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Items: 1 to 20 of 205

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2.

Development and validation of a high-performance liquid chromatography-mass spectrometry assay for methylxanthines and taurine in dietary supplements.

Marchei E, Pellegrini M, Pacifici R, Palmi I, Pichini S.

J Pharm Biomed Anal. 2005 Mar 9;37(3):499-507. Epub 2004 Dec 15.

PMID:
15740910
3.

HPLC determination of caffeine and theophylline in Paullinia cupana Kunth (guarana) and Cola spp. samples.

Belliardo F, Martelli A, Valle MG.

Z Lebensm Unters Forsch. 1985 May;180(5):398-401.

PMID:
4013524
4.

Development of an analytical method using reversed-phase HPLC-PDA for a semipurified extract of Paullinia cupana var. sorbilis (guaraná).

Klein T, Longhini R, de Mello JC.

Talanta. 2012 Jan 15;88:502-6. doi: 10.1016/j.talanta.2011.11.023. Epub 2011 Nov 10.

5.

Liquid chromatographic determination of dehydroepiandrosterone (DHEA) in dietary supplement products.

Thompson RD, Carlson M, Thompson RD, Carlson M.

J AOAC Int. 2000 Jul-Aug;83(4):847-57.

PMID:
10995111
6.

Simultaneous HPLC determination of caffeine, theobromine, and theophylline in food, drinks, and herbal products.

Srdjenovic B, Djordjevic-Milic V, Grujic N, Injac R, Lepojevic Z.

J Chromatogr Sci. 2008 Feb;46(2):144-9.

PMID:
18366874
7.

[Rapid determination of theophylline, theobromine and caffeine in dietary supplements containing guarana by ultra-performance liquid chromatography].

Hasegawa T, Takahashi K, Saijo M, Ishii T, Nagata T.

Shokuhin Eiseigaku Zasshi. 2009 Dec;50(6):304-10. Japanese.

8.

In vitro transdermal delivery of caffeine, theobromine, theophylline and catechin from extract of Guarana, Paullinia Cupana.

Heard CM, Johnson S, Moss G, Thomas CP.

Int J Pharm. 2006 Jul 6;317(1):26-31. Epub 2006 Apr 4.

PMID:
16600539
9.

A rapid simultaneous determination of methylxanthines and proanthocyanidins in Brazilian guaraná (Paullinia cupana Kunth.).

Machado KN, Freitas AA, Cunha LH, Faraco AAG, Pádua RM, Braga FC, Vianna-Soares CD, Castilho RO.

Food Chem. 2018 Jan 15;239:180-188. doi: 10.1016/j.foodchem.2017.06.089. Epub 2017 Jun 16.

PMID:
28873557
10.

Determination of methylxanthines in urine by liquid chromatography with diode array UV detection.

Zambonin CG, Aresta A, Palmisano F.

J Pharm Biomed Anal. 2004 Nov 15;36(3):621-4.

PMID:
15522539
11.

Rapid determination of methylxanthines in real samples by high-performance liquid chromatography using the new FastGradient narrow-bore monolithic column.

Tzanavaras PD, Zacharis CK, Themelis DG.

Talanta. 2010 Jun 15;81(4-5):1494-501. doi: 10.1016/j.talanta.2010.02.058. Epub 2010 Mar 3.

PMID:
20441929
12.

[Determination of catechins and caffeine in tea and tea beverages by high-performance liquid chromatography].

Ling Y, Zhao YF, Li ZJ, Zhang G, Wu Y.

Wei Sheng Yan Jiu. 2005 Mar;34(2):187-90. Chinese.

PMID:
15952660
13.

Liquid chromatographic determination of cetirizine in oral formulations.

Bajerski L, Cardoso SG, Diefenbach IF, Malesuik MD, Sílvia H, Borgmann M.

J AOAC Int. 2005 Mar-Apr;88(2):424-7.

PMID:
15859066
14.
15.

HPLC analysis of methylxanthines in human breast milk.

Blanchard J, Weber CW, Shearer LE.

J Chromatogr Sci. 1990 Dec;28(12):640-2.

PMID:
2292610
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