Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Sulo Piepponen"'
Publikováno v:
Rämö, J, Sillanpää, J, Klasila, T & Piepponen, S 2001, ' Determination of Mn, Fe, and Cu in chemically-treated wood pulps by the XRF addition method ', Fresenius' Journal of Analytical Chemistry, vol. 370, no. 8, pp. 1105-1108 . https://doi.org/10.1007%2Fs002160100912
A rapid X-ray fluorescence addition method has been developed for quantification of the technically most important metals in wood pulp matrix (Mn, Fe, and Cu). Pretreatment consisted of just two steps: first, acid was added to the sample to achieve h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5f8de11acb3c4646bd9264120c3a61d
https://doi.org/10.1007/s002160100912
https://doi.org/10.1007/s002160100912
Determination of Na+, K+, Ca2+, and Cl- ions in wood pulp suspensions using ion-selective electrodes
Autor:
Ari Ivaska, Johan Bobacka, Andrzej Lewenstam, Mika Sillanpää, Konstantin N. Mikhelson, Mercedes Vázquez, Jaakko Rämö, Sulo Piepponen
Publikováno v:
Electroanalysis. 13(13):1119-1124
Ion‐selective electrodes were optimized for the determination of Na+, K+ and Ca2+ in wood pulp suspension. The electrodes were based on solvent polymeric membranes (plasticized PVC) containing neutral carriers. The results obtained with the optimiz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::645627d80889c9378ca90d8d019e853e
https://cris.vtt.fi/en/publications/67c15ed6-f398-40cc-887c-a3c3dd83cb3b
https://cris.vtt.fi/en/publications/67c15ed6-f398-40cc-887c-a3c3dd83cb3b
Publikováno v:
Rapid Communications in Mass Spectrometry. 12(15):1011-1018
Classification of different cola drinks by membrane inlet mass spectrometry (MIMS) combined with different statistical computing methods is demonstrated. The spectra of cola drinks were measured directly using a single quadrupole mass spectrometer wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15f5028111f4fd4912f161cf91ce1d5d
https://cris.vtt.fi/en/publications/429616e9-de60-4555-bc9a-d078173de2af
https://cris.vtt.fi/en/publications/429616e9-de60-4555-bc9a-d078173de2af
Publikováno v:
Hatanpää, E, Kajander, K, Laitinen, T, Piepponen, S & Revitzer, H 1997, ' A study of trace element behavior in two modern coal-fired power plants I : Development and optimization of trace element analysis using reference materials ', Fuel Processing Technology, vol. 51, no. 3, pp. 205-217 . https://doi.org/10.1016/S0378-3820(97)00006-4
Analytical methods for solid samples taken from a coal-fired power plant were developed and optimized in order to facilitate a comprehensive series of measurement campaigns aimed at trace metal balance determinations in various coal-fired power plant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e3786791c8e55b80c85b4daf1218fdc
https://doi.org/10.1016/s0378-3820(97)00006-4
https://doi.org/10.1016/s0378-3820(97)00006-4
Autor:
Helena Liukkonen-Lilja, Sulo Piepponen
Publikováno v:
Liukkonen-Lilja, H & Piepponen, S 1992, ' Leaching of aluminium from aluminium dishes and packages ', Food Additives and Contaminants, vol. 9, no. 3, pp. 213-223 . https://doi.org/10.1080/02652039209374065
A study was carried out of the leaching of aluminium from aluminium cooking vessels and packages. Very small or undetectable levels of aluminium leached from packaging materials into foodstuffs. In boiling tests with neutral porridge no migration of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8563e90b402260cd905ac90821812821
https://doi.org/10.1080/02652039209374065
https://doi.org/10.1080/02652039209374065
Publikováno v:
Acidification in Finland ISBN: 9783642754524
The study on the effects of acidification and airborne load on the concentrations of some trace metals (Al, Mn, Cd, Cu, Pb, Zn, Ni, Hg) in sediments (16 lakes), water (259 lakes) and aquatic fauna (14 lakes) of pristine Finnish headwater lakes was co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07ac997c81d363aaac3e422f2b7d77a2
https://doi.org/10.1007/978-3-642-75450-0_43
https://doi.org/10.1007/978-3-642-75450-0_43
Autor:
Sulo Piepponen, Reijo Lindström
Publikováno v:
Piepponen, S & Lindström, R 1989, ' Data analysis of heavy metal pollution in the sea by using principal component analysis and partial least squares regression ', Chemometrics and Intelligent Laboratory Systems, vol. 7, no. 1-2, pp. 163-170 . https://doi.org/10.1016/0169-7439(89)80120-0
Environmental heavy metal pollution in the coastal waters of the Bothnian Sea near the city of Pori was monitored by observations of mussels (Mytilus edulis L.). The concentrations of Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Pb, Sb, Ti, V and Zn in the so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::736ba35fe32afc39e2218d09b74c8515
https://cris.vtt.fi/en/publications/3fac2a87-461e-417e-b4f1-09bb538048c6
https://cris.vtt.fi/en/publications/3fac2a87-461e-417e-b4f1-09bb538048c6
Publikováno v:
Piepponen, S, Alanko, T & Minkkinen, P 1986, ' A simplified approach to the generalized standard-addition method and its application in electrothermal atomic absorption spectrometry ', Analytica Chimica Acta, vol. 191, no. C, pp. 495-504 . https://doi.org/10.1016/S0003-2670(00)86338-2
A simple and general standard-addition method for a single-component determination is presented. The method uses two independent variables for the calculation of the analyte concentration (the amount of sample taken and the amount of analyte added) a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8985ff29bbbac75545c1b7b4bb02a3e9
https://cris.vtt.fi/en/publications/690df931-9d46-4e82-99bc-b85efb42d878
https://cris.vtt.fi/en/publications/690df931-9d46-4e82-99bc-b85efb42d878
Publikováno v:
Zeitschrift f�r Lebensmittel-Untersuchung und -Forschung. 176:120-123
The investigation area was Tikkurila, southern Finland, where three lead-processing plants are located. 117 samples of fungi were analyzed for their lead, cadmium and mercury contents. The lead contents of both mycorrhizal and humus decomposer fungi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d150b2450fc1a7edc143f09b0cfa337
https://doi.org/10.1007/bf01074475
https://doi.org/10.1007/bf01074475
Publikováno v:
Zeitschrift f�r Lebensmittel-Untersuchung und -Forschung. 177:257-260
In this investigation the selenium contents of 142 mushroom samples were determined. The majority of the samples were wild Finnish mushroom species generally used for human consumption. The selenium contents of some cultivated mushrooms were also det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ead314a06852f358ea351f97926403ed
https://doi.org/10.1007/bf01082489
https://doi.org/10.1007/bf01082489