The simultaneous determmatlon of theophylhne and paraxanthme m urine samples by the H-pomt standard additions method (HPSAM) IS described Samples are extracted with Cl, solid-phase extraction cartndges and chromatographed using a Hypersd Cl,-ODS column and a mobile phase conslstmg of acetomtnle-phos
✦ LIBER ✦
Sampling-standardized expansion and collapse of reef building in the Phanerozoic
✍ Scribed by Wolfgang Kiessling*
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 251 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1435-1943
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Determination of theophylline and paraxa
✍
Pilar Campíns-Falcó; Francisco Bosch-Reig; Rosa Herráez-Hernández; Adela Sevilla
📂
Article
📅
1992
🏛
Elsevier Science
🌐
English
⚖ 631 KB
A routine method for the determination o
✍
Kåre Julshamn; Knut-Jan Andersen; Yngvar Willassen; Olaf R. Braekkan
📂
Article
📅
1978
🏛
Elsevier Science
🌐
English
⚖ 404 KB
A further study on the combined use of i
✍
Yuhki Tsukamoto; Tomofumi Santa; Hiroo Yoshida; Hiroshi Miyano; Takeshi Fukushim
📂
Article
📅
2006
🏛
John Wiley and Sons
🌐
English
⚖ 313 KB
👁 2 views
The combined use of a so-called internal standard and the isotope-labeled derivatization reagent for the quantification of analytes for liquid chromatography-mass spectrometry (LC/MS) was further studied. The sample solution (containing the analytes and an internal standard) was derivatized with the
A rapid and specific HPLC-electrochemica
✍
M. D. Lucock; R. Hartley; R. W. Smithells
📂
Article
📅
1989
🏛
John Wiley and Sons
🌐
English
⚖ 652 KB
The “CO-FE-CU” fluids and certain pharma