. factor of 20 yielded repeatable recoveries for aq. solns. (97.4% for BGPT, 64.6% for BGMT) and the concn. range was > 0.1 mg/l for UV detection and 2-1000 mg/l for MS/MS detection. Results of sample anal. indicated some problems connected both to detection and the extn. The std. addn. method for quantification yielded the most reliable results.
Determination of sequestering agents in cosmetics and synthetic detergents by high-performance liquid chromatography with ultraviolet detection. Kemmei, Tomoko; Kodama, Shuji; Yamamoto, Atsushi; Inoue, Yoshinori; Hayakawa, Kazuichi. Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama, Japan. Journal of Chromatography, A (2007), 1171(1-2), 63-68. Publisher: Elsevier B.V., CODEN: JCRAEY ISSN: 0021-9673. Journal written in English. CAN 148:85097 AN 2007:1199554 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R))
Using a fast reversible reaction of aminopolycarboxylic acids (APCAs) into Fe(III)-APCA complexes in the presence of Fe(III) ions, seven kinds of APCAs [nitrilotriacetate (NTA), N-(2-hydroxyethyl)ethylenediamine-triacetate (HEDTA), ethylenediamine-tetraacetate (EDTA), 1,3-propanediamine-tetraacetate (PDTA), diethylenetriamine-pentaacetate (DTPA), 1,2-diaminopropane-tetraacetate (MeEDTA), and O,O'-bis(2-aminoethyl)ethyleneglycol-tetraacetate (GEDTA)] in cosmetics and synthetic detergents were sepd. on two reversed-phase C30 columns connected in series and detected with UV detection. Simple pretreatment, consisted of thousand times diln. of samples and addn. of 100 ml of the Fe(III) soln. contg. 10 mM Fe(III) chloride and 0.5 M sulfuric acid to 10 mL of dild. samples, permitted the detn. of APCAs in cosmetics and synthetic detergents at concn. level of 0.1 mM, except 0.3 mM for GEDTA. APCAs except GEDTA could be detected at concn. level of 0.03 mM and GEDTA could be detected at concn. level of 0.09 mM. Good recoveries (95-110%) were obtained for each APCA by the std. addn. method on two dild. samples with high accuracy (RSD 0.2-9.1%). Three APCAs (EDTA, HEDTA and NTA) were detected in various concns. in cosmetics and synthetic detergents and the other APCAs were not detected in any of the samples. This method requires no tedious pretreatment and takes only 15 min for one anal., so it is useful for detn. of APCAs.
Voltammetric determination of copper and lead in gasoline using sample preparation as microemulsions. Cardoso, Carlos E.; Pacheco, Wagner F.; Sarubi, Rangel; Ribeiro, Marcio L. N.; Farias, Percio A. M.; Aucelio, Ricardo Q. Natural and Technological Science Center, Universidade Severino Sombra, Vassouras, Brazil. Analytical Sciences (2007), 23(9), 1065-1069. Publisher: Japan Society for Analytical Chemistry, CODEN: ANSCEN ISSN: 0910-6340. Journal written in English. CAN 147:355716 AN 2007:1100413 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R))
A voltammetric method for the detn. of Cu(II) and Pb(II) in gasoline using sample prepn. as three-component solns. (gasoline:propan-1-ol:water, 25:60:15 vol./vol./v) is proposed. HNO3 was employed as a supporting electrolyte and to allow the use of aq. inorg. stds. for calibration, even if the analyte species originally in gasoline is present as a metallo-org. form. A square-wave anodic sequential detn. was used by measuring the stripping current of Cu(II) (at + 104 mV) using a glassy carbon electrode (GCE) and, in a second run, measuring the Pb(II) stripping current (at -470 mV) using a bismuth-film deposited on the surface of the GCE. The method allowed the quantification of 1.7 ´ 10-9 mol L-1 of Cu and 1.4 ´ 10-10 mol L-1 of Pb employing a 1500-s accumulation time. Recovery tests using analyte spiked three-component solns. prepd. with com. gasoline samples enabled recoveries of Cu and Pb from 97 ±8 to 102 ±5%.
Polarographic determination of sunscreen agents in cosmetic products in micellar media. Pieretti da Silva, Andrea; Trindade, Magno Aparecido Goncalves; Ferreira, Valdir Souza. Department of Chemistry, CCET, Universidade Federal de Mato do Grosso Sul, Campo Grande, Brazil. Talanta (2006), 68(3), 679-685. Publisher: Elsevier B.V., CODEN: TLNTA2 ISSN: 0039-9140. Journal written in English. CAN 144:260065 AN 2006:16174 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R))
This paper introduces a simple, fast and reliable electroanal. method for differential-pulse polarog. based on electrochem. redn. at a dropping mercury electrode. The method was validated for the detn. of 2-ethylhexyl-4-methoxycinnamate (EHMC) alone and in assocn. with 4-methylbenzylidene camphor (MBC) or 2-hydroxy-4-methoxybenzophenone (BENZ-3) in samples of com. cosmetic prepns. The supporting electrolyte that provided the best-defined and most intense peak current for EHMC detn. was Britton-Robinson buffer (pH 4.0) in the presence of a cationic surfactant. Under optimized conditions, EHMC exhibited one single peak of redn. at -1.49 V vs. Ag/AgCl. A limit of detection of 3.76´10-8 mol L-1 and a limit of quantitation of 1.25´10-7 mol L-1 were found for the pure EHMC std. A good av. recovery rate was reached for all the samples analyzed.
