A serial dilution is any dilution in which the concentration decreases by the same factor in each successive step. In serial dilutions, you multiply the dilution factors for each step. The dilution factor or the dilution is the initial volume divided by the final volume. Serial Dilutions. A dilution series is a succession of step dilutions, each with the same dilution factor, where the diluted material of the previous step is used to make the subsequent dilution. This is how standard curves for ELISA can be made. To make a dilution series, use the following formulas: Move Volume = Final Volume / (DF -1).

This study examined the determination of BOD in landfill leachates by dilution (D-method) and manometric methods (M-method). The differences in results were discussed based on statistical tests. The effects of sample dilution, seeding, chloride and total Kjeldahl nitrogen (TKN) level were examined. The M-method was found to be more sensitive to increases in chloride and TKN concentrations. However, in the M-method the positive interference of nitrogenous BOD (NBOD) to carbonaceous BOD (CBOD) was more successfully prevented. The BOD rate constant k and the ultimate BOD (BOD u) were estimated by non-linear regression.

With the M-method these parameters could be more reliably estimated than the D-method. Suggestions were made for BOD analyses in landfill leachates in future studies. • For reproduction of material from NJC: Reproduced from Ref. XX with permission from the Centre National de la Recherche Scientifique (CNRS) and The Royal Society of Chemistry. • For reproduction of material from PCCP: Reproduced from Ref. XX with permission from the PCCP Owner Societies. • For reproduction of material from PPS: Reproduced from Ref.

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XX with permission from the European Society for Photobiology, the European Photochemistry Association, and The Royal Society of Chemistry. • For reproduction of material from all other RSC journals and books: Reproduced from Ref. XX with permission from The Royal Society of Chemistry. If the material has been adapted instead of reproduced from the original RSC publication 'Reproduced from' can be substituted with 'Adapted from'.

In all cases the Ref. XX is the XXth reference in the list of references.

If you are the author of this article you do not need to formally request permission to reproduce figures, diagrams etc. Contained in this article in third party publications or in a thesis or dissertation provided that the correct acknowledgement is given with the reproduced material. Reproduced material should be attributed as follows. Nocd crack k igre 762 perezaryadka nodvd dlya 762 perezaryadka.