An interlaboratory study as useful tool for proficiency testing of chemical oxygen demand measurements using solid substrates and liquid samples with high suspended solid content

Date

2009-11-15

Author

Raposo, F.
de la Rubia, M. A.
Borja, R.
Alaiz, M.
Beltran, J.
Cavinato, C.
Clinckspoor, M.
Demirer, Göksel Niyazi
Diamadopoulos, E.
Helmreich, B.
Jenicek, P.
Marti, N.
Mendez, R.
Noguerol, J.
Pereira, F.
Picard, S.
Torrijos, M.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

195
views

0
downloads

In 2008, the first Proficiency Testing Scheme of Chemical Oxygen Demand (1(st) COD-PTADG) was conducted to assess the results obtained for different research groups whose field work is mainly anaerobic digestion. This study was performed using four samples, two solid samples as raw materials and two solid samples to prepare high concentration suspended solid solutions. Invitations were sent to a large number of laboratories, mainly to anaerobic digestion research groups. Finally, thirty labs from sixteen countries agreed to participate, but for different reasons four participants could not send any data. In total. twenty-six results were reported to the COD-PT coordinator.

Subject Keywords

General Chemistry

URI

https://hdl.handle.net/11511/57938

Journal

TALANTA

DOI

https://doi.org/10.1016/j.talanta.2009.06.071

Collections

Department of Environmental Engineering, Article

Suggestions

OpenMETU
Core

The design and synthesis of a photo-controlled, peptide-based potential drug carrier Parlak Khalily, Melek; Özçubukçu, Salih (The Scientific and Technological Research Council of Turkey, 2018-01-01) Our focus in this study is on the design and synthesis of a light-responsive peptide-based nanocarrier in order to develop effective and biocompatible drug delivery systems. The synthesized nanocarrier is basically composed of peptide amphiphiles comprising a micelle forming a Pro-Pro-Pro-Lys-Lys-Lys peptide sequence with an attached anthracene fluorophore Anthracene containing an inner core of the micelle can serve as a storage site for poorly water-soluble drugs. Moreover, anthracenes that come in close p...
One-step synthesis of hierarchical [B]-ZSM-5 using cetyltrimethylammonium bromide as mesoporogen Yalcin, Busra Karakaya; İpek Torun, Bahar (The Scientific and Technological Research Council of Turkey, 2020-01-01) One-step facile synthesis of boron containing ZSM-5 microspheres is developed using 1,6-diaminohexane as the structure-directing agent and cetyltrimethylammonium bromide as the mesoporogen. High boron incorporation up to Si/B ratio of 38 is achieved and evidenced by the stretching vibrations of B-O-Si at 667 cm(-1) and 917 cm(-1) using Fourier-transform infrared spectra. The morphology of the crystals resembles berry-like spheres with sizes approximately 15 mu m, which is composed of aggregated nanocrystals...
Behaviour of bimetallic Pt-Pd carbon-supported catalysts in methanol electrooxidation Gokagac, G; Leger, JM; Hahn, F (Walter de Gruyter GmbH, 2003-05-01) Carbon powder supported bimetallic 8w%Pt+8w%Pd/C, 8w%Pt+6w%Pd/C, 8w%Pt+4w%Pd/C, Sw%Pt+2w%Pd/C, 8w%Pt/C and 8w%Pd/C samples were prepared, characterised and tested for the electrooxidation of methanol. The particle sizes were found to depend greatly on the composition and the metal content. With pure palladium and samples rich in palladium, the diameter of the bimetallic particles was around 150 nm, but with pure Pt and samples poor in Pd it was much smaller, below 5 nm. The electrocatalytic activity of thes...
Development of new synthetic methodologies for indole derivatives Kılıklı, Ahmet Alper; Balcı, Metin; Department of Chemistry (2010) Synthesizing nitrogen containing heterocyclic compounds is one of the leading research areas throughout the organic chemistry due to their significant activities on biological systems. Among the various biologically active molecules, indole derivatives are of prime importance on the grounds of their proven clinical roles. Objective of this study is to synthesize new indole derivatives those may contribute treatment of several diseases like their analogues via a recently developed synthetic methodology. Besi...
The preparation and characterization of zeolite confined rhodium(0) nanoclusters: a heterogeneous catalyst for the hydrogen generation from the methanolysis of ammonia-borane Çalışkan, Salim; Özkar, Saim; Department of Chemistry (2010) Among the new hydrogen storage materials, ammonia borane (AB) appears to be the most promising one as it has high hydrogen content, high stability, and being environmentally benign. Dehydrogenation of AB can be achieved via hydrolysis, thermolysis or methanolysis. Methanolysis of AB eliminates some drawbacks of other dehydrogenation reactions of AB. The use of colloidal and supported particles as more active catalyst than their bulky counterparts for the hydrolysis of AB implies that reducing the particle s...

Citation Formats

F. Raposo et al., “An interlaboratory study as useful tool for proficiency testing of chemical oxygen demand measurements using solid substrates and liquid samples with high suspended solid content,” TALANTA, pp. 329–337, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/57938.