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A new micellar mediated cloud-point extraction procedure for sensitive and selective determination of trace amounts of total iodine in Milk-based nutritional products by means of indirect spectrophotometry
(2015)
A new micellar mediated cloud-point extraction procedure (CPE) has been developed for sensitive and selective determination of trace amounts of total iodine by means of indirect spectrophotometry. The method is based on ...
Development of a new analytical methodology based on the catalytic effect of AG(I) in a new fuchsin-peroxodisulfate-1,10-phenantroline system: Application to the determination of trace amounts of silver
(2014)
A simple, rapid and sensitive kinetic spectrophotometric method is proposed for the determination of trace amounts of silver ion in the concentration ranges of 2-20 and 20-50 ?g L-1. The proposed method is based on the ...
A new simple UV-Vis spectrophotometric method for determination of sulfite species in vegetables and dried fruits using a preconcentration process
(2016)
A new eco-friendly, selective and sensitive method was developed for preconcentration and determination of trace levels of sulfite by ultrasonic-assisted cloud point extraction (UA-CPE). The method is based on the selective ...
Micellar sensitized catalytic kinetic spectrophotometry for highly accurate and reproducible determination of V(IV) and V(V)
(2014)
A highly accurate and reproducible micellar sensitized kinetic method was proposed for determination of V(VI). The method is based on its catalytic effect on the oxidation of Coomassie brilliant blue R 250 (CBB+) by bromate ...
A micellar sensitized kinetic method for quantification of low levels of bisphenol A in foodstuffs by spectrophotometry
(Royal Society of Chemistry, 2017)
In the current study, because of its potential to leach out into foodstuffs as a result of food contact uses, a new kinetic method for the monitoring and determination of bisphenol A in foods by spectrophotometry for a ...
Determination of low levels of molybdenum (VI) in food samples and beverages by cloud point extraction coupled with flame atomic absorption spectrometry
(2013)
Cloud point extraction (CPE) was used for the preconcentration of molybdenum (Mo), after the formation of a complex with Victoria pure blue BO (VPB+) in presence of excess thiocyanate and cetylpyridinium chloride (CPC) at ...
Development of a new analytical method for Pb preconcentration and its further determination in water and foodstuffs using relatively low-sensitivity flame atomic absorption spectrometry
(Taylor and Francis Ltd., 2019)
The present study describes chelation of Pb(II) with ascorbic acid and formation of a charge-transfer sensitive ion-pair in the presence of Rhodamine 6G at pH 5.5, and then its extraction to the micellar phase of non-ionic ...
A simple, inexpensive and convenient procedure for determination of inorganic Sb species in milk and beverage samples in PET containers by flame atomic absorption spectrometry
(2015)
A simple and efficient Cloud Point Extraction (CPE) method has been proposed for separation and preconcentration of inorganic Sb species. The method is based on stable hydrophobic complex formation of Sb(iii and v) with ...
A new preconcentration procedure to quantify total acid hydrolyzed fluoride in selected beverages and foods by spectrophotometry
(2015)
A new micellar-mediated, cloud-point extraction (CPE) method has been developed for the quantification of trace levels of fluoride by means of spectrophotometry. The method is based on the selective ion association of ...
Natural deep eutectic solvent-based ultrasound-assisted-microextraction for extraction, pre-concentration and analysis of methylmercury and total mercury in fish and environmental waters by spectrophotometry
(Taylor and Francis Ltd., 2019)
In this study, a simple, pH-controlled, and natural deep eutectic solvent-based microextraction (NADES-ME) procedure is proposed before the spectrophotometric analysis of methylmercury (MeHg) and total mercury in fish and ...