Fast and direct determination of butylated hydroxyanisole in biodiesel by batch injection analysis with amperometric detection
نویسندگان
چکیده
منابع مشابه
DETERMINATION OF AMOXYCYLLIN AND CLAVULANIC ACID IN PHARMACEUTICAL DOSAGE FORMS BY HPLC WITH AMPEROMETRIC DETECTION
A simple and sensitive high performance liquid chromatographic method with electrochemical detection is described for the quantitative determination of the amoxycillin and clavulanic acid in pharmaceutical dosage forms. Separation of sample components occurs on a reversed phase C18 column with a mobile phase consisting of methanol-water-phosphate buffer. For the amperometric detection, the pote...
متن کاملVoltammetric Characteristics and Application in Batch Injection Analysis with Amperometric Detection
Thin-film gold electrodes were produced by radio-frequency sputtering using a polyvinyl chloride foil as substrate. The voltammetric behavior was characterized in various electrolyte solutions. In alkaline and neutral aqueous solutions reliable voltammetric measurements can be performed while in acidic media some nondefined phenomena occur. A novel type of electrode for batch injection analysis...
متن کاملBatch-injection analysis with amperometric detection of the DPPH radical for evaluation of antioxidant capacity.
This work proposes the application of batch-injection analysis with amperometric detection to determine the antioxidant capacity of real samples based on the measurement of DPPH radical consumption. The efficient concentration or EC50 value corresponds to the concentration of sample or standard required to scavenge 50% DPPH radicals. For the accurate determination of EC50, samples were incubate...
متن کاملDirect determination of free cyanide in drinking water by ion chromatography with pulsed amperometric detection.
Cyanide is a regulated contaminant in drinking water in the United States. This paper describes an ion chromatography method with pulsed amperometric detection (PAD) that directly determines free cyanide in drinking water. Samples are treated with sodium hydroxide to stabilize cyanide and with a cation-exchange cartridge to remove transition metals. Cyanide is separated by anion-exchange chroma...
متن کاملDetermination of Sildenafil Citrate (Viagra®) in Various Pharmaceutical Formulations by Flow Injection Analysis with Multiple Pulse Amperometric Detection
O presente trabalho apresenta uma metodologia simples, rápida e de baixo custo para a determinação de citrato de sildenafila (SC) em formulações farmacêuticas de referência (Viagra) e em produtos similares, genéricos e manipulados, por amperometria de múltiplos pulsos em sistema FIA (análise por injeção em fluxo). O método consiste na aplicação de três pulsos de potencial (sequenciais) em funçã...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Talanta
سال: 2011
ISSN: 0039-9140
DOI: 10.1016/j.talanta.2011.06.008