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Application of solid phase extraction and high-performance

Abstract. New method of qualitative and quantitative analysis of nucleotides in human cerebrospinal fluid (CSF), based on the combination of extraction of purines and pyrimidines to the solid phase (SPE) and high-performance liquid chromatography (HPLC), was proposed. Use of SPE and lyophilization of samples allowed for the first time to detect the presence of di- and triphosphonucleotides in human CSF.

Cited by: 60

Solid-phase extraction and high-performance liquid

Solid-phase extraction and high-performance liquid chromatography mass spectrometry analysis of nitrosamines in treated drinking water and wastewater. Recently, newly developed liquid chromatography–tandem mass spectrometry (LC-MS 2) methods have shown potential advantages in determining polar DBPs.

Cited by: 116

Novel materials and methods for solid-phase extraction and

Solid-Phase Extraction 1 Solid-Phase Micro-Extraction 6 High-Performance Liquid Chromatography 8 References 14 SILICALITE AS A SORBENT FOR SOLID-PHASE EXTRACTION 23 Abstract 23 Introduction 24 Experimental 26 Reagents and chemicals 26 Procedure for SPE 27 Breakthrough curve procedure 28 Results and Discussion 29

Author: Dianna Lynn Ambrose

On-line solid phase extraction-ultra high performance

Jun 24, 2016· Sulfonamides are antimicrobials used widely as veterinary drugs, and their residues have been detected in environmental matrices. An analytical method for determining sulfadiazine, sulfathiazole, sulfamethazine, sulfamethoxazole, sulfadimethoxine and sulfaquinoxaline residues in soils employing a solid phase extraction on-line technique coupled with ultra-high performance liquid

Cited by: 61

(PDF) Solid phase extraction and high performance liquid

Journal of Chromatographic Science, Vol. 39, April 2001 Solid-Phase Extraction and High-Performance Liquid Chromatography Applied to the Determination of Quinapril and Its Metabolite Quinaprilat in Urine J.A. Prieto, R.M. Alonso*, R.M. Jiménez, and A. Blanco Departamento de Química Analítica, Facultad de Ciencias, Universidad del País Vasco, Apdo. 644, 48080 Bilbao, Spain Abstract

High Density Extruders for Liquid Extraction - Sebright

High Density Extruders for Liquid Extraction. The High Density Extruders are used to extract liquids from many types of industrial refuse byproducts, or to remove liquids from many commonly used packaged products and beverages. Tested and proven time and time again, the High Density Extruder is the best performing, most efficient and most reliable ram press available today.

Alfa Laval - Decanter centrifuge for solid-liquid separation

Alfa Laval decanter centrifuges help you with solid-liquid separation within one single continuous process. Stand out from the competition with high performance separation that results in extracted / clarified products of excellent quality and higher commercial value.

Recent advances and applications of synthetic diamonds in

Mar 15, 2021· Since the advent of diamond-based adsorbents in the late 1960s, the interest in their use for solid-phase extraction (SPE) and high-performance liquid chromatography (HPLC) has steadily increased. This is primarily due to their unique properties, such as extreme chemical and thermal stability, high mechanical strength and biocompatibility, and complex mixed-mode retention mechanisms.

Design procedures for solid-liquid extractors and the

1.1 Solid liquid extraction in the food industry 1 1.2 Organization of the study 5 1.3 Some general remarks on the model system studied 10 2 Effect of local phase contact on extraction efficiency 12 2.1 Classification of solid-liquid extractors 13 2.2 Diffusion battery 14 2.2.1 Mathematical model of a single-stage fixed bed 15

Gas/Liquid Separation Technology - Sulzer

High performance liquid/liquid coalescer A broad range of innovative and high-performing products More than 200 of our products cover a wide range of needs in the field of separation and mixing technology. They have proven their performance in more than 100'000 columns, 50'000 gas/liquid or liquid/liquid

On-line solid phase extraction-ultra-high performance

On-line solid phase extraction-ultra high performance liquid chromatography-tandem mass spectrometry as a powerful technique for the determination of sulfonamide residues in soils J. Chromatogr. A , 1452 ( 2016 ) , pp. 89 - 97

New methods and materials for solid phase extraction and

Apr 23, 1996· article{osti_219499, title = {New methods and materials for solid phase extraction and high performance liquid chromatography}, author = {Dumont, Philip John}, abstractNote = {This paper describes methods for solid phase extraction and high performance liquid chromatography (HPLC). The following are described: Effects of Resin Sulfonation on the Retention of Polar Organic Compounds in Solid

