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Retraction: Design, synthesis, and evaluation of a highly effective and safe perfluoro-alternative with a “weak site”: potassium 1,1,2,2,3,3,4,4-octafluoro-4-(perfluorobutoxy)butane-1-sulfonate
Rui
Guo
*ab,
Yangguang
Gao
c and
Guoxing
Liu
d
aHubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, Institute of Environment and Health, Jianghan University, Wuhan 430056, China. E-mail: chyungrui@163.com
bState Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
cInstitute for Interdisciplinary Research, Jianghan University, Wuhan 430056, China
dCollege of Science, Henan Agricultural University, Zhengzhou, Henan 450001, China
First published on 28th September 2022
Abstract
Retraction of ‘Design, synthesis, and evaluation of a highly effective and safe perfluoro-alternative with a “weak site”: potassium 1,1,2,2,3,3,4,4-octafluoro-4-(perfluorobutoxy)butane-1-sulfonate’ by Rui Guo et al., Green Chem., 2022, 24, 1114–1119, https://doi.org/10.1039/D1GC04536A.
We, the named authors, hereby wholly retract this Green Chemistry article due to concerns with the validity of the data presented.
In this article, the stability of F404K in the environment was investigated by measuring its degradation effected by H2O2. The degradation was measured by high resolution mass spectrometry data of the theoretical calculated value of C4F7O4S2−˙ (m/z = 276.93915). However, the ionic fragment (C4F7O4S2−˙) is also one of the mass fragments of the F404K standard; its relative abundance could be affected by values of collision voltage. We now doubt whether the ion peak detected following the degradation process of H2O2 is the degraded ion peak. Therefore, the degradation pathways in Fig. 5 should be further investigated and verified.
The conclusion “the ether bond in F404K can be destroyed by acid to give shorter-chain perfluoro compounds that are less toxic than PFOS and negatively affect the environment and human health to a lesser extent than PFOS” should be re-considered.
Signed: Rui Guo, Yangguang Gao and Guoxing Liu, 20th September 2022.
Retraction endorsed by Michael Rowan, Executive Editor, Green Chemistry.
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