Sample Preparation of Solid Samples for Metal Determination by Atomic Spectroscopy-An Overview and Selected Recent Applications. Sneddon, Joseph; Hardaway, Carey; Bobbadi, Kishore; Reddy, Avanthi. Department of Chemistry, McNeese State University, Lake Charles, LA, USA. Applied Spectroscopy Reviews (2006), 41(1), 1-14. Publisher: Taylor & Francis, Inc., CODEN: APSRBB ISSN: 0570-4928. Journal; General Review written in English. CAN 144:304028 AN 2006:7532 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R))
A review. Classical methods involving dry dissoln., wet decompn., and microwave methods for digestion/dissoln. of solid samples for metal detn. by various at. spectroscopic techniques are discussed. Recent applications of solid sample prepn. are presented including soils, sediments, food, cosmetics, oils, and coal.
Spectrophotometric determination of selenium by use of thionin. Revanasiddappa, H. D.; Kiran Kumar, T. N. Department of Chemistry, University of Mysore, Mysore, India. Analytical and Bioanalytical Chemistry (2002), 374(6), 1121-1124. Publisher: Springer-Verlag, CODEN: ABCNBP ISSN: 1618-2642. Journal written in English. CAN 138:116922 AN 2002:917757 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R))
A simple, rapid, and sensitive spectrophotometric method was developed for the detn. of Se in real samples of H2O, soil, plant materials, human hair, and synthetic cosmetic and in pharmaceutical prepns. The method is based on the reaction of Se with KI in an acidic medium to liberate I. The liberated I bleaches the violet color of thionin, which is measured at 600 nm. This decrease in absorbance is directly proportional to Se concn. and obeys Beer's law in the range 1-5 mg Se in a final vol. of 10 mL (0.1-0.5 mg mL-1). The molar absorptivity and Sandell's sensitivity of the method are 7.33 ´ 104 L mol-1 cm-1 and 0.0011 mg cm-2, resp. The optimum reaction conditions and other anal. conditions were evaluated. The effect of interfering ions on the detn. is described.
A facile spectrophotometric method for the determination of selenium. Revanasiddappa, Hosakere D.; Kumar, Telangusadhushetty N. Kiran. Department of Chemistry, University of Mysore, Mysore, India. Analytical Sciences (2001), 17(11), 1309-1312. Publisher: Japan Society for Analytical Chemistry, CODEN: ANSCEN ISSN: 0910-6340. Journal written in English. CAN 136:31002 AN 2001:867311 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R))
A rapid and sensitive spectrophotometric method is described for the detn. of trace amts. of Se using Variamine Blue (VB) as a chromogenic reagent. The proposed method is based on the reaction of Se with KI in an acidic medium to liberate I, which oxidizes Variamine Blue to form a violet-colored species having an absorption max. at 546 nm. Beer's law is obeyed in the range 2-20 g of Se in a final vol. of 10 mL. The molar absorptivity and Sandell's sensitivity are 2.6 ´ 104 l mol-1 cm-1 and 0.003 mg cm-2, resp. The optimum reaction conditions and other anal. parameters were evaluated. The effect of interfering ions on the detn. is described. The proposed method was successfully applied to the detn. of Se in real samples of H2O, soil, plant materials, human hair, and synthetic samples of cosmetics and pharmaceutical prepns.
Microwave radiation as a factor intensifying sample preparation: analysis of samples with an organic matrix. Kubrakova, I. V.; Kudinova, T. F.; Stavnivenko, E. B.; Kuz'min, N. M. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, Russia. Journal of Analytical Chemistry (Translation of Zhurnal Analiticheskoi Khimii) (1997), 52(6), 522-527. Publisher: MAIK Nauka/Interperiodica, CODEN: JACTE2 ISSN: 1061-9348. Journal written in English. CAN 127:133006 AN 1997:441825 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R))
The use of microwave sample decompn. for detg. trace components in materials with an org. matrix (vegetable materials, vegetable oil, perfumes and cosmetics, and biol. fluids) was examd. The amt. of org. substances remaining in soln. after decompn. was estd.; it was demonstrated that these substances have no effect on the subsequent detn. of impurity metals by inductively coupled plasma at. emission spectrometry and electrothermal at. absorption spectrometry. Conditions of microwave sample prepn. (mass of the sample, compn. of the acid mixt., time, and type of system) and conditions of subsequent detn. by at. spectrometry were selected. Procedures were developed for detg. major- and trace components in vegetable materials (leaves, corn, and grass mixts.), vegetable oil, biol. fluids, perfumes, and cosmetics at levels of 10-2-10-3% for Al, Ba, Mn, Ti, Zn, Sr, and Fe; n ´ 10-4% for Cu; and 10-5-10-6% for Cd, Co, Cr, and Ni.
Microwave-Assisted Process (MAP): a new tool for the analytical laboratory. Pare, J.R. Jocelyn; Belanger, Jacqueline M.R. Environ. Technol. Cent., Environ. Canada, Ottawa, ON, Can. TrAC, Trends in Analytical Chemistry (1994), 13(4), 176-84. CODEN: TTAEDJ ISSN: 0165-9936. Journal; General Review written in English. CAN 121:199839 AN 1994:599839 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R))
A review with 35 refs. This article describes the latest advances in a patented microwave-assisted extn. process. The fundamental phys. phenomena at play are reviewed and discussed in terms of their role in methods development work. The process offers new sample prepn. techniques for matrixes such as plant and animal tissues, soils, water, consumer products, cosmetics, and others. Two main areas of extns. are discussed, namely liq.-phase and gas-phase extn.
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