Novel materials and methods for solid-phase extraction and

Solid-Phase Extraction 1 Solid-Phase Micro-Extraction 6 High-Performance Liquid Chromatography 8 References 14 SILICALITE AS A SORBENT FOR SOLID-PHASE EXTRACTION 23 Abstract 23 Introduction 24 Experimental 26 Reagents and chemicals 26 Procedure for SPE 27 Breakthrough curve procedure 28 Results and Discussion 29 Particles for solid-phase

EPA Method 549.2: Determination of Diquat and Paraquat in

BY LIQUID-SOLID EXTRACTION AND HIGH PERFORMANCE LIQUID CHROMATOGRAPHY WITH ULTRAVIOLET DETECTION. 1. SCOPE AND APPLICATION 1.1. This is a high performance liquid chromatography (HPLC) method for the determination of diquat (1,1'-ethylene-2,2'-bipyridilium dibromide salt) and paraquat

A novel solid phase extraction Ultra high performance

Apr 01, 2015· A novel solid phase extraction Ultra high performance liquid chromatography–tandem mass spectrometry method for the quantification of ochratoxin A in red wines Author links open overlay panel Leonardo Mariño-Repizo a Frank Kero b Victor Vandell b Adam Senior b M. Isabel Sanz-Ferramola a Soledad Cerutti a Julio Raba a

(PDF) Solid phase extraction and high performance liquid

Journal of Chromatographic Science, Vol. 39, April 2001 Solid-Phase Extraction and High-Performance Liquid Chromatography Applied to the Determination of Quinapril and Its Metabolite Quinaprilat in Urine J.A. Prieto, R.M. Alonso*, R.M. Jiménez, and A. Blanco Departamento de Química Analítica, Facultad de Ciencias, Universidad del País Vasco, Apdo. 644, 48080 Bilbao, Spain Abstract

Optimized High-Performance Liquid Chromatography Method

Downloadable! Liquid-liquid extraction and solid phase extraction followed by high-performance liquid chromatography (HPLC) connected with ultraviolet (UV) detection were used for the determination of phytohormones. The parameters influencing the performance of the HPLC-UV method, including composition of the mobile phase for gradient elution, column temperature, flow rate, and detection

Examples Solid Liquid Extraction Units

1.5 Solid-phase extraction is called liquid-solid extraction (LSE) in some methods associated with the Safe Drinking Water Act. 1.6 Prior to employing this method, analysts are advised to consult the base method for each type of procedure that may be employed in the overall analysis (e.g.,

Speciation of metals in asphaltenes by high-performance

The work herein presents asphaltene fractionation by 1) solid/liquid extraction, which allows for separation of single-core (“island”) and multicore (“archipelago) structural motifs, and 2) high-performance thin layer chromatography (HPTLC) with cellulose as the stationary phase and DCM/MeOH as the eluent, which facilitates access to

Decanter Centrifuge Centrifuges & Separation Equipment

Extraction decanters mix a liquid containing a solid or extract with a liquid agent which contains the solids or liquid after mixing. Finally, there is the possibility of integrating a co-current, counter-current or dilution washing system in the decanter for washing the suspended solids.

Molecularly Imprinted Solid-Phase Extraction Coupled with

Oct 19, 2016· Xu ZX, Fang GZ, Wang S (2010) Molecularly imprinted solid phase extraction coupled to high-performance liquid chromatography for determination of trace dichlorvos residues in vegetables. Food Chem 119:845–850

Mini Butane Extractor Suppliers, all Quality Mini Butane

Mini Butane Passive Extractor Kit Bho Closed Loop Extractor. Country/Region: China. Main Products: stainless steel valve,pipe fittings, extractors ,solvent tank,clamps. Total Revenue: US$1 Million - US$2.5 Million. Top 3 Markets: North America 30% , Northern Europe 20% , Western Europe 10%.

Determination of Rivaroxaban in Human Plasma by Solid

Sep 07, 2015· In this study, a solid-phase extraction (SPE)–high performance liquid chromatography (HPLC)–ultra violet (UV) method was developed for the determination of riva We use cookies to enhance your experience on our website.By continuing to use our website, you are agreeing to our use of cookies.

Analysis of Hydroxylated Atrazine Degradation Products in

Apr 01, 1994· Determination of herbicide terbuthylazine and its major hydroxy and dealkylated metabolites in constructed wetland sediments using solid phase extraction and high performance liquid chromatography-diode array detection. International Journal of Environmental Analytical Chemistry 2012, 92 (12) , 1429-1442.

