Synthesis and characterization of dibutyltetramethyldisilazane-bonded silica phases for reversed-phase high-performance liquid chromatography

1991 ◽  
Vol 63 (17) ◽  
pp. 1861-1867 ◽  
Author(s):  
Renen. Zhang ◽  
Zemin. Xie ◽  
Rui. Zhao ◽  
Xiaohua. Li ◽  
Guoquan. Liu ◽  
...  
2007 ◽  
Vol 1176 (1-2) ◽  
pp. 79-88 ◽  
Author(s):  
Francesco Gasparrini ◽  
Alessia Ciogli ◽  
Ilaria D’Acquarica ◽  
Domenico Misiti ◽  
Elena Badaloni ◽  
...  

2001 ◽  
Vol 911 (1) ◽  
pp. 13-26 ◽  
Author(s):  
E.C Vonk ◽  
B.M.W Langeveld-Voss ◽  
J.L.J van Dongen ◽  
R.A.J Janssen ◽  
H.A Claessens ◽  
...  

2008 ◽  
Vol 5 (3) ◽  
pp. 562-566
Author(s):  
Singamsetty Radha Krishna ◽  
Mandava Venkata Naga Brahmeshwar Rao ◽  
Tirmalaraju Satyanaryana Raju ◽  
Vurimidi Himabindu ◽  
Ghanta Mahesh Reddy

Three unknown impurities in rosiglitazone maleate 1 bulk drug at level below 0.1% (ranging from 0.05 to 0.1%) were detected by simple reverse phase high performance liquid chromatography. These impurities were preliminarily identified with LC-MS and characterized by the mass number of the impurities. Different experiments were conducted and finally synthesized and characterized the unknown impurities.


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