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57214-U Supelco

Discovery® DSC-SAX SPE Bulk Packing

pkg of 100 g

  •  NACRES NB.21

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Properties

Related Categories Analytical/Chromatography, Discovery DSC-SAX SPE Products, Discovery SPE Tubes, Sample Preparation & Purification, Solid Phase Extraction (SPE) More...
Quality Level   100
packaging   pkg of 100 g
matrix active group   ammonium ion, quaternary bonding
Featured Industry   Food and Beverages
separation technique   ion exchange

Description

General description

Retention Mechanism: Anion-exchange
Sample Matrix Compatibility: Organic or aqueous solutions

• A polymerically bonded quarternary amine that remains positively charged at all pH levels
• Counter ion is Cl-
• Ion exchange capacity is ∼ 0.14 meq/g
• Commonly used when extracting weaker anions (e.g., carboxylic acids) that may not bind strongly enough to weaker anion-exchangers
• Selectivity can be modified by changing the counter ion with the appropriate buffer during conditioning
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Legal Information

Discovery is a registered trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles

Articles

Extraction and Analysis of Agricultural Pesticides from Oranges Using the “QuEChERS” Method

The toxicological effects of the chemicals which humans and animals are exposed to daily are of ever-increasing concern. In the last few years, emphasis has been placed on a group of chemicals loosel...
Katherine Stenerson, Robbie Wolford, andOlga Shimelis
Reporter EU Vol 23
Keywords: Agriculture, Centrifugation, Food Safety, Fungicides, Gas chromatography, Gas chromatography mass spectrometry, Herbicides, Hormones, Insecticides, Mass spectrometry, Pesticides, Solid phase extractions

Solid Phase Extraction: Ion Exchange Methodology

In order for electrostatic retention to occur, both analyte and sorbent functional groups must be in their ionized form. This is done through strict pH control of the sample matrix. For basic analyte...
Keywords: Agriculture, Buffers, Herbicides, Ion Exchange, Pharmaceutical, Solid phase extractions

Solid Phase Extraction: Normal Phase Methodology

In order for polar retention to occur between the sorbent and the sample, the analyte must be introduced to the SPE device in a non-polar sample or mobile phase environment. Therefore, typical sample...
Keywords: Cosmetics, Fractionation, Gas chromatography, Separation, Solid phase extractions, Solvents, Sonication

Related Content

SPE Cartridges (Tubes) - Phase Selection Guide

The SPE Tube Configuraton Guide will help you choose the appropriate bed weight and cartridge dimensions.
Keywords: Agriculture, Calorimetry, Environmental, Fractionation, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Pesticides, Pharmaceutical, Solid phase extractions

Solid Phase Extraction: Fundamentals and Recent Developments [Webinar]

Solid Phase Extraction (SPE) has become a popular technique for sample preparation due to its convenience, effectiveness, relatively low solvent usage and versatility. The focus of this webinar is on...
Keywords: Sample preparations, Solid phase extractions

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