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Dive into the research topics where Toma Galaon is active.

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Featured researches published by Toma Galaon.


International Symposium "The Environment and the Industry" | 2017

Detection of cytostatic drugs in municipal waste water and their transfer to surface water

Toma Galaon; Jana Petre; Vasile Iancu; Liliana Cruceru; Marcela Niculescu; Florentina Laura Chiriac; Diana Puiu; Madalina Mihalache

A new sensitive and selective LC-MS/MS method with positive electrospray ionization was developed to detect seven cytostatic drugs and one metabolite from municipal waste water. The method separates the target analytes in only 16 minutes using a Hypersil Gold column (100 x 2.1 mm, 3.0 μm) kept at 20°C and a mobile phase made of aq. 0.2% HCOOH and ACN in the ratio 92/8 (v/v). A low mobile phase flow of 0.2 mL/min was used to increase MS ionization yield and hence method sensitivity. A complex two steps (10%/minute) and two plateau gradient elution program was applied for 12 minutes to achieve analyte separation from matrix and each other with highly efficient peaks. Collision energy, fragmentor and capillary voltages were optimized to increase MS sensitivity. Optimization of LC-MS parameters generated low instrumental LOQs situated in the range 0.1 ÷ 1.0 ng/mL. MS detector response was linear between 1 and 100 ng/mL with R coefficients > 0.997 for all eight target analytes. SPE using Oasis HLB cartridges was employed to concentrate target analytes from water samples with MeOH as elution solvent. Intraday and inter-day precision (RSD %) was situated between 5.4 ÷ 7.2% and 7.3 ÷ 10.8%, respectively. Cytostatics recovery after SPE was good due to internal standard correction with values between 70 ÷ 134%. Overall method LOQs were situated between 0.6 and 5.6 ng/L. The method was tested on four waste water samples from a WWTP plant in Bucharest, but none of the targeted cytostatic drugs were found above detection limit.


Archive | 2016

Nitrosamines determination in drinking water using a new GC-­MS/MS method coupled with automated solid phase extraction

Toma Galaon; Lucian Constantin; Jana Petre; Luoana Florentina Pascu; Carol Lehr

International Multidisciplinary Scientific GeoConference-SGEM, Geoconference on Science and Technologies in Geology, Ecology, Economics, Education and Legislation, SGEM 2016, vol. I, 2016, pp. 471-478


15th International Multidisciplinary Scientific GeoConference SGEM2015 | 2011

Determination of some organophosphate insecticides and herbicides in Romanian surface water samples by LC-­MS/MS

Vasile Iancu; Toma Galaon; Jana Petre; Liliana Cruceru; Luoana Florentina Pascu

International Multidisciplinary Scientific GeoConference-SGEM, Geoconference on Science and Technologies in Geology, Ecology, Economics, Education and Legislation, SGEM 2015, vol. II, 2015, pp. 131-138


Archive | 2016

Aldehydes and acetone in indoor air of 19 houses from Bucharest (Romania)

Raluca Diodiu; Toma Galaon; Elena Bucur; Luoana Florentina Pascu


Journal of Environmental Protection and Ecology | 2016

New LC-MS/MS method for the determination of eight nitrosamines in drinking water.

Toma Galaon; Liliana Cruceru; Jana Petre; Luoana Florentina Pascu; Vasile Iancu; Marcela Niculescu


SIMI 2018 | 2018

DETERMINATION OF SULFUR COMPOUNDS WITH A STRONG OLFACTORY IMPACT ON THE POPULATION

Raluca Diodiu; Toma Galaon; Vasile Iancu; Mihaela Petrescu; Mihai Bratu; Valeriu Danciulescu; Andreea Cozea


International Symposium "The Environment and the Industry" | 2017

Determination of estrogenic steroids in sewage sludge samples from eight domestic wastewater treatment plants

Jana Petre; Toma Galaon; Vasile Iancu; Marcela Niculescu


International Symposium "The Environment and the Industry" | 2017

A study of the content in volatile oils and their composition of various aromatic herbs from ecological soils

Mariana Popescu; Diana Puiu; Madalina Mihalache; Natalita Bordei; Anca Daniela Raiciu; Ionut Nicolae Cristea; Toma Galaon; Luoana Florentina Pascu


International Symposium "The Environment and the Industry" | 2016

Improved method for determination of anions present in aqueous samples by ion-chromatography

Florentina Laura Chiriac; Toma Galaon; Liliana Cruceru


Archive | 2015

Indoor air exposure to aldehydes and ketones in rooms with new and old furniture of a new office building

Raluca Diodiu; Elena Bucur; Toma Galaon; Luoana Florentina Pascu

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Vasile Iancu

University of Bucharest

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Mariana Popescu

Politehnica University of Bucharest

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Mihai Bratu

Politehnica University of Bucharest

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