Identification and quantitative determination of active pharmaceutical ingredients in suppositories by a combination of 1H NMR spectroscopy and desorption mass spectrometry

2014 ◽  
Vol 63 (8) ◽  
pp. 1848-1855 ◽  
Author(s):  
G. A. Kalabin ◽  
S. V. Goryainov ◽  
V. A. Ivlev ◽  
F. Yu. Niftullaev ◽  
R. A. Abramovich
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Quantitative Determination ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Active Pharmaceutical Ingredients ◽  
Desorption Mass Spectrometry ◽  
Pharmaceutical Ingredients

Quantitative determination of atractylon in Atractylodis Rhizoma and Atractylodis Lanceae Rhizoma by 1H-NMR spectroscopy

2010 ◽  
Vol 64 (2) ◽  
pp. 161-166 ◽  
Author(s):  
Keiko Hasada ◽  
Takamitsu Yoshida ◽  
Takeshi Yamazaki ◽  
Naoki Sugimoto ◽  
Tetsuji Nishimura ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Quantitative Determination ◽  
1H Nmr ◽  
1H Nmr Spectroscopy

Quantitative determination of glucose in blood plasma and in fruit juices by combined WATR-CPMG 1H NMR spectroscopy

1992 ◽  
Vol 64 (21) ◽  
pp. 2570-2574 ◽  
Author(s):  
Shiyan. Fan ◽  
W. Y. Choy ◽  
S. L. Lam ◽  
S. C. F. Au-Yeung ◽  
L. Tsang ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Quantitative Determination ◽  
Blood Plasma ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Fruit Juices ◽  
In Blood Plasma

scholarly journals Quantitative Determination of Carthamin in Carthamus Red by 1H-NMR Spectroscopy

2013 ◽  
Vol 61 (12) ◽  
pp. 1264-1268 ◽  
Author(s):  
Takamitsu Yoshida ◽  
Kazuyoshi Terasaka ◽  
Setsuko Kato ◽  
Fan Bai ◽  
Naoki Sugimoto ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Quantitative Determination ◽  
1H Nmr ◽  
1H Nmr Spectroscopy

scholarly journals New Sulfamides Based on 1-Izopropil-3-α-Naftyl-5- Methoxymethyl-4-Aminopyrazole and Determination of Their Structure

2019 ◽  
pp. 405-412
Author(s):  
Ilya G. Povarov ◽  
Nikita A. Shilenkov ◽  
Ekaterina V. Neupokoeva ◽  
Ivan V. Peterson ◽  
Georgy A. Suboch ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Hydrazine Hydrate ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Reduction Reaction ◽  
Composition And Structure ◽  
Modern Methods ◽  
Derivatives Of

For the previously obtained 1-isopropyl-3-α-naphthyl-5-methoxymethyl-4-nitrosopyrazole, a reduction reaction with hydrazine hydrate was performed. It was first synthesized by 1-isopropyl-3-α-naphthyl- 5-methoxymethyl-4-aminopyrazole which was then sulfonylated by p-acetamidobenzenesulfonyl chloride and p-toluenesulfonic chloride. As a result previously unknown sulfonylated derivatives of N-alkylated aminopyrazoles were obtained. The composition and structure are confirmed by modern methods of analysis such as IR, 1H NMR spectroscopy and mass spectrometry

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