Membrane protected micro solid phase extraction of pharmaceuticals from environmental water samples

... Liquid-liquid extraction LOD Limit of detection LOQ Limit of quantification muSPE Micro solid phase extraction using mixed matrix membrane μ-SPE Membrane bag micro solid phase extraction MPME Membrane protected ... Membrane- assisted micro- solid phase extraction (μ-SPE) is a recently introduced sample preparation technique that integrates microextraction...

Ngày tải lên: 10/09/2015, 09:12

... phase extraction of cadmium(II) and lead(II) as their 1- phenyl- 1Htetrazole -5- thiol on Diaion SP- 207 resin 7 21 HNO3 and water, sequentially 0.3% (m/V) solution of 1phenyl- 1H- tetrazole- 5- thiol ... recoveries of cadmium(II) and lead(II)- 1- phenyl- 1H- tetrazole- 5- thiol chelates on Diaion SP2 07 resin at the pH range of 3.0–8.0...

Ngày tải lên: 02/09/2015, 13:45

... Application of the silica monolith as solid phase extraction cartridge for the extraction of epinephrine, metanephrine and normetanephrine from urine  Application of the silica monolith as solid ... monolith as solid phase extraction cartridge for the extraction of ketamine from urine  Application of the silica monolith as solid...

Ngày tải lên: 10/09/2015, 15:50

... Evaluation of Alkyl Halides in the Synthesis of Unnatural Amino Acids .43 3.3 Combinatorial Synthesis of N-Carboxyalkyl Amino Acid Analogs 44 3.4 Deprotection of Benzyl-Protected N-Carboxyalkyl Amino ... 2010, Solid-Phase Synthesis of N-Carboxyalkyl Unnatural Amino Acids Major Professor: Martin J 9^/NMMEKl, Ph.D A novel route has been developed for the...

Ngày tải lên: 24/08/2014, 13:46

... example of a highly regioselective solid- phase synthesis of 1,7-disubstituted-6-oxopurine derivatives The third project centers on widening the solid- phase synthesis of purines based on the purine ... reports the development of novel methodologies for the solid- phase synthesis of purine derivatives The first project involves the solid- phase synthesis...

Ngày tải lên: 15/09/2015, 17:09

... HFCLM Hollow fiber contained liquid membrane HFMB Hollow fiber membrane bioreactor HFRLM Hollow fiber renewal liquid membrane HFSLM Hollow fiber supported liquid membrane HFSLMB Hollow fiber ... concentration profiles of biomass and phenol concentrations during twophase biodegradation of 1000 mg/L phenol in the HFSLMB 118 xii Figure 6.2 Two- phase bio...

Ngày tải lên: 30/09/2015, 06:22

... an effort to develop an effective extraction method for bioflocculants from the microbial cell surface Materials and Methods Activated sludge samples Activated sludge samples were collected from ... was the most effective extraction method for activated sludge However, cell disruption is not effective for the isolation of bioflocculants Thus, NaOH extr...

Ngày tải lên: 05/09/2013, 09:08

... anthocyanin and phenolic concentrations during anthocyanin extraction from purple- fleshed ISPs In addition, the effect of initial extraction conditions on the production of fermentable sugars from purple- fleshed ... Samples 3.1 Extraction of anthocyanins and subsequent hydrolysis of ISP residues The analysis of variance (ANOVA) for the main and interactio...

Ngày tải lên: 05/05/2014, 08:39

... different columns from low to high contents of curcumin The cyclic chromatographic extraction reduced extensively the volumes of the solvent and the final extraction solution with high extraction ... Natural Science Fund (10151063101000002) References Fig Column- chromatographic extraction of curcumin from turmeric A: Extraction of curcumin from turmeric...

Ngày tải lên: 01/07/2014, 13:23

... green tea (humility usually from to %) 3.1.3.Effect of radiation time on the extraction of polyphenols Polyphenols concentration in the extracts was rapidly increased in the first minutes of extraction ... Microwave-assisted extraction of tea polyphenols and tea caffeine from green tea leaves, Chemical engineering and processing 42, 129 – 133, 2003 [9] Carmen W H...

Ngày tải lên: 22/07/2014, 10:21

... silicon carbide whiskers from RH (Sujiroti & Leangsuwan, 2003) and of cellulose whiskers from rice straws (Orts et al., 2005) So, the fractionation of lignocellulosic materials of rice husks into ... 2009) and coconut husks (Rosa et al., 2010) As far as we know, the isolation of cellulose whiskers from rice husk sources has not been yet described in the literat...

Ngày tải lên: 08/10/2014, 06:05

... challenges of scene text and video text are listed in Table 2.1 While the majority of the challenges are common to both scene text and video text, some of them are applicable to only one type of text ... text extraction in images and videos We formally define the problem and the scope of study in the next section 1.1 Problem Description and Scope of Stud...

Ngày tải lên: 12/09/2015, 11:24

... disease Currently, there are three methods for detecting glaucoma: assessment of abnormal visual field, assessment of intraocular pressure (IOP) and assessment of optic nerve damage Visual field testing ... An example of color fundus image 2.1 Histogram of a bimodal image 2.2 Gradient vector flow [22] Left: deformation of snake with GVF forces Middle: GVF external forc...

Ngày tải lên: 05/10/2015, 22:32

... reaction of 7,8-diols and the enhanced nonbilayer phase propensity in membranes containing PtdEtn Effect of lipids on the stereoselectivity of epoxidation The stereoselectivity of the epoxidation ... redistribution of the substrate between the aqueous and the membrane phase and is brought about by a change in the nonbilayer phase prop...

Ngày tải lên: 08/03/2014, 10:20