An ion-pairing high-performance liquid chromatographic method for the determination of N-acetylaspartate and N-acetylglutamate using a C-18 column and a UV detection at 210 nm wavelength, by means of a diode array detector, is presented. A buffer containing 2.8 mM tetrabutylammonium hydroxide, 25 mM
Ion-pairing high-performance liquid chromatographic method for the determination of 5-aminosalicylic acid and related impurities in bulk chemical
β Scribed by Brian S. Kersten; Tom Catalano; Yury Rozenman
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 567 KB
- Volume
- 588
- Category
- Article
- ISSN
- 1873-3778
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## Abstract (+)βPinoresinol 4,4β²βdiβ__O__βΞ²__β__Dβglucopyranoside ((+)βPDG) is one of the major lignans with various pharmacological activities which could be isolated from Duzhong and other plant species. In this study, a diastereomeric impurity, (β)βpinoresinol 4,4β²βdiβ__O__βΞ²__β__Dβglucopyranosi