On-line solid phase extraction-ultra-high performance

On-line solid phase extraction-ultra high performance liquid chromatography-tandem mass spectrometry as a powerful technique for the determination of sulfonamide residues in soils J. Chromatogr. A , 1452 ( 2016 ) , pp. 89 - 97

A solid-phase extraction/high-performance liquid

A solid-phase extraction/high-performance liquid chromatography-based 32 P-postlabeling method for detection of cyclic 1,N 2-propanodeoxyguanosine adducts derived from enals Jishen Pan, Warren Davis, Neil Trushin, Shantu Amin , Raghu G. Nath, Norman Salem, Fung Lung Chung

On-line solid phase extraction-ultra high performance

Jun 24, 2016· Sulfonamides are antimicrobials used widely as veterinary drugs, and their residues have been detected in environmental matrices. An analytical method for determining sulfadiazine, sulfathiazole, sulfamethazine, sulfamethoxazole, sulfadimethoxine and sulfaquinoxaline residues in soils employing a solid phase extraction on-line technique coupled with ultra-high performance liquid

Magnetic nanoparticles solid phase extraction for

Dec 13, 2013· Magnetic nanoparticles solid phase extraction for determination of ochratoxin A in cereals using high-performance liquid chromatography with fluorescence detection. Mashhadizadeh MH(1), Amoli-Diva M, Pourghazi K. Author information: (1)Faculty of Chemistry, Kharazmi (Tarbiat Moallem) University, Tehran, Iran. Electronic address: mashhadizadeh

(PDF) Magnetic solid phase extraction followed by high

Magnetic solid phase extraction followed by high-performance liquid chromatography for the determination of sulphonamides in milk samples Food chemistry, 2014 Jose Rodriguez

High-performance liquid chromatography versus solid-phase

Jan 15, 1993· High-performance liquid chromatography versus solid-phase extraction for post-derivatization cleanup prior to gas chromatography-electron-capture negative-ion mass spectrometry of N1,N3-bis-(pentafluorobenzyl)-N7-(2-[pentafluorobenzyloxy]ethyl)xanthine, a product derived from an ethylene oxide DNA adduct

Determination of Phthalates Released - Oxford Academic

May 09, 2013· Abstract. A solid phase extraction (SPE) high-performance liquid chromatography (HPLC) method was developed for the simultaneous determination of 10 phthalic acid esters (dimethyl phthalate, diethyl phthalate, dipropyl phthalate, benzylbutyl phthalate, diisobutyl phthalate, dicyclohexyl phthalate, diamyl phthalate, di-n-hexyl phthalate, di-n-octyl phthalate and di-2-ethylhexyl phthalate

Examples Solid Liquid Extraction Units

1.5 Solid-phase extraction is called liquid-solid extraction (LSE) in some methods associated with the Safe Drinking Water Act. 1.6 Prior to employing this method, analysts are advised to consult the base method for each type of procedure that may be employed in the overall analysis (e.g.,

Optimized High-Performance Liquid Chromatography Method

Downloadable! Liquid-liquid extraction and solid phase extraction followed by high-performance liquid chromatography (HPLC) connected with ultraviolet (UV) detection were used for the determination of phytohormones. The parameters influencing the performance of the HPLC-UV method, including composition of the mobile phase for gradient elution, column temperature, flow rate, and detection

Durrmaid Super 1600 Hot Water Extractor, carpet cleaning

No need for two separate machines. The Durrmaid Super 1600 Extractor & Wet Dry Vacuum works as a vacuum and a hot water extractor, all in one portable carpet cleaning machine. The Durrmaid Super 1600 Extractor Wet Dry Vacuum fulfills your need for a powerful wet/dry vac and a high performance hot water extractor.

Automated Nucleic Acid Isolation DNA/RNA Extraction

Up to 50 µg DNA/ml blood. High throughput, fast processing times 1-96 samples/run, 10 µl 10 ml sample vol. in 60 min. The isolation of high-quality nucleic acids from various sample material is a key component of today’s molecular testing methods. Our high-performance solutions consisting of chemagic ™ instruments and kits provide

Extraction Techniques for Polycyclic Aromatic Hydrocarbons

Apr 12, 2010· Abstract. This paper aims to provide a review of the analytical extraction techniques for polycyclic aromatic hydrocarbons (PAHs) in soils. The extraction technologies described here include Soxhlet extraction, ultrasonic and mechanical agitation, accelerated solvent extraction, supercritical and subcritical fluid extraction, microwave-assisted extraction, solid phase extraction and

Impact of Different Extraction Methods on

The oleo-gum-resin of Commiphora myrrha is one of the most known natural antimicrobial agents, mainly due to its furanosesquiterpenes. A validated method based on sample extraction by matrix solid-phase dispersion (MSPD) followed by high-performance column chromatography (HPLC) determination is applied to analyze two furanosesquiterpenoids, namely, 2-methoxyfuranodiene (CM-1) and 2

Comparison of analytical and semi-preparative columns for

Apr 21, 2006· Comparison of analytical and semi-preparative columns for high-performance liquid chromatography-solid-phase extraction-nuclear magnetic resonance. Miliauskas G(1), van Beek TA, de Waard P, Venskutonis RP, Sudhölter EJ.