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Sources of errors in the quantitative analysis of food carotenoids by HPLC
(Archivos Latinoamericanos Nutricion, 1999-09-01)
Several factors render carotenoid determination inherently difficult. Thus, in spite of advances in analytical instrumentation, discrepancies in quantitative results on carotenoids can be encountered in the international ...
Comparison of GC and HPLC for the quantification of organic acids in coffee
(Phytochemical Analysis, 2017)
Voltammetric behaviour of ketorolac and its HPLC-EC determination in tablets
(Taylor and Francis Inc., 1997)
Ketorolac is an antiinflammatory-analgesic agent that is oxidizable at the glassy carbon electrode. The voltammetric oxidation produces two well resolved pH-dependent peaks, that are overlapped at pH>10. Using this ...
Extração por fluido supercrítico de alguns inseticidas carbamatos em amostras de batata, com determinação por HPLC/fluorescência e confirmação por HPLC/espectrometria de massas
(Sociedade Brasileira de Química, 2002-05-01)
Six supercritical fluid extraction (SFE) methods were tested, by varying the following operational parameters: CO2 pressure, time and temperature of extraction, type and proportion of static modifier, and Hydromatrix®/sample ...
Extração por fluido supercrítico de alguns inseticidas carbamatos em amostras de batata, com determinação por HPLC/fluorescência e confirmação por HPLC/espectrometria de massas
(Sociedade Brasileira de Química, 2002-05-01)
Six supercritical fluid extraction (SFE) methods were tested, by varying the following operational parameters: CO2 pressure, time and temperature of extraction, type and proportion of static modifier, and Hydromatrix®/sample ...
A simple and fast procedure for fenoxycarb determination in pesticide formulations based on infrared spectrometry
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2011)
Chemometric optimization and validation of a novel dispersive liquid liquid microextraction HPLC method for gliclazide, glibenclamide and glimepiride quantitation in serum samples
(Elsevier, 2016)
A dispersive liquid–liquid micro extraction (DLLME) liquid chromatographic method that allows extraction and separation of gliclazide, glibenclamide and glimepiride from serum was developed and optimized with the use of ...
Hydrolytic degradation of nitrendipine and nisoldipine
(PERGAMON-ELSEVIER SCIENCE LTD, 2002-06-01)
The development of a new HPLC-UV diode array procedure applied to follow the hydrolytic degradation of two well-known 4-nitrophenyl-1,4-dihydropyridine derivatives, nitrendipine and nisoldipine is reported. Hydrolysis of ...