Results 21 to 30 of about 312,413 (279)

A Robust Flow-Based System for the Spectrophotometric Determination of Cr(VI) in Recreational Waters

Molecules, 2022
A flow-based method for the spectrophotometric determination of chromium (VI) in recreational waters with different salinities was developed. Chromium can occur in the environment in different oxidation states with different related physiological ...
Tânia C. F. Ribas, Raquel B. R. Mesquita, Ana Machado, Joana L. A. Miranda, Graham Marshall, Adriano Bordalo, António O. S. S. Rangel   +6 more
doaj   +1 more source

Optimization of micro sequential injection analysis

BUNSEKI KAGAKU, 2003
掲載論文の取り消しについて 取消論文: 西浜章平，吉塚和治, Louis Scampavia and Jaromir Ruzicka: 分析化学(Bunseki Kagaku), 52(12), 1187-1192 (2003). "マイクロシーケンシャルインジェクション分析法の最適化" (Received 16 July 2003, Accepted 10 September 2003)「分析化学」編集委員会及び著者は、上記論文が先に投稿された下記の論文と重複していることから取り消すことに決定致しました。したがって、上記論文を今後引用することのないようにご注意ください。 先行論文: Syouhei Nishihama, Louis Scampavia and Jaromir Ruzicka: J.
Syouhei NISHIHAMA, Kazuharu YOSHIZUKA, Louis SCAMPAVIA, Jaromir RUZICKA   +3 more
openaire   +3 more sources

Sequential injection analysis system with spectrophotometric detection for determination of norfloxacin and ciprofloxacin in pharmaceutical formulations

Química Nova, 2011
This work proposes a sequential injection analysis (SIA) system for the spectrophotometric determination of norfloxacin (NOR) and ciprofloxacin (CIP) in pharmaceutical formulations.
José Luiz Rufino, Helena Redigolo Pezza, Leonardo Pezza, Paula C. A. G. Pinto, M. Lúcia M. F. S. Saraiva, José L. F. C. Lima   +5 more
doaj   +1 more source

Automated online preconcentration system for the determination of trace amounts of lead using Pb-selective resin and inductively coupled plasma-atomic emission spectrometry [PDF]

, 2006
An automated sequential-injection online preconcentration system was developed for the determination of lead by inductively coupled plasma - atomic emission spectrometry (ICP-AES). The preconcentration of lead was performed with a minicolumn containing a
A. Sabarudin, Economou A., N. Lenghor, S. Motomizu, Y. Furusho, Y. Liping   +5 more
core   +1 more source

Use of a Polymer Inclusion Membrane and a Chelating Resin for the Flow-Based Sequential Determination of Copper(II) and Zinc(II) in Natural Waters and Soil Leachates

Molecules, 2020
A bi-parametric sequential injection method for the determination of copper(II) and zinc(II) when present together in aqueous samples was developed. This was achieved by using a non-specific colorimetric reagent (4-(2-pyridylazo)resorcinol, PAR) together
Tânia C. F. Ribas, Charles F. Croft, M. Inês G. S. Almeida, Raquel B. R. Mesquita, Spas D. Kolev, António O. S. S. Rangel   +5 more
doaj   +1 more source

Analytical methods in wineries: is it time to change? [PDF]

, 2005
A review of the methods for the most common parameters determined in wine—namely, ethanol, sulfur dioxide, reducing sugars, polyphenols, organic acids, total and volatile acidity, iron, soluble solids, pH, and color—reported in the last 10 years is ...
Andersen S. K., Anon, Arnes S., Belton P. S., Bi L. J., Billingsley A., Cardwell T. J., Cardwell T. J., Chen S. G., Chmilenko F. A., Cserhati T., Dai G. S., Dell´Oro V., Edberg U., Escobal A., Fang G. Z., Feng Z., Ga R. D., Gao Z. F., González-Rodríguez J., Guan J. R., Hu J. Y., J. González-Rodríguez, Kaufmann A., Kawamura Y., Kosir I. J., Kupina S. A., Lodi G., Luo H. Q., M. D. Luque de Castro, Mannino S., Miao J. G., Mou S., Olalla M., P. Pérez-Juan, Patz C. D., Polo M. C., Rapp A., Ribereau-Gayon J., Scollary G. R., Sebecic B., Vereda-Alonso E., Wang J. H., Wang J. S., Wang X. H., Wu X., Wu X. L., Yan J., Yu H., Zhang W., Zhang W., Zhou H.   +51 more
core   +1 more source

A review on sequential injection methods for water analysis [PDF]

Analytica Chimica Acta, 2009
The development of fast, automatic and less expensive methods of analysis has always been the main aim of flow methodologies. The search for new procedures that still maintain the reliability and accuracy of the reference procedures is an ever growing challenge.
Mesquita, Raquel B. R., Rangel, António O.S.S.   +1 more
openaire   +3 more sources

Sequential Spectrophotometric determination of methanol and iron in vinegar by a flow injection-pervaporation method [PDF]

, 2002
An easily automatable sequential flow-injection-pervaporation method is proposed for the photometric determination of methanol and iron in vinegar. The method is based on separation of the methanol from the sample matrix by pervaporation followed by its ...
Gonzalez-Rodriguez, Jose, Luque de Castro, Maria Dolores, Perez-Juan, Pedro   +2 more
core   +1 more source

A sequential injection system for spectrophotometric determination of ketoconazole [PDF]

Maejo International Journal of Science and Technology, 2014
Sequential injection analysis (SIA) with spectrophotometric detection is used for a fast determination of ketoconazole in pure and pharmaceutical preparations. The developed method is based on oxidation of ketoconazole with cerium ion
Safwan M. Fraihat
doaj   +1 more source

Is acupoint injection the optimal way to administer mecobalamin for diabetic peripheral neuropathy? A meta-analysis and trial sequential analysis

Frontiers in Neurology, 2023
ObjectiveMecobalamin is a commonly used drug in the treatment of diabetic peripheral neuropathy (DPN). This study aimed to systematically evaluate the efficacy and safety of acupoint injection of mecobalamin for DPN.MethodsRelevant clinical trials on ...
Fei Zhang, Yunfeng Yu, Yunfeng Yu, Shuang Yin, Gang Hu, Xinyu Yang, Keke Tong, Rong Yu   +7 more
doaj   +1 more source