Solubility of dilute SO 2 in binary system of polyethylene glycol 200 and dimethyl sulfoxide as a function of liquid composition and system's spectroscopic studies

2017 ◽  
Vol 225 ◽  
pp. 151-159 ◽  
Author(s):  
Tianxiang Zhao ◽  
Xi Feng ◽  
Wentao Zheng ◽  
Xingbang Hu ◽  
Jianbin Zhang ◽  
...  
2015 ◽  
Vol 54 (3) ◽  
pp. 411-421 ◽  
Author(s):  
Xinxin Ju ◽  
Tianxiang Zhao ◽  
Feng Sha ◽  
Bo Guo ◽  
Xiaohong Xie ◽  
...  

2015 ◽  
Vol 207 ◽  
pp. 315-322 ◽  
Author(s):  
Tianxiang Zhao ◽  
Jianbin Zhang ◽  
Bo Guo ◽  
Fei Zhang ◽  
Feng Sha ◽  
...  

2019 ◽  
Vol 54 (4) ◽  
pp. 391-396
Author(s):  
Wilko Thiele ◽  
Lenka Kyjacova ◽  
Almut Köhler ◽  
Jonathan P Sleeman

The parenteral administration of hydrophobic substances in vivo requires the use of organic solvents to ensure sufficient solubility and avoid precipitation. Dimethyl sulfoxide is commonly used for this purpose. Based on the common assumption that polyethylene glycol (PEG) is non-toxic, our local regulatory authorities recently recommended the use of PEG instead. However, mice injected intraperitoneally (i.p.) with PEG 200 at a dose of 8 mL/kg (i.e. 9 g/kg) did not tolerate PEG 200 well, and half of the animals had to be euthanized. Our results demonstrate that although PEG 200 is generally considered to be harmless, it can be toxic when injected i.p. and is painful for the recipient mice. Nevertheless, it can be used as a solvent for repeated i.p. injections in mice at a dose of 2 mL/kg (i.e. 2.25 g/kg) without obvious signs of systemic toxicity.


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