Separation/preconcentration
A New Thioamide Derivative for Separation and Preconcentration of Multi Elements in Aquatic Environment by Cloud Point Extraction
... The CPE method was applied for the preconcentration and separation of Cu(II), Ni(II), Zn(II), Cd(II), Co(II), Pb(II), Fe(II) and Hg(II) in different water samples. Sur- face water samples were collected ...
13
Design, Synthesis and Application of SiO2 RATP Nanoparticles for Preconcentration and Separation of Trace Copper Ions: A Green Analytical Method
... [18] P.Liang, Q. Ding and F. Song, “Application of Multi- walled Carbon Nanotubes as Solid Phase Extraction Sor- bent for Preconcentration of Trace Copper in Water Sam- ples,” Journal of Separation Science, ...
7
← Return to Article Details PRECONCENTRATION AND SEPARATION OF ULTRA-TRACE AMOUNTS OF MERCURY(II) USING ULTRASOUND-ASSISTED CLOUD POINT-MICRO SOLID PHASE EXTRACTION BASED ON MODIFIED SILICA AEROGEL WITH [1-(3,5-DICHOLOROPHENYL)-3(2-ETHOXYPHENYL)] TRIAZENE
... applications, separation and preconcentration are still often recommended before detection due to its extremely low concentration in water ...membrane separation [14], ion exchange [15], solid phase ...
5
On-line preconcentration by analyte focusing micelle collapse in capillary electrophoretic separation of steroids
... UV absorbance detectors are the most popular among the CE detectors. Since the volume or length of the sample zone is very small (nanoliters or millimeters), it is essential to employ on-capillary detection methods in ...
38
Determination of Cadmium by Electrothermal Atomic Absorption Spectrometry after its Separation and Preconcentration by Syringe to Syringe Dispersive Liquid Phase Microextraction-Solidified Floating Organic Drop
... The application of syringe to syringe dispersive liquid phase microextraction-solidified floating organic drop was extended for the separation and preconcentration of trace amounts of cadmium ions from ...
11
Application of Modified Nanoclay Sorbent for Separation and Preconcentration Trace Amount of Cobalt
... the separation and preconcentration of the ion of interest in order to enhance the detection limit, selectivity and, thereby, to improve the precision and accuracy of ...
7
Use of Ionic Liquids for Preconcentration/Separation of Diazinon by In Situ Solvent Formation Microextraction (ISFME) and Measurement by the UV-Vis Spectrophotometer
... specimens in samples containing salt, and extraction and separation of metal ions in sewage and environmental samples. Recently, many of the mineral specimens such as the copper, lead, mercury, cadmium, arsenic, ...
8
Optimization of Low Amounts of Selenium Ions in Water and Blood Samples by Solid Phase Extraction Using Thiolated Nanosilica
... for preconcentration of mercury using solid phase extraction and spectrophotometric ...for separation and preconcentration of low selenium levels from biological and water ...
6
Ultrasound-assisted emulsification microextraction and preconcentration of trace amounts of silver ions as a cyclam complex
... process between two immiscible phases (Ozcan et al. 2009). This leads to an increase in the extraction efficiency of the method within a minimum span of time (Luque de Castro and Priego-Capote 2006 and Khayatian and ...
8
Evaluation of thallium rate in soil after dispersive liquid-liquid micro-extraction
... for eight hours is equal to 40 working hours a week. It is suspected of being a carcinogen in human beings. It was used often used as a murder poison when its antidote, Prussian blue, had not yet been discovered (Gao et ...
5
Preconcentration Feasibility of Gravity and Magnetic Techniques for Banded Hematite Jasper
... The pre-concentration of iron values in Banded Hematite Jasper can be achieved through gravity and dry high intensity magnetic separation. The pre- concentration efficiency of both gravity and magnetic techniques ...
8
Review of procedures involving separation and Solid Phase Extraction for the determination of cadmium using spectrometric techniques
... One of the most efficient separation and enrichment methods for heavy metal ions is also coprecipitation. In this technique, the collector should be easily separated from the matrix solution. This can be done by ...
18
Detection and Determination of some Migrated Chemicals from Plastic Containers into Different Drinks and Liquids Using Dispersive Liquid-liquid Microextraction Prior to Gas Chromatography
... and preconcentration of the migrated compounds prior to their detection and determination by gas chromatography equipped with mass spectrometry or flame ionization ...
18
Determination of Amitraz in the Honey Samples by Dispersive Liquid Liquid Microextraction Followed by Gas Chromatography—Flame Ionization Detection
... phase separation was performed by centrifugation and the concentrated amitraz in the sedimented phase was determined by gas chromatography—flame ionization detection ...6) preconcentration factor and the ...
6
Preconcentration and frontal electroelution of amino acids for in line solid phase extraction–capillary electrophoresis
... The strong electrolyte must be able to elute the analytes from the SPE monolith by suppression of both the ion-exchange and reverse-phase interactions. Suppression of the ion-exchange component can be achieved by varying ...
6
Development of an Analytical Method for Taste and Odor Compounds Commonly Found in Drinking Water Sources
... Instrumental methods of analysis have the advantage of objectivity, repeatability, and accuracy. Instrumental methods are able to confirm the identity and quantity of the compound responsible for the T&O problem. ...
90
Graphene Oxide Nanosheets Modified with 8-Hydroxylquinoline for the Solid Phase Extraction, Preconcentratrion and Flame Atomic Absorption Spectrometric Determination of Copper in Black Tea, Rice and Red Pepper Samples
... for separation and preconcentration of metal ions in environmental samples has been developed and widely utilized because of its higher enrichment factors, simplicity, absence of emulsion, safety with ...
11
Speciative Determination of Dissolved Inorganic Fe(II), Fe(III) and Total Fe in Natural Waters by Coupling Cloud Point Extraction with FAAS
... limitations. Separation–preconcentration procedures including liquid–liquid extraction [27-28], cloud point extraction (CPE) [29-30], coprecipitation [31], ion- exchange [32] and electro-analytical methods ...
12
Development of an Eco-Friendly Method for Iron Extraction and Determination in Pharmaceuticals Using Ciprofloxacin Drug as Chelating agent Zuhair A-A Khammas | Noora S. Mubdir
... The effect of the equilibrium temperature and incubation time are examined due to their importance for the reaction completion and efficient separation of the phases, which reflect certainly the magnitude of ...
12
Hollow-Fiber liquid-phase Microextraction Followed by High Performance Liquid Chromatography for the Determination of Trace Amounts of Methylphenidate Hydrochloride in Biological Fluids
... Sample preparation steps should be used for determination of the drug in biological samples in all of these methods. It is difficult to obtain low detection limits without sample preparation steps. We believe that ...
11