Dear plagiarist, you copied my data but you made mistakes!

Dear plagiarist,

Last weeks, I was doing some bibliography using Web of Science and found an interesting reference according to its title!

The use of natural inorganic sorbents for adsorption of lanthanide ions

by Gladysz-Plaska and Majdan (2006) in PRZEMYSL CHEMICZNY

Unfortunately, it was not available on any form online, I thus order it through my library service. Earlier this week, I got a crappy printed copy. Obviously the text is in Polish (and I did not understand anything) but the figures and captions, as well as the abstract, are in English too.

Abstract
A review with 43 refs. covering adsorption of Ln(III) ions on Fe, Al, Mn or Si oxyhydroxides or on Al, Mg and Fe aluminosilicates, and the distribution coeffs. of Ln(III) ions between the aq. and the solid phase.

by Gladysz-Plaska and Majdan (2006) in PRZEMYSL CHEMICZNY

What’s hurt me, is Figure 4! Sorry for the quality, i will try to upgrade it!


Figure 4 (a) The log(distribution coefficient, Kd) for Ln(III) ions in the lanthanide series to the MnO2/Ln(III)-NaNO3 or MnO2/Ln(III)-NaCl systems, (b) log Kd for Ln(III) ions in the lanthanide series in the MnO2/Ln(III)-NaNO3-humic acid or MnO2/Ln(III)-NaCl- humic acid systems.7
by Gladysz-Plaska and Majdan (2006) in PRZEMYSL CHEMICZNY

Reference 7 in Gladysz-Plaska and Majdan (2006) is mine (Davranche et al., 2004), you’re going to tell me it’s not plagiarism. I don’t think so! Let’s have a closer look!

Data from Figure 4 in Gladysz-Plaska and Majdan (2006) are identical to data from Figures 3 and 4 in Davranche et al. (2004). Let’s see by yourself.

Fig. 3. Patterns of equilibrium logKdREEinorganic values derived from time-series experiments with aqueous solutions of NaNO3 (open symbols) and NaCl (full symbols). Note the slight positive Ce anomaly and the conspicuous lanthanide tetrad effect.
by Davranche et al. (2004)
Fig. 4. Patterns of equilibrium logKREEinorganic derived from time-series experiments with solutions of NaNO3 (open symbols) and NaCl (full symbols). Note the flatness of the logKdREE patterns.
by Davranche et al. (2004)

Moreover, in those figures HFO was replaced by MnO2. We also have published such results in our paper : Davranche et al. (2005)! It is not exactly the same!

Fig. 4. Log KdREEinorganic patterns between MnO2 suspension and NaCl or NaNO3 aqueous solution at pH 5 plotted vs. increasing atomic number within REE series, obtained after 12 d. Initial concentration of each REE was 5 ppb and solid phase concentration was 100 mg · L−1. Errors bars correspond to σ for two replicates, some errors bars are within the symbol size.
by Davranche et al. (2005)
Fig. 7. Log KdREEinorganic pattern in the suspension of MnO2 and NaCl or NaNO3 at pH 5 and 7.5. Errors bars correspond to σ for three replicates; some errors bars are within the symbol size.
by Davranche et al. (2005)

It’s may be fine to reproduce some data, but you have to do it well!

References

Davranche, M., Pourret, O., Gruau, G., Dia, A., 2004. Impact of humate complexation on the adsorption of REE onto Fe oxyhydroxide. Journal of Colloid and Interface Science, 277(2): 271-279. doi:10.1016/j.jcis.2004.04.007.

Davranche, M., Pourret, O., Gruau, G., Dia, A., Le Coz-Bouhnik, M., 2005. Adsorption of REE(III)-humate complexes onto MnO2: Experimental evidence for cerium anomaly and lanthanide tetrad effect suppression. Geochimica et Cosmochimica Acta, 69: 4825-4835. doi:doi:10.1016/j.gca.2005.06.005

Gladysz-Plaska, A., Majdan, M., 2006. The use of natural inorganic sorbents for adsorption of lanthanide ions. Przemysl Chemiczny, 85: 182-188.

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