Leite, Andreia

Mesquita, Letícia S.

Mesquita, Raquel B. R.

Moniz, Tânia

Rangel, António O. S. S.

Rangel, Maria

English

Repositório Institucional da Universidade Católica Portuguesa

ANALÍTICA 20189th Meeting of Division of Analytical Chemistry26-27 MARCH, PORTO-PORTUGALFFUP/ICBAS – UNIVERSITY OF PORTOBOOK OF  ABSTRACTSwww.analitica2018.eventos.chemistry.pt74  PF 5  MONITORING SOIL/WATER INTERFACE: DEVELOPMENT OF AN INTEGRATED SEQUENTIAL INJECTION SYSTEM APPLIED TO LABORATORY SCALE SOIL CORE COLUMN AND MICRO SOIL COLUMN  Letícia S. Mesquita1, Raquel B. R. Mesquita1,2, Maria Rangel2, Andreia Leite2, Tânia Moniz2, António O. S. S. Rangel1  1Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal 2 REQUIMTE - LAQV, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal rmesquita@porto.ucp.pt  Monitoring soil leaching of nutrients and contaminants has become essential for environmental and agricultural studies. With a growing concern on soil contamination and increasing awareness of inorganic and organic contaminants effects on soil quality, the study of soil leaching is vital. The leachates from soil have a huge impact on the quality of surface and ground waters. Conventional soil testing can hardly keep up with this ever-increasing demand of sample analysis frequency as it is based on manual or mechanical soil sampling and atomic absorption/emission spectroscopy detection, leading to costly and time-consuming assays. In this context, the work developed aimed to tackle this issue by setting a laboratory scale soil core (LSSC) column and developing a sequential injection (SI) method for soil leachates monitoring. The LSSC and micro soil columns (µSC) were set with soil from different locations. Rain water, well water and iron complexes solutions, namely the commercially available iron fertilizer FeEDDHA and two new fertilizers from the hydroxypyridinones family of complexes Fe(mpp)3, Fe(dmpp)3 [1, 2], were passed through the columns, and the impact in the leachate evaluated. So, the water/iron complexes solutions were assessed before and after perfusing the LSSC and µSC. The SI method proved to be advantageous, in terms of cost, time consumption and waste production, in comparison to conventional methods. With the developed method, an efficient monitoring of soil leachate process can be attained.  Acknowledgments: R. B. R. Mesquita and L. S. Mesquita thank to Fundação para a Ciência e a Tecnologia (FCT) and POCH of FSE for the grants SFRH/BPD/112032/2015 and PTDC/AAG- MAA/5887/2014_BI_2, respectively. This work was also supported by National Funds from FCT through projects PTDC/AAG-MAA/5887/2014; scientific collaboration from project UID/Multi/50016/2013 is acknowledged.  [1] Burgess, J.; Rangel, M. Adv. Inorg. Chem. 2008, 60, 167-243. [2] Santos, C.; Carvalho, S.; Leite, A.; Moniz, T.; Roriz, M.; Rangel, A. O. O. S.; Rangel, M.; Vasconcelos, M. Plant Physiol. Biochem. 2016, 106, 91-100.   

Monitoring soil/water interface: development of an integrated sequential injection system applied to laboratory scale soil core column and micro soil column

https://repositorio.ucp.pt/bitstream/10400.14/24304/1/Mesquita_PF5_Analitica2018.pdf

Monitoring soil/water interface: development of an integrated sequential injection system applied to laboratory scale soli core column and micro soil column

Monitoring soil/water interface: development of an integrated sequential injection system applied to laboratory scale soli core column and micro soil column

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