scholarly journals Acid hydrolysis of composites based on corn starch and trimethylene glycol as plasticizer

2016 ◽  
Vol 16 (1) ◽  
pp. 169-178
Author(s):  
C. Hernández-Jaimes ◽  
◽  
M. Meraz ◽  
V.H. Lara ◽  
G. González-Blanco ◽  
...  
2014 ◽  
Vol 103 ◽  
pp. 596-602 ◽  
Author(s):  
R.G. Utrilla-Coello ◽  
C. Hernández-Jaimes ◽  
H. Carrillo-Navas ◽  
F. González ◽  
E. Rodríguez ◽  
...  

2018 ◽  
Vol 66 (25) ◽  
pp. 6357-6363 ◽  
Author(s):  
Yaqian Shang ◽  
Chen Chao ◽  
Jinglin Yu ◽  
Les Copeland ◽  
Shuo Wang ◽  
...  

2013 ◽  
Vol 60 (2) ◽  
pp. 123-130 ◽  
Author(s):  
Yuya Nagahata ◽  
Isao Kobayashi ◽  
Masaru Goto ◽  
Yoshiko Nakaura ◽  
Naoyoshi Inouchi

Author(s):  
Nádya da Silveira ◽  
Roberta Zucatti ◽  
Andrielle Vailatti ◽  
Daiani Leite

2020 ◽  
Vol 98 ◽  
pp. 105249 ◽  
Author(s):  
Marco Ulbrich ◽  
Jana Maria Daler ◽  
Eckhard Flöter

2019 ◽  
Vol 219 ◽  
pp. 172-180 ◽  
Author(s):  
Marco Ulbrich ◽  
Jana Maria Daler ◽  
Eckhard Flöter

LWT ◽  
2017 ◽  
Vol 79 ◽  
pp. 11-20 ◽  
Author(s):  
Jun-jie Xing ◽  
Yi Liu ◽  
Dong Li ◽  
Li-jun Wang ◽  
Benu Adhikari

1962 ◽  
Vol 41 (2) ◽  
pp. 234-246 ◽  
Author(s):  
H. J. van der Molen

ABSTRACT A procedure for the quantitative determination of 5β-pregnan-3α-ol-20-one in urine is described. After acid hydrolysis of the pregnanolone-conjugates in urine, the free steroids are extracted with toluene. Pregnanolone is isolated in a pure form as its acetate; after chromatographic separation of the free steroids on alumina, the fraction containing pregnanolone is acetylated and rechromatographed on alumina. Quantitative determination of the isolated pregnanolone-acetate is carried out with the aid of the infrared spectrum recorded by a micro KBr-wafermethod. The reliability of the method under various conditions is discussed under the headings, specificity, accuracy, precision and sensitivity. It is possible to determine 30–40 μg pregnanolone in a 24-hours urine portion with a precision of 25%